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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include "boost/algorithm/string.hpp" | |
9f95a23c | 5 | #include "bluestore_common.h" |
7c673cae FG |
6 | #include "BlueFS.h" |
7 | ||
8 | #include "common/debug.h" | |
9 | #include "common/errno.h" | |
10 | #include "common/perf_counters.h" | |
7c673cae | 11 | #include "Allocator.h" |
11fdf7f2 | 12 | #include "include/ceph_assert.h" |
eafe8130 | 13 | #include "common/admin_socket.h" |
7c673cae FG |
14 | |
15 | #define dout_context cct | |
16 | #define dout_subsys ceph_subsys_bluefs | |
17 | #undef dout_prefix | |
18 | #define dout_prefix *_dout << "bluefs " | |
9f95a23c | 19 | using TOPNSPC::common::cmd_getval; |
f67539c2 TL |
20 | |
21 | using std::byte; | |
22 | using std::list; | |
23 | using std::make_pair; | |
24 | using std::map; | |
25 | using std::ostream; | |
26 | using std::pair; | |
27 | using std::set; | |
28 | using std::string; | |
29 | using std::to_string; | |
30 | using std::vector; | |
31 | ||
32 | using ceph::bufferlist; | |
33 | using ceph::decode; | |
34 | using ceph::encode; | |
35 | using ceph::Formatter; | |
36 | ||
37 | ||
7c673cae FG |
38 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::File, bluefs_file, bluefs); |
39 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::Dir, bluefs_dir, bluefs); | |
f91f0fd5 | 40 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::FileWriter, bluefs_file_writer, bluefs_file_writer); |
7c673cae | 41 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::FileReaderBuffer, |
f91f0fd5 TL |
42 | bluefs_file_reader_buffer, bluefs_file_reader); |
43 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::FileReader, bluefs_file_reader, bluefs_file_reader); | |
7c673cae FG |
44 | MEMPOOL_DEFINE_OBJECT_FACTORY(BlueFS::FileLock, bluefs_file_lock, bluefs); |
45 | ||
11fdf7f2 TL |
46 | static void wal_discard_cb(void *priv, void* priv2) { |
47 | BlueFS *bluefs = static_cast<BlueFS*>(priv); | |
48 | interval_set<uint64_t> *tmp = static_cast<interval_set<uint64_t>*>(priv2); | |
49 | bluefs->handle_discard(BlueFS::BDEV_WAL, *tmp); | |
50 | } | |
51 | ||
52 | static void db_discard_cb(void *priv, void* priv2) { | |
53 | BlueFS *bluefs = static_cast<BlueFS*>(priv); | |
54 | interval_set<uint64_t> *tmp = static_cast<interval_set<uint64_t>*>(priv2); | |
55 | bluefs->handle_discard(BlueFS::BDEV_DB, *tmp); | |
56 | } | |
57 | ||
58 | static void slow_discard_cb(void *priv, void* priv2) { | |
59 | BlueFS *bluefs = static_cast<BlueFS*>(priv); | |
60 | interval_set<uint64_t> *tmp = static_cast<interval_set<uint64_t>*>(priv2); | |
61 | bluefs->handle_discard(BlueFS::BDEV_SLOW, *tmp); | |
62 | } | |
7c673cae | 63 | |
eafe8130 TL |
64 | class BlueFS::SocketHook : public AdminSocketHook { |
65 | BlueFS* bluefs; | |
66 | public: | |
67 | static BlueFS::SocketHook* create(BlueFS* bluefs) | |
68 | { | |
69 | BlueFS::SocketHook* hook = nullptr; | |
70 | AdminSocket* admin_socket = bluefs->cct->get_admin_socket(); | |
71 | if (admin_socket) { | |
72 | hook = new BlueFS::SocketHook(bluefs); | |
f67539c2 | 73 | int r = admin_socket->register_command("bluestore bluefs device info " |
eafe8130 TL |
74 | "name=alloc_size,type=CephInt,req=false", |
75 | hook, | |
f67539c2 TL |
76 | "Shows space report for bluefs devices. " |
77 | "This also includes an estimation for space " | |
78 | "available to bluefs at main device. " | |
79 | "alloc_size, if set, specifies the custom bluefs " | |
80 | "allocation unit size for the estimation above."); | |
eafe8130 TL |
81 | if (r != 0) { |
82 | ldout(bluefs->cct, 1) << __func__ << " cannot register SocketHook" << dendl; | |
83 | delete hook; | |
84 | hook = nullptr; | |
9f95a23c | 85 | } else { |
f6b5b4d7 | 86 | r = admin_socket->register_command("bluefs stats", |
9f95a23c TL |
87 | hook, |
88 | "Dump internal statistics for bluefs." | |
89 | ""); | |
90 | ceph_assert(r == 0); | |
f67539c2 TL |
91 | r = admin_socket->register_command("bluefs files list", hook, |
92 | "print files in bluefs"); | |
93 | ceph_assert(r == 0); | |
cd265ab1 TL |
94 | r = admin_socket->register_command("bluefs debug_inject_read_zeros", hook, |
95 | "Injects 8K zeros into next BlueFS read. Debug only."); | |
96 | ceph_assert(r == 0); | |
eafe8130 TL |
97 | } |
98 | } | |
99 | return hook; | |
100 | } | |
101 | ||
102 | ~SocketHook() { | |
103 | AdminSocket* admin_socket = bluefs->cct->get_admin_socket(); | |
9f95a23c | 104 | admin_socket->unregister_commands(this); |
eafe8130 TL |
105 | } |
106 | private: | |
107 | SocketHook(BlueFS* bluefs) : | |
108 | bluefs(bluefs) {} | |
9f95a23c TL |
109 | int call(std::string_view command, const cmdmap_t& cmdmap, |
110 | Formatter *f, | |
111 | std::ostream& errss, | |
112 | bufferlist& out) override { | |
f67539c2 | 113 | if (command == "bluestore bluefs device info") { |
9f95a23c TL |
114 | int64_t alloc_size = 0; |
115 | cmd_getval(cmdmap, "alloc_size", alloc_size); | |
116 | if ((alloc_size & (alloc_size - 1)) != 0) { | |
117 | errss << "Invalid allocation size:'" << alloc_size << std::endl; | |
118 | return -EINVAL; | |
119 | } | |
120 | if (alloc_size == 0) | |
f67539c2 TL |
121 | alloc_size = bluefs->cct->_conf->bluefs_shared_alloc_size; |
122 | f->open_object_section("bluefs_device_info"); | |
9f95a23c TL |
123 | for (unsigned dev = BDEV_WAL; dev <= BDEV_SLOW; dev++) { |
124 | if (bluefs->bdev[dev]) { | |
125 | f->open_object_section("dev"); | |
126 | f->dump_string("device", bluefs->get_device_name(dev)); | |
127 | ceph_assert(bluefs->alloc[dev]); | |
f67539c2 TL |
128 | auto total = bluefs->get_total(dev); |
129 | auto free = bluefs->get_free(dev); | |
130 | auto used = bluefs->get_used(dev); | |
131 | ||
132 | f->dump_int("total", total); | |
133 | f->dump_int("free", free); | |
134 | f->dump_int("bluefs_used", used); | |
135 | if (bluefs->is_shared_alloc(dev)) { | |
136 | size_t avail = bluefs->probe_alloc_avail(dev, alloc_size); | |
137 | f->dump_int("bluefs max available", avail); | |
138 | } | |
139 | f->close_section(); | |
140 | } | |
eafe8130 | 141 | } |
f67539c2 | 142 | |
9f95a23c TL |
143 | f->close_section(); |
144 | } else if (command == "bluefs stats") { | |
145 | std::stringstream ss; | |
146 | bluefs->dump_block_extents(ss); | |
147 | bluefs->dump_volume_selector(ss); | |
eafe8130 | 148 | out.append(ss); |
f67539c2 TL |
149 | } else if (command == "bluefs files list") { |
150 | const char* devnames[3] = {"wal","db","slow"}; | |
151 | std::lock_guard l(bluefs->lock); | |
152 | f->open_array_section("files"); | |
153 | for (auto &d : bluefs->dir_map) { | |
154 | std::string dir = d.first; | |
155 | for (auto &r : d.second->file_map) { | |
156 | f->open_object_section("file"); | |
157 | f->dump_string("name", (dir + "/" + r.first).c_str()); | |
158 | std::vector<size_t> sizes; | |
159 | sizes.resize(bluefs->bdev.size()); | |
160 | for(auto& i : r.second->fnode.extents) { | |
161 | sizes[i.bdev] += i.length; | |
162 | } | |
163 | for (size_t i = 0; i < sizes.size(); i++) { | |
164 | if (sizes[i]>0) { | |
165 | if (i < sizeof(devnames) / sizeof(*devnames)) | |
166 | f->dump_int(devnames[i], sizes[i]); | |
167 | else | |
168 | f->dump_int(("dev-"+to_string(i)).c_str(), sizes[i]); | |
169 | } | |
170 | } | |
171 | f->close_section(); | |
172 | } | |
173 | } | |
174 | f->close_section(); | |
175 | f->flush(out); | |
cd265ab1 TL |
176 | } else if (command == "bluefs debug_inject_read_zeros") { |
177 | bluefs->inject_read_zeros++; | |
9f95a23c TL |
178 | } else { |
179 | errss << "Invalid command" << std::endl; | |
180 | return -ENOSYS; | |
eafe8130 | 181 | } |
9f95a23c TL |
182 | return 0; |
183 | } | |
eafe8130 TL |
184 | }; |
185 | ||
7c673cae FG |
186 | BlueFS::BlueFS(CephContext* cct) |
187 | : cct(cct), | |
188 | bdev(MAX_BDEV), | |
189 | ioc(MAX_BDEV), | |
f67539c2 TL |
190 | block_reserved(MAX_BDEV), |
191 | alloc(MAX_BDEV), | |
192 | alloc_size(MAX_BDEV, 0), | |
193 | pending_release(MAX_BDEV) | |
7c673cae | 194 | { |
11fdf7f2 TL |
195 | discard_cb[BDEV_WAL] = wal_discard_cb; |
196 | discard_cb[BDEV_DB] = db_discard_cb; | |
197 | discard_cb[BDEV_SLOW] = slow_discard_cb; | |
eafe8130 | 198 | asok_hook = SocketHook::create(this); |
f67539c2 | 199 | |
7c673cae FG |
200 | } |
201 | ||
202 | BlueFS::~BlueFS() | |
203 | { | |
eafe8130 | 204 | delete asok_hook; |
7c673cae FG |
205 | for (auto p : ioc) { |
206 | if (p) | |
207 | p->aio_wait(); | |
208 | } | |
209 | for (auto p : bdev) { | |
210 | if (p) { | |
211 | p->close(); | |
212 | delete p; | |
213 | } | |
214 | } | |
215 | for (auto p : ioc) { | |
216 | delete p; | |
217 | } | |
218 | } | |
219 | ||
220 | void BlueFS::_init_logger() | |
221 | { | |
222 | PerfCountersBuilder b(cct, "bluefs", | |
223 | l_bluefs_first, l_bluefs_last); | |
7c673cae FG |
224 | b.add_u64(l_bluefs_db_total_bytes, "db_total_bytes", |
225 | "Total bytes (main db device)", | |
11fdf7f2 | 226 | "b", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
227 | b.add_u64(l_bluefs_db_used_bytes, "db_used_bytes", |
228 | "Used bytes (main db device)", | |
11fdf7f2 | 229 | "u", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
230 | b.add_u64(l_bluefs_wal_total_bytes, "wal_total_bytes", |
231 | "Total bytes (wal device)", | |
11fdf7f2 | 232 | "walb", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
233 | b.add_u64(l_bluefs_wal_used_bytes, "wal_used_bytes", |
234 | "Used bytes (wal device)", | |
11fdf7f2 | 235 | "walu", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
236 | b.add_u64(l_bluefs_slow_total_bytes, "slow_total_bytes", |
237 | "Total bytes (slow device)", | |
11fdf7f2 | 238 | "slob", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
239 | b.add_u64(l_bluefs_slow_used_bytes, "slow_used_bytes", |
240 | "Used bytes (slow device)", | |
11fdf7f2 | 241 | "slou", PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); |
7c673cae FG |
242 | b.add_u64(l_bluefs_num_files, "num_files", "File count", |
243 | "f", PerfCountersBuilder::PRIO_USEFUL); | |
244 | b.add_u64(l_bluefs_log_bytes, "log_bytes", "Size of the metadata log", | |
11fdf7f2 | 245 | "jlen", PerfCountersBuilder::PRIO_INTERESTING, unit_t(UNIT_BYTES)); |
7c673cae FG |
246 | b.add_u64_counter(l_bluefs_log_compactions, "log_compactions", |
247 | "Compactions of the metadata log"); | |
248 | b.add_u64_counter(l_bluefs_logged_bytes, "logged_bytes", | |
249 | "Bytes written to the metadata log", "j", | |
11fdf7f2 | 250 | PerfCountersBuilder::PRIO_CRITICAL, unit_t(UNIT_BYTES)); |
7c673cae FG |
251 | b.add_u64_counter(l_bluefs_files_written_wal, "files_written_wal", |
252 | "Files written to WAL"); | |
253 | b.add_u64_counter(l_bluefs_files_written_sst, "files_written_sst", | |
254 | "Files written to SSTs"); | |
255 | b.add_u64_counter(l_bluefs_bytes_written_wal, "bytes_written_wal", | |
256 | "Bytes written to WAL", "wal", | |
257 | PerfCountersBuilder::PRIO_CRITICAL); | |
258 | b.add_u64_counter(l_bluefs_bytes_written_sst, "bytes_written_sst", | |
259 | "Bytes written to SSTs", "sst", | |
11fdf7f2 TL |
260 | PerfCountersBuilder::PRIO_CRITICAL, unit_t(UNIT_BYTES)); |
261 | b.add_u64_counter(l_bluefs_bytes_written_slow, "bytes_written_slow", | |
262 | "Bytes written to WAL/SSTs at slow device", NULL, | |
263 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
264 | b.add_u64_counter(l_bluefs_max_bytes_wal, "max_bytes_wal", | |
265 | "Maximum bytes allocated from WAL"); | |
266 | b.add_u64_counter(l_bluefs_max_bytes_db, "max_bytes_db", | |
267 | "Maximum bytes allocated from DB"); | |
268 | b.add_u64_counter(l_bluefs_max_bytes_slow, "max_bytes_slow", | |
269 | "Maximum bytes allocated from SLOW"); | |
494da23a TL |
270 | |
271 | b.add_u64_counter(l_bluefs_read_random_count, "read_random_count", | |
272 | "random read requests processed"); | |
273 | b.add_u64_counter(l_bluefs_read_random_bytes, "read_random_bytes", | |
274 | "Bytes requested in random read mode", NULL, | |
275 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
276 | b.add_u64_counter(l_bluefs_read_random_disk_count, "read_random_disk_count", | |
277 | "random reads requests going to disk"); | |
278 | b.add_u64_counter(l_bluefs_read_random_disk_bytes, "read_random_disk_bytes", | |
279 | "Bytes read from disk in random read mode", NULL, | |
280 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
281 | b.add_u64_counter(l_bluefs_read_random_buffer_count, "read_random_buffer_count", | |
282 | "random read requests processed using prefetch buffer"); | |
283 | b.add_u64_counter(l_bluefs_read_random_buffer_bytes, "read_random_buffer_bytes", | |
284 | "Bytes read from prefetch buffer in random read mode", NULL, | |
285 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
286 | ||
287 | b.add_u64_counter(l_bluefs_read_count, "read_count", | |
288 | "buffered read requests processed"); | |
289 | b.add_u64_counter(l_bluefs_read_bytes, "read_bytes", | |
290 | "Bytes requested in buffered read mode", NULL, | |
291 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
292 | ||
293 | b.add_u64_counter(l_bluefs_read_prefetch_count, "read_prefetch_count", | |
294 | "prefetch read requests processed"); | |
295 | b.add_u64_counter(l_bluefs_read_prefetch_bytes, "read_prefetch_bytes", | |
296 | "Bytes requested in prefetch read mode", NULL, | |
297 | PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES)); | |
cd265ab1 TL |
298 | b.add_u64(l_bluefs_read_zeros_candidate, "read_zeros_candidate", |
299 | "How many times bluefs read found page with all 0s"); | |
300 | b.add_u64(l_bluefs_read_zeros_errors, "read_zeros_errors", | |
301 | "How many times bluefs read found transient page with all 0s"); | |
494da23a | 302 | |
7c673cae FG |
303 | logger = b.create_perf_counters(); |
304 | cct->get_perfcounters_collection()->add(logger); | |
305 | } | |
306 | ||
307 | void BlueFS::_shutdown_logger() | |
308 | { | |
309 | cct->get_perfcounters_collection()->remove(logger); | |
310 | delete logger; | |
311 | } | |
312 | ||
313 | void BlueFS::_update_logger_stats() | |
314 | { | |
315 | // we must be holding the lock | |
316 | logger->set(l_bluefs_num_files, file_map.size()); | |
317 | logger->set(l_bluefs_log_bytes, log_writer->file->fnode.size); | |
318 | ||
319 | if (alloc[BDEV_WAL]) { | |
f67539c2 TL |
320 | logger->set(l_bluefs_wal_total_bytes, _get_total(BDEV_WAL)); |
321 | logger->set(l_bluefs_wal_used_bytes, _get_used(BDEV_WAL)); | |
7c673cae FG |
322 | } |
323 | if (alloc[BDEV_DB]) { | |
f67539c2 TL |
324 | logger->set(l_bluefs_db_total_bytes, _get_total(BDEV_DB)); |
325 | logger->set(l_bluefs_db_used_bytes, _get_used(BDEV_DB)); | |
7c673cae FG |
326 | } |
327 | if (alloc[BDEV_SLOW]) { | |
f67539c2 TL |
328 | logger->set(l_bluefs_slow_total_bytes, _get_total(BDEV_SLOW)); |
329 | logger->set(l_bluefs_slow_used_bytes, _get_used(BDEV_SLOW)); | |
7c673cae FG |
330 | } |
331 | } | |
332 | ||
11fdf7f2 | 333 | int BlueFS::add_block_device(unsigned id, const string& path, bool trim, |
f67539c2 TL |
334 | uint64_t reserved, |
335 | bluefs_shared_alloc_context_t* _shared_alloc) | |
7c673cae | 336 | { |
f67539c2 TL |
337 | dout(10) << __func__ << " bdev " << id << " path " << path << " " |
338 | << reserved << dendl; | |
11fdf7f2 TL |
339 | ceph_assert(id < bdev.size()); |
340 | ceph_assert(bdev[id] == NULL); | |
341 | BlockDevice *b = BlockDevice::create(cct, path, NULL, NULL, | |
342 | discard_cb[id], static_cast<void*>(this)); | |
f67539c2 TL |
343 | block_reserved[id] = reserved; |
344 | if (_shared_alloc) { | |
11fdf7f2 TL |
345 | b->set_no_exclusive_lock(); |
346 | } | |
7c673cae FG |
347 | int r = b->open(path); |
348 | if (r < 0) { | |
349 | delete b; | |
350 | return r; | |
351 | } | |
11fdf7f2 TL |
352 | if (trim) { |
353 | b->discard(0, b->get_size()); | |
354 | } | |
355 | ||
7c673cae | 356 | dout(1) << __func__ << " bdev " << id << " path " << path |
1adf2230 | 357 | << " size " << byte_u_t(b->get_size()) << dendl; |
7c673cae FG |
358 | bdev[id] = b; |
359 | ioc[id] = new IOContext(cct, NULL); | |
f67539c2 TL |
360 | if (_shared_alloc) { |
361 | ceph_assert(!shared_alloc); | |
362 | shared_alloc = _shared_alloc; | |
363 | alloc[id] = shared_alloc->a; | |
364 | shared_alloc_id = id; | |
365 | } | |
7c673cae FG |
366 | return 0; |
367 | } | |
368 | ||
369 | bool BlueFS::bdev_support_label(unsigned id) | |
370 | { | |
11fdf7f2 TL |
371 | ceph_assert(id < bdev.size()); |
372 | ceph_assert(bdev[id]); | |
7c673cae FG |
373 | return bdev[id]->supported_bdev_label(); |
374 | } | |
375 | ||
f67539c2 | 376 | uint64_t BlueFS::get_block_device_size(unsigned id) const |
7c673cae FG |
377 | { |
378 | if (id < bdev.size() && bdev[id]) | |
379 | return bdev[id]->get_size(); | |
380 | return 0; | |
381 | } | |
382 | ||
f67539c2 | 383 | void BlueFS::handle_discard(unsigned id, interval_set<uint64_t>& to_release) |
7c673cae | 384 | { |
f67539c2 TL |
385 | dout(10) << __func__ << " bdev " << id << dendl; |
386 | ceph_assert(alloc[id]); | |
387 | alloc[id]->release(to_release); | |
388 | if (is_shared_alloc(id)) { | |
389 | shared_alloc->bluefs_used -= to_release.size(); | |
7c673cae | 390 | } |
7c673cae FG |
391 | } |
392 | ||
f67539c2 | 393 | uint64_t BlueFS::get_used() |
7c673cae | 394 | { |
f67539c2 TL |
395 | std::lock_guard l(lock); |
396 | uint64_t used = 0; | |
397 | for (unsigned id = 0; id < MAX_BDEV; ++id) { | |
398 | used += _get_used(id); | |
7c673cae | 399 | } |
f67539c2 TL |
400 | return used; |
401 | } | |
7c673cae | 402 | |
f67539c2 TL |
403 | uint64_t BlueFS::_get_used(unsigned id) const |
404 | { | |
405 | uint64_t used = 0; | |
406 | if (!alloc[id]) | |
407 | return 0; | |
9f95a23c | 408 | |
f67539c2 TL |
409 | if (is_shared_alloc(id)) { |
410 | used = shared_alloc->bluefs_used; | |
411 | } else { | |
412 | used = _get_total(id) - alloc[id]->get_free(); | |
9f95a23c | 413 | } |
f67539c2 | 414 | return used; |
7c673cae FG |
415 | } |
416 | ||
f67539c2 | 417 | uint64_t BlueFS::get_used(unsigned id) |
7c673cae | 418 | { |
f67539c2 | 419 | ceph_assert(id < alloc.size()); |
11fdf7f2 | 420 | ceph_assert(alloc[id]); |
f67539c2 TL |
421 | std::lock_guard l(lock); |
422 | return _get_used(id); | |
11fdf7f2 TL |
423 | } |
424 | ||
f67539c2 | 425 | uint64_t BlueFS::_get_total(unsigned id) const |
11fdf7f2 | 426 | { |
f67539c2 TL |
427 | ceph_assert(id < bdev.size()); |
428 | ceph_assert(id < block_reserved.size()); | |
429 | return get_block_device_size(id) - block_reserved[id]; | |
7c673cae FG |
430 | } |
431 | ||
432 | uint64_t BlueFS::get_total(unsigned id) | |
433 | { | |
11fdf7f2 | 434 | std::lock_guard l(lock); |
f67539c2 | 435 | return _get_total(id); |
7c673cae FG |
436 | } |
437 | ||
438 | uint64_t BlueFS::get_free(unsigned id) | |
439 | { | |
11fdf7f2 TL |
440 | std::lock_guard l(lock); |
441 | ceph_assert(id < alloc.size()); | |
7c673cae FG |
442 | return alloc[id]->get_free(); |
443 | } | |
444 | ||
445 | void BlueFS::dump_perf_counters(Formatter *f) | |
446 | { | |
447 | f->open_object_section("bluefs_perf_counters"); | |
448 | logger->dump_formatted(f,0); | |
449 | f->close_section(); | |
450 | } | |
451 | ||
3efd9988 FG |
452 | void BlueFS::dump_block_extents(ostream& out) |
453 | { | |
454 | for (unsigned i = 0; i < MAX_BDEV; ++i) { | |
455 | if (!bdev[i]) { | |
456 | continue; | |
457 | } | |
f67539c2 | 458 | auto total = get_total(i); |
11fdf7f2 | 459 | auto free = get_free(i); |
1911f103 | 460 | |
f67539c2 TL |
461 | out << i << " : device size 0x" << std::hex << total |
462 | << " : using 0x" << total - free | |
463 | << std::dec << "(" << byte_u_t(total - free) << ")"; | |
1911f103 | 464 | out << "\n"; |
3efd9988 FG |
465 | } |
466 | } | |
7c673cae | 467 | |
7c673cae FG |
468 | int BlueFS::get_block_extents(unsigned id, interval_set<uint64_t> *extents) |
469 | { | |
11fdf7f2 | 470 | std::lock_guard l(lock); |
7c673cae | 471 | dout(10) << __func__ << " bdev " << id << dendl; |
f67539c2 TL |
472 | ceph_assert(id < alloc.size()); |
473 | for (auto& p : file_map) { | |
474 | for (auto& q : p.second->fnode.extents) { | |
475 | if (q.bdev == id) { | |
476 | extents->insert(q.offset, q.length); | |
477 | } | |
478 | } | |
479 | } | |
7c673cae FG |
480 | return 0; |
481 | } | |
482 | ||
9f95a23c | 483 | int BlueFS::mkfs(uuid_d osd_uuid, const bluefs_layout_t& layout) |
7c673cae | 484 | { |
11fdf7f2 | 485 | std::unique_lock l(lock); |
7c673cae FG |
486 | dout(1) << __func__ |
487 | << " osd_uuid " << osd_uuid | |
488 | << dendl; | |
489 | ||
9f95a23c TL |
490 | // set volume selector if not provided before/outside |
491 | if (vselector == nullptr) { | |
492 | vselector.reset( | |
493 | new OriginalVolumeSelector( | |
494 | get_block_device_size(BlueFS::BDEV_WAL) * 95 / 100, | |
495 | get_block_device_size(BlueFS::BDEV_DB) * 95 / 100, | |
496 | get_block_device_size(BlueFS::BDEV_SLOW) * 95 / 100)); | |
497 | } | |
498 | ||
7c673cae FG |
499 | _init_alloc(); |
500 | _init_logger(); | |
501 | ||
502 | super.version = 1; | |
503 | super.block_size = bdev[BDEV_DB]->get_block_size(); | |
504 | super.osd_uuid = osd_uuid; | |
505 | super.uuid.generate_random(); | |
506 | dout(1) << __func__ << " uuid " << super.uuid << dendl; | |
507 | ||
508 | // init log | |
9f95a23c | 509 | FileRef log_file = ceph::make_ref<File>(); |
7c673cae | 510 | log_file->fnode.ino = 1; |
f6b5b4d7 | 511 | log_file->vselector_hint = vselector->get_hint_for_log(); |
7c673cae | 512 | int r = _allocate( |
9f95a23c | 513 | vselector->select_prefer_bdev(log_file->vselector_hint), |
7c673cae | 514 | cct->_conf->bluefs_max_log_runway, |
94b18763 | 515 | &log_file->fnode); |
9f95a23c | 516 | vselector->add_usage(log_file->vselector_hint, log_file->fnode); |
11fdf7f2 | 517 | ceph_assert(r == 0); |
7c673cae FG |
518 | log_writer = _create_writer(log_file); |
519 | ||
520 | // initial txn | |
521 | log_t.op_init(); | |
7c673cae FG |
522 | _flush_and_sync_log(l); |
523 | ||
524 | // write supers | |
525 | super.log_fnode = log_file->fnode; | |
9f95a23c | 526 | super.memorized_layout = layout; |
11fdf7f2 | 527 | _write_super(BDEV_DB); |
7c673cae FG |
528 | flush_bdev(); |
529 | ||
530 | // clean up | |
531 | super = bluefs_super_t(); | |
532 | _close_writer(log_writer); | |
533 | log_writer = NULL; | |
9f95a23c | 534 | vselector.reset(nullptr); |
7c673cae FG |
535 | _stop_alloc(); |
536 | _shutdown_logger(); | |
f67539c2 TL |
537 | if (shared_alloc) { |
538 | ceph_assert(shared_alloc->need_init); | |
539 | shared_alloc->need_init = false; | |
540 | } | |
7c673cae FG |
541 | |
542 | dout(10) << __func__ << " success" << dendl; | |
543 | return 0; | |
544 | } | |
545 | ||
546 | void BlueFS::_init_alloc() | |
547 | { | |
548 | dout(20) << __func__ << dendl; | |
eafe8130 TL |
549 | |
550 | if (bdev[BDEV_WAL]) { | |
551 | alloc_size[BDEV_WAL] = cct->_conf->bluefs_alloc_size; | |
552 | } | |
553 | if (bdev[BDEV_SLOW]) { | |
554 | alloc_size[BDEV_DB] = cct->_conf->bluefs_alloc_size; | |
555 | alloc_size[BDEV_SLOW] = cct->_conf->bluefs_shared_alloc_size; | |
556 | } else { | |
557 | alloc_size[BDEV_DB] = cct->_conf->bluefs_shared_alloc_size; | |
558 | } | |
559 | // new wal and db devices are never shared | |
560 | if (bdev[BDEV_NEWWAL]) { | |
561 | alloc_size[BDEV_NEWWAL] = cct->_conf->bluefs_alloc_size; | |
562 | } | |
563 | if (bdev[BDEV_NEWDB]) { | |
564 | alloc_size[BDEV_NEWDB] = cct->_conf->bluefs_alloc_size; | |
565 | } | |
566 | ||
7c673cae FG |
567 | for (unsigned id = 0; id < bdev.size(); ++id) { |
568 | if (!bdev[id]) { | |
569 | continue; | |
570 | } | |
11fdf7f2 | 571 | ceph_assert(bdev[id]->get_size()); |
eafe8130 | 572 | ceph_assert(alloc_size[id]); |
f67539c2 TL |
573 | if (is_shared_alloc(id)) { |
574 | dout(1) << __func__ << " shared, id " << id << std::hex | |
575 | << ", capacity 0x" << bdev[id]->get_size() | |
576 | << ", block size 0x" << alloc_size[id] | |
577 | << std::dec << dendl; | |
578 | } else { | |
579 | std::string name = "bluefs-"; | |
580 | const char* devnames[] = { "wal","db","slow" }; | |
581 | if (id <= BDEV_SLOW) | |
582 | name += devnames[id]; | |
583 | else | |
584 | name += to_string(uintptr_t(this)); | |
585 | dout(1) << __func__ << " new, id " << id << std::hex | |
586 | << ", allocator name " << name | |
587 | << ", allocator type " << cct->_conf->bluefs_allocator | |
588 | << ", capacity 0x" << bdev[id]->get_size() | |
589 | << ", block size 0x" << alloc_size[id] | |
590 | << std::dec << dendl; | |
591 | alloc[id] = Allocator::create(cct, cct->_conf->bluefs_allocator, | |
592 | bdev[id]->get_size(), | |
593 | alloc_size[id], name); | |
594 | alloc[id]->init_add_free( | |
595 | block_reserved[id], | |
596 | _get_total(id)); | |
7c673cae FG |
597 | } |
598 | } | |
599 | } | |
600 | ||
601 | void BlueFS::_stop_alloc() | |
602 | { | |
603 | dout(20) << __func__ << dendl; | |
11fdf7f2 TL |
604 | for (auto p : bdev) { |
605 | if (p) | |
606 | p->discard_drain(); | |
607 | } | |
608 | ||
f67539c2 TL |
609 | for (size_t i = 0; i < alloc.size(); ++i) { |
610 | if (alloc[i] && !is_shared_alloc(i)) { | |
611 | alloc[i]->shutdown(); | |
612 | delete alloc[i]; | |
613 | alloc[i] = nullptr; | |
7c673cae FG |
614 | } |
615 | } | |
7c673cae FG |
616 | } |
617 | ||
cd265ab1 TL |
618 | int BlueFS::read(uint8_t ndev, uint64_t off, uint64_t len, |
619 | ceph::buffer::list *pbl, IOContext *ioc, bool buffered) | |
620 | { | |
621 | dout(10) << __func__ << " dev " << int(ndev) | |
622 | << ": 0x" << std::hex << off << "~" << len << std::dec | |
623 | << (buffered ? " buffered" : "") | |
624 | << dendl; | |
625 | int r; | |
626 | bufferlist bl; | |
627 | r = bdev[ndev]->read(off, len, &bl, ioc, buffered); | |
628 | if (r != 0) { | |
629 | return r; | |
630 | } | |
631 | uint64_t block_size = bdev[ndev]->get_block_size(); | |
632 | if (inject_read_zeros) { | |
633 | if (len >= block_size * 2) { | |
634 | derr << __func__ << " injecting error, zeros at " | |
635 | << int(ndev) << ": 0x" << std::hex << (off + len / 2) | |
636 | << "~" << (block_size * 2) << std::dec << dendl; | |
637 | //use beginning, replace 8K in the middle with zeros, use tail | |
638 | bufferlist temp; | |
639 | bl.splice(0, len / 2 - block_size, &temp); | |
f67539c2 | 640 | temp.append(buffer::create(block_size * 2, 0)); |
cd265ab1 TL |
641 | bl.splice(block_size * 2, len / 2 - block_size, &temp); |
642 | bl = temp; | |
643 | inject_read_zeros--; | |
644 | } | |
645 | } | |
646 | //make a check if there is a block with all 0 | |
647 | uint64_t to_check_len = len; | |
648 | uint64_t skip = p2nphase(off, block_size); | |
649 | if (skip >= to_check_len) { | |
650 | return r; | |
651 | } | |
652 | auto it = bl.begin(skip); | |
653 | to_check_len -= skip; | |
654 | bool all_zeros = false; | |
655 | while (all_zeros == false && to_check_len >= block_size) { | |
656 | // checking 0s step | |
657 | unsigned block_left = block_size; | |
658 | unsigned avail; | |
659 | const char* data; | |
660 | all_zeros = true; | |
661 | while (all_zeros && block_left > 0) { | |
662 | avail = it.get_ptr_and_advance(block_left, &data); | |
663 | block_left -= avail; | |
664 | all_zeros = mem_is_zero(data, avail); | |
665 | } | |
666 | // skipping step | |
667 | while (block_left > 0) { | |
668 | avail = it.get_ptr_and_advance(block_left, &data); | |
669 | block_left -= avail; | |
670 | } | |
671 | to_check_len -= block_size; | |
672 | } | |
673 | if (all_zeros) { | |
674 | logger->inc(l_bluefs_read_zeros_candidate, 1); | |
675 | bufferlist bl_reread; | |
676 | r = bdev[ndev]->read(off, len, &bl_reread, ioc, buffered); | |
677 | if (r != 0) { | |
678 | return r; | |
679 | } | |
680 | // check if both read gave the same | |
681 | if (!bl.contents_equal(bl_reread)) { | |
682 | // report problems to log, but continue, maybe it will be good now... | |
683 | derr << __func__ << " initial read of " << int(ndev) | |
684 | << ": 0x" << std::hex << off << "~" << len | |
685 | << std::dec << ": different then re-read " << dendl; | |
686 | logger->inc(l_bluefs_read_zeros_errors, 1); | |
687 | } | |
688 | // use second read will be better if is different | |
689 | pbl->append(bl_reread); | |
690 | } else { | |
691 | pbl->append(bl); | |
692 | } | |
693 | return r; | |
694 | } | |
695 | ||
696 | int BlueFS::read_random(uint8_t ndev, uint64_t off, uint64_t len, char *buf, bool buffered) | |
697 | { | |
698 | dout(10) << __func__ << " dev " << int(ndev) | |
699 | << ": 0x" << std::hex << off << "~" << len << std::dec | |
700 | << (buffered ? " buffered" : "") | |
701 | << dendl; | |
702 | int r; | |
703 | r = bdev[ndev]->read_random(off, len, buf, buffered); | |
704 | if (r != 0) { | |
705 | return r; | |
706 | } | |
707 | uint64_t block_size = bdev[ndev]->get_block_size(); | |
708 | if (inject_read_zeros) { | |
709 | if (len >= block_size * 2) { | |
710 | derr << __func__ << " injecting error, zeros at " | |
711 | << int(ndev) << ": 0x" << std::hex << (off + len / 2) | |
712 | << "~" << (block_size * 2) << std::dec << dendl; | |
713 | //zero middle 8K | |
714 | memset(buf + len / 2 - block_size, 0, block_size * 2); | |
715 | inject_read_zeros--; | |
716 | } | |
717 | } | |
718 | //make a check if there is a block with all 0 | |
719 | uint64_t to_check_len = len; | |
720 | const char* data = buf; | |
721 | uint64_t skip = p2nphase(off, block_size); | |
722 | if (skip >= to_check_len) { | |
723 | return r; | |
724 | } | |
725 | to_check_len -= skip; | |
726 | data += skip; | |
727 | ||
728 | bool all_zeros = false; | |
729 | while (all_zeros == false && to_check_len >= block_size) { | |
730 | if (mem_is_zero(data, block_size)) { | |
731 | // at least one block is all zeros | |
732 | all_zeros = true; | |
733 | break; | |
734 | } | |
735 | data += block_size; | |
736 | to_check_len -= block_size; | |
737 | } | |
738 | if (all_zeros) { | |
739 | logger->inc(l_bluefs_read_zeros_candidate, 1); | |
740 | std::unique_ptr<char[]> data_reread(new char[len]); | |
741 | r = bdev[ndev]->read_random(off, len, &data_reread[0], buffered); | |
742 | if (r != 0) { | |
743 | return r; | |
744 | } | |
745 | // check if both read gave the same | |
746 | if (memcmp(buf, &data_reread[0], len) != 0) { | |
747 | derr << __func__ << " initial read of " << int(ndev) | |
748 | << ": 0x" << std::hex << off << "~" << len | |
749 | << std::dec << ": different then re-read " << dendl; | |
750 | logger->inc(l_bluefs_read_zeros_errors, 1); | |
751 | // second read is probably better | |
752 | memcpy(buf, &data_reread[0], len); | |
753 | } | |
754 | } | |
755 | return r; | |
756 | } | |
757 | ||
7c673cae FG |
758 | int BlueFS::mount() |
759 | { | |
760 | dout(1) << __func__ << dendl; | |
761 | ||
762 | int r = _open_super(); | |
763 | if (r < 0) { | |
764 | derr << __func__ << " failed to open super: " << cpp_strerror(r) << dendl; | |
765 | goto out; | |
766 | } | |
767 | ||
9f95a23c TL |
768 | // set volume selector if not provided before/outside |
769 | if (vselector == nullptr) { | |
770 | vselector.reset( | |
771 | new OriginalVolumeSelector( | |
772 | get_block_device_size(BlueFS::BDEV_WAL) * 95 / 100, | |
773 | get_block_device_size(BlueFS::BDEV_DB) * 95 / 100, | |
774 | get_block_device_size(BlueFS::BDEV_SLOW) * 95 / 100)); | |
775 | } | |
776 | ||
7c673cae | 777 | _init_alloc(); |
494da23a | 778 | _init_logger(); |
7c673cae | 779 | |
11fdf7f2 | 780 | r = _replay(false, false); |
7c673cae FG |
781 | if (r < 0) { |
782 | derr << __func__ << " failed to replay log: " << cpp_strerror(r) << dendl; | |
783 | _stop_alloc(); | |
784 | goto out; | |
785 | } | |
786 | ||
787 | // init freelist | |
788 | for (auto& p : file_map) { | |
789 | dout(30) << __func__ << " noting alloc for " << p.second->fnode << dendl; | |
790 | for (auto& q : p.second->fnode.extents) { | |
f67539c2 TL |
791 | bool is_shared = is_shared_alloc(q.bdev); |
792 | ceph_assert(!is_shared || (is_shared && shared_alloc)); | |
793 | if (is_shared && shared_alloc->need_init && shared_alloc->a) { | |
794 | shared_alloc->bluefs_used += q.length; | |
795 | alloc[q.bdev]->init_rm_free(q.offset, q.length); | |
796 | } else if (!is_shared) { | |
797 | alloc[q.bdev]->init_rm_free(q.offset, q.length); | |
798 | } | |
7c673cae FG |
799 | } |
800 | } | |
f67539c2 TL |
801 | if (shared_alloc) { |
802 | shared_alloc->need_init = false; | |
803 | dout(1) << __func__ << " shared_bdev_used = " | |
804 | << shared_alloc->bluefs_used << dendl; | |
805 | } else { | |
806 | dout(1) << __func__ << " shared bdev not used" | |
807 | << dendl; | |
808 | } | |
7c673cae FG |
809 | |
810 | // set up the log for future writes | |
811 | log_writer = _create_writer(_get_file(1)); | |
11fdf7f2 | 812 | ceph_assert(log_writer->file->fnode.ino == 1); |
7c673cae FG |
813 | log_writer->pos = log_writer->file->fnode.size; |
814 | dout(10) << __func__ << " log write pos set to 0x" | |
815 | << std::hex << log_writer->pos << std::dec | |
816 | << dendl; | |
817 | ||
7c673cae FG |
818 | return 0; |
819 | ||
820 | out: | |
821 | super = bluefs_super_t(); | |
822 | return r; | |
823 | } | |
824 | ||
9f95a23c TL |
825 | int BlueFS::maybe_verify_layout(const bluefs_layout_t& layout) const |
826 | { | |
827 | if (super.memorized_layout) { | |
828 | if (layout == *super.memorized_layout) { | |
829 | dout(10) << __func__ << " bluefs layout verified positively" << dendl; | |
830 | } else { | |
831 | derr << __func__ << " memorized layout doesn't fit current one" << dendl; | |
832 | return -EIO; | |
833 | } | |
834 | } else { | |
835 | dout(10) << __func__ << " no memorized_layout in bluefs superblock" | |
836 | << dendl; | |
837 | } | |
838 | ||
839 | return 0; | |
840 | } | |
841 | ||
1911f103 | 842 | void BlueFS::umount(bool avoid_compact) |
7c673cae FG |
843 | { |
844 | dout(1) << __func__ << dendl; | |
845 | ||
1911f103 | 846 | sync_metadata(avoid_compact); |
7c673cae FG |
847 | |
848 | _close_writer(log_writer); | |
849 | log_writer = NULL; | |
850 | ||
9f95a23c | 851 | vselector.reset(nullptr); |
7c673cae FG |
852 | _stop_alloc(); |
853 | file_map.clear(); | |
854 | dir_map.clear(); | |
855 | super = bluefs_super_t(); | |
856 | log_t.clear(); | |
857 | _shutdown_logger(); | |
858 | } | |
859 | ||
9f95a23c | 860 | int BlueFS::prepare_new_device(int id, const bluefs_layout_t& layout) |
7c673cae | 861 | { |
11fdf7f2 TL |
862 | dout(1) << __func__ << dendl; |
863 | ||
864 | if(id == BDEV_NEWDB) { | |
865 | int new_log_dev_cur = BDEV_WAL; | |
866 | int new_log_dev_next = BDEV_WAL; | |
867 | if (!bdev[BDEV_WAL]) { | |
868 | new_log_dev_cur = BDEV_NEWDB; | |
869 | new_log_dev_next = BDEV_DB; | |
870 | } | |
9f95a23c | 871 | _rewrite_log_and_layout_sync(false, |
11fdf7f2 TL |
872 | BDEV_NEWDB, |
873 | new_log_dev_cur, | |
874 | new_log_dev_next, | |
9f95a23c TL |
875 | RENAME_DB2SLOW, |
876 | layout); | |
11fdf7f2 TL |
877 | //} |
878 | } else if(id == BDEV_NEWWAL) { | |
9f95a23c TL |
879 | _rewrite_log_and_layout_sync(false, |
880 | BDEV_DB, | |
881 | BDEV_NEWWAL, | |
882 | BDEV_WAL, | |
883 | REMOVE_WAL, | |
884 | layout); | |
11fdf7f2 TL |
885 | } else { |
886 | assert(false); | |
887 | } | |
888 | return 0; | |
889 | } | |
890 | ||
891 | void BlueFS::collect_metadata(map<string,string> *pm, unsigned skip_bdev_id) | |
892 | { | |
893 | if (skip_bdev_id != BDEV_DB && bdev[BDEV_DB]) | |
7c673cae FG |
894 | bdev[BDEV_DB]->collect_metadata("bluefs_db_", pm); |
895 | if (bdev[BDEV_WAL]) | |
896 | bdev[BDEV_WAL]->collect_metadata("bluefs_wal_", pm); | |
11fdf7f2 TL |
897 | } |
898 | ||
899 | void BlueFS::get_devices(set<string> *ls) | |
900 | { | |
901 | for (unsigned i = 0; i < MAX_BDEV; ++i) { | |
902 | if (bdev[i]) { | |
903 | bdev[i]->get_devices(ls); | |
904 | } | |
905 | } | |
7c673cae FG |
906 | } |
907 | ||
908 | int BlueFS::fsck() | |
909 | { | |
11fdf7f2 | 910 | std::lock_guard l(lock); |
7c673cae FG |
911 | dout(1) << __func__ << dendl; |
912 | // hrm, i think we check everything on mount... | |
913 | return 0; | |
914 | } | |
915 | ||
11fdf7f2 | 916 | int BlueFS::_write_super(int dev) |
7c673cae FG |
917 | { |
918 | // build superblock | |
919 | bufferlist bl; | |
11fdf7f2 | 920 | encode(super, bl); |
7c673cae | 921 | uint32_t crc = bl.crc32c(-1); |
11fdf7f2 | 922 | encode(crc, bl); |
7c673cae FG |
923 | dout(10) << __func__ << " super block length(encoded): " << bl.length() << dendl; |
924 | dout(10) << __func__ << " superblock " << super.version << dendl; | |
925 | dout(10) << __func__ << " log_fnode " << super.log_fnode << dendl; | |
9f95a23c | 926 | ceph_assert_always(bl.length() <= get_super_length()); |
7c673cae FG |
927 | bl.append_zero(get_super_length() - bl.length()); |
928 | ||
11fdf7f2 | 929 | bdev[dev]->write(get_super_offset(), bl, false, WRITE_LIFE_SHORT); |
7c673cae FG |
930 | dout(20) << __func__ << " v " << super.version |
931 | << " crc 0x" << std::hex << crc | |
932 | << " offset 0x" << get_super_offset() << std::dec | |
933 | << dendl; | |
934 | return 0; | |
935 | } | |
936 | ||
937 | int BlueFS::_open_super() | |
938 | { | |
939 | dout(10) << __func__ << dendl; | |
940 | ||
941 | bufferlist bl; | |
942 | uint32_t expected_crc, crc; | |
943 | int r; | |
944 | ||
945 | // always the second block | |
946 | r = bdev[BDEV_DB]->read(get_super_offset(), get_super_length(), | |
947 | &bl, ioc[BDEV_DB], false); | |
948 | if (r < 0) | |
949 | return r; | |
950 | ||
11fdf7f2 TL |
951 | auto p = bl.cbegin(); |
952 | decode(super, p); | |
7c673cae FG |
953 | { |
954 | bufferlist t; | |
955 | t.substr_of(bl, 0, p.get_off()); | |
956 | crc = t.crc32c(-1); | |
957 | } | |
11fdf7f2 | 958 | decode(expected_crc, p); |
7c673cae FG |
959 | if (crc != expected_crc) { |
960 | derr << __func__ << " bad crc on superblock, expected 0x" | |
961 | << std::hex << expected_crc << " != actual 0x" << crc << std::dec | |
962 | << dendl; | |
963 | return -EIO; | |
964 | } | |
965 | dout(10) << __func__ << " superblock " << super.version << dendl; | |
966 | dout(10) << __func__ << " log_fnode " << super.log_fnode << dendl; | |
967 | return 0; | |
968 | } | |
969 | ||
9f95a23c TL |
970 | int BlueFS::_check_new_allocations(const bluefs_fnode_t& fnode, |
971 | size_t dev_count, | |
9f95a23c TL |
972 | boost::dynamic_bitset<uint64_t>* used_blocks) |
973 | { | |
974 | auto& fnode_extents = fnode.extents; | |
975 | for (auto e : fnode_extents) { | |
976 | auto id = e.bdev; | |
977 | bool fail = false; | |
978 | ceph_assert(id < dev_count); | |
9f95a23c TL |
979 | |
980 | apply_for_bitset_range(e.offset, e.length, alloc_size[id], used_blocks[id], | |
981 | [&](uint64_t pos, boost::dynamic_bitset<uint64_t> &bs) { | |
982 | if (bs.test(pos)) { | |
983 | fail = true; | |
984 | } | |
985 | bs.set(pos); | |
986 | } | |
987 | ); | |
988 | if (fail) { | |
989 | derr << __func__ << " invalid extent " << int(e.bdev) | |
990 | << ": 0x" << std::hex << e.offset << "~" << e.length | |
991 | << std::dec << ": duplicate reference, ino " << fnode.ino | |
992 | << dendl; | |
993 | return -EFAULT; | |
994 | } | |
995 | } | |
996 | return 0; | |
997 | } | |
998 | ||
9f95a23c TL |
999 | int BlueFS::_verify_alloc_granularity( |
1000 | __u8 id, uint64_t offset, uint64_t length, const char *op) | |
1001 | { | |
1002 | if ((offset & (alloc_size[id] - 1)) || | |
1003 | (length & (alloc_size[id] - 1))) { | |
1004 | derr << __func__ << " " << op << " of " << (int)id | |
1005 | << ":0x" << std::hex << offset << "~" << length << std::dec | |
1006 | << " does not align to alloc_size 0x" | |
1007 | << std::hex << alloc_size[id] << std::dec << dendl; | |
1008 | // be helpful | |
1009 | auto need = alloc_size[id]; | |
1010 | while (need && ((offset & (need - 1)) || | |
1011 | (length & (need - 1)))) { | |
1012 | need >>= 1; | |
1013 | } | |
1014 | if (need) { | |
1015 | const char *which; | |
1016 | if (id == BDEV_SLOW || | |
1017 | (id == BDEV_DB && !bdev[BDEV_SLOW])) { | |
1018 | which = "bluefs_shared_alloc_size"; | |
1019 | } else { | |
1020 | which = "bluefs_alloc_size"; | |
1021 | } | |
1022 | derr << "work-around by setting " << which << " = " << need | |
1023 | << " for this OSD" << dendl; | |
1024 | } | |
1025 | return -EFAULT; | |
1026 | } | |
1027 | return 0; | |
1028 | } | |
1029 | ||
11fdf7f2 | 1030 | int BlueFS::_replay(bool noop, bool to_stdout) |
7c673cae FG |
1031 | { |
1032 | dout(10) << __func__ << (noop ? " NO-OP" : "") << dendl; | |
1033 | ino_last = 1; // by the log | |
1034 | log_seq = 0; | |
1035 | ||
1036 | FileRef log_file; | |
11fdf7f2 | 1037 | log_file = _get_file(1); |
9f95a23c | 1038 | |
f67539c2 | 1039 | log_file->fnode = super.log_fnode; |
11fdf7f2 | 1040 | if (!noop) { |
9f95a23c | 1041 | log_file->vselector_hint = |
f6b5b4d7 | 1042 | vselector->get_hint_for_log(); |
7c673cae | 1043 | } else { |
11fdf7f2 TL |
1044 | // do not use fnode from superblock in 'noop' mode - log_file's one should |
1045 | // be fine and up-to-date | |
1046 | ceph_assert(log_file->fnode.ino == 1); | |
1047 | ceph_assert(log_file->fnode.extents.size() != 0); | |
7c673cae | 1048 | } |
7c673cae | 1049 | dout(10) << __func__ << " log_fnode " << super.log_fnode << dendl; |
11fdf7f2 TL |
1050 | if (unlikely(to_stdout)) { |
1051 | std::cout << " log_fnode " << super.log_fnode << std::endl; | |
1052 | } | |
7c673cae FG |
1053 | |
1054 | FileReader *log_reader = new FileReader( | |
1055 | log_file, cct->_conf->bluefs_max_prefetch, | |
1056 | false, // !random | |
1057 | true); // ignore eof | |
9f95a23c TL |
1058 | |
1059 | bool seen_recs = false; | |
1060 | ||
1061 | boost::dynamic_bitset<uint64_t> used_blocks[MAX_BDEV]; | |
9f95a23c | 1062 | |
f67539c2 TL |
1063 | if (!noop) { |
1064 | if (cct->_conf->bluefs_log_replay_check_allocations) { | |
1065 | for (size_t i = 0; i < MAX_BDEV; ++i) { | |
1066 | if (alloc_size[i] != 0 && bdev[i] != nullptr) { | |
1067 | used_blocks[i].resize(round_up_to(bdev[i]->get_size(), alloc_size[i]) / alloc_size[i]); | |
1068 | } | |
9f95a23c TL |
1069 | } |
1070 | } | |
1071 | } | |
1072 | ||
1073 | bool first_log_check = true; | |
1074 | ||
7c673cae | 1075 | while (true) { |
11fdf7f2 | 1076 | ceph_assert((log_reader->buf.pos & ~super.block_mask()) == 0); |
7c673cae FG |
1077 | uint64_t pos = log_reader->buf.pos; |
1078 | uint64_t read_pos = pos; | |
1079 | bufferlist bl; | |
1080 | { | |
f67539c2 | 1081 | int r = _read(log_reader, read_pos, super.block_size, |
7c673cae | 1082 | &bl, NULL); |
f6b5b4d7 TL |
1083 | if (r != (int)super.block_size && cct->_conf->bluefs_replay_recovery) { |
1084 | r += do_replay_recovery_read(log_reader, pos, read_pos + r, super.block_size - r, &bl); | |
1085 | } | |
1086 | assert(r == (int)super.block_size); | |
7c673cae FG |
1087 | read_pos += r; |
1088 | } | |
1089 | uint64_t more = 0; | |
1090 | uint64_t seq; | |
1091 | uuid_d uuid; | |
1092 | { | |
11fdf7f2 | 1093 | auto p = bl.cbegin(); |
7c673cae FG |
1094 | __u8 a, b; |
1095 | uint32_t len; | |
11fdf7f2 TL |
1096 | decode(a, p); |
1097 | decode(b, p); | |
1098 | decode(len, p); | |
1099 | decode(uuid, p); | |
1100 | decode(seq, p); | |
7c673cae | 1101 | if (len + 6 > bl.length()) { |
11fdf7f2 | 1102 | more = round_up_to(len + 6 - bl.length(), super.block_size); |
7c673cae FG |
1103 | } |
1104 | } | |
1105 | if (uuid != super.uuid) { | |
9f95a23c TL |
1106 | if (seen_recs) { |
1107 | dout(10) << __func__ << " 0x" << std::hex << pos << std::dec | |
1108 | << ": stop: uuid " << uuid << " != super.uuid " << super.uuid | |
1109 | << dendl; | |
1110 | } else { | |
1111 | derr << __func__ << " 0x" << std::hex << pos << std::dec | |
1112 | << ": stop: uuid " << uuid << " != super.uuid " << super.uuid | |
1113 | << ", block dump: \n"; | |
1114 | bufferlist t; | |
1115 | t.substr_of(bl, 0, super.block_size); | |
1116 | t.hexdump(*_dout); | |
1117 | *_dout << dendl; | |
1118 | } | |
7c673cae FG |
1119 | break; |
1120 | } | |
1121 | if (seq != log_seq + 1) { | |
9f95a23c TL |
1122 | if (seen_recs) { |
1123 | dout(10) << __func__ << " 0x" << std::hex << pos << std::dec | |
1124 | << ": stop: seq " << seq << " != expected " << log_seq + 1 | |
1125 | << dendl;; | |
1126 | } else { | |
1127 | derr << __func__ << " 0x" << std::hex << pos << std::dec | |
1128 | << ": stop: seq " << seq << " != expected " << log_seq + 1 | |
1129 | << dendl;; | |
1130 | } | |
7c673cae FG |
1131 | break; |
1132 | } | |
1133 | if (more) { | |
1134 | dout(20) << __func__ << " need 0x" << std::hex << more << std::dec | |
1135 | << " more bytes" << dendl; | |
1136 | bufferlist t; | |
f67539c2 | 1137 | int r = _read(log_reader, read_pos, more, &t, NULL); |
7c673cae | 1138 | if (r < (int)more) { |
f6b5b4d7 TL |
1139 | dout(10) << __func__ << " 0x" << std::hex << pos |
1140 | << ": stop: len is 0x" << bl.length() + more << std::dec | |
1141 | << ", which is past eof" << dendl; | |
1142 | if (cct->_conf->bluefs_replay_recovery) { | |
1143 | //try to search for more data | |
1144 | r += do_replay_recovery_read(log_reader, pos, read_pos + r, more - r, &t); | |
1145 | if (r < (int)more) { | |
1146 | //in normal mode we must read r==more, for recovery it is too strict | |
1147 | break; | |
1148 | } | |
1149 | } | |
7c673cae | 1150 | } |
11fdf7f2 | 1151 | ceph_assert(r == (int)more); |
7c673cae FG |
1152 | bl.claim_append(t); |
1153 | read_pos += r; | |
1154 | } | |
1155 | bluefs_transaction_t t; | |
1156 | try { | |
11fdf7f2 TL |
1157 | auto p = bl.cbegin(); |
1158 | decode(t, p); | |
522d829b | 1159 | seen_recs = true; |
7c673cae | 1160 | } |
f67539c2 | 1161 | catch (ceph::buffer::error& e) { |
522d829b TL |
1162 | // Multi-block transactions might be incomplete due to unexpected |
1163 | // power off. Hence let's treat that as a regular stop condition. | |
1164 | if (seen_recs && more) { | |
1165 | dout(10) << __func__ << " 0x" << std::hex << pos << std::dec | |
1166 | << ": stop: failed to decode: " << e.what() | |
1167 | << dendl; | |
1168 | } else { | |
1169 | derr << __func__ << " 0x" << std::hex << pos << std::dec | |
1170 | << ": stop: failed to decode: " << e.what() | |
1171 | << dendl; | |
1172 | delete log_reader; | |
1173 | return -EIO; | |
1174 | } | |
1175 | break; | |
7c673cae | 1176 | } |
11fdf7f2 | 1177 | ceph_assert(seq == t.seq); |
7c673cae FG |
1178 | dout(10) << __func__ << " 0x" << std::hex << pos << std::dec |
1179 | << ": " << t << dendl; | |
11fdf7f2 TL |
1180 | if (unlikely(to_stdout)) { |
1181 | std::cout << " 0x" << std::hex << pos << std::dec | |
1182 | << ": " << t << std::endl; | |
1183 | } | |
7c673cae | 1184 | |
11fdf7f2 | 1185 | auto p = t.op_bl.cbegin(); |
7c673cae FG |
1186 | while (!p.end()) { |
1187 | __u8 op; | |
11fdf7f2 | 1188 | decode(op, p); |
7c673cae FG |
1189 | switch (op) { |
1190 | ||
1191 | case bluefs_transaction_t::OP_INIT: | |
1192 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec | |
1193 | << ": op_init" << dendl; | |
11fdf7f2 TL |
1194 | if (unlikely(to_stdout)) { |
1195 | std::cout << " 0x" << std::hex << pos << std::dec | |
1196 | << ": op_init" << std::endl; | |
1197 | } | |
1198 | ||
1199 | ceph_assert(t.seq == 1); | |
7c673cae FG |
1200 | break; |
1201 | ||
1202 | case bluefs_transaction_t::OP_JUMP: | |
1203 | { | |
1204 | uint64_t next_seq; | |
1205 | uint64_t offset; | |
11fdf7f2 TL |
1206 | decode(next_seq, p); |
1207 | decode(offset, p); | |
7c673cae FG |
1208 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1209 | << ": op_jump seq " << next_seq | |
1210 | << " offset 0x" << std::hex << offset << std::dec << dendl; | |
11fdf7f2 TL |
1211 | if (unlikely(to_stdout)) { |
1212 | std::cout << " 0x" << std::hex << pos << std::dec | |
1213 | << ": op_jump seq " << next_seq | |
1214 | << " offset 0x" << std::hex << offset << std::dec | |
1215 | << std::endl; | |
1216 | } | |
1217 | ||
1218 | ceph_assert(next_seq >= log_seq); | |
7c673cae FG |
1219 | log_seq = next_seq - 1; // we will increment it below |
1220 | uint64_t skip = offset - read_pos; | |
1221 | if (skip) { | |
1222 | bufferlist junk; | |
f67539c2 | 1223 | int r = _read(log_reader, read_pos, skip, &junk, |
7c673cae FG |
1224 | NULL); |
1225 | if (r != (int)skip) { | |
1226 | dout(10) << __func__ << " 0x" << std::hex << read_pos | |
1227 | << ": stop: failed to skip to " << offset | |
1228 | << std::dec << dendl; | |
11fdf7f2 | 1229 | ceph_abort_msg("problem with op_jump"); |
7c673cae FG |
1230 | } |
1231 | } | |
1232 | } | |
1233 | break; | |
1234 | ||
1235 | case bluefs_transaction_t::OP_JUMP_SEQ: | |
1236 | { | |
1237 | uint64_t next_seq; | |
11fdf7f2 | 1238 | decode(next_seq, p); |
7c673cae FG |
1239 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1240 | << ": op_jump_seq " << next_seq << dendl; | |
11fdf7f2 TL |
1241 | if (unlikely(to_stdout)) { |
1242 | std::cout << " 0x" << std::hex << pos << std::dec | |
1243 | << ": op_jump_seq " << next_seq << std::endl; | |
1244 | } | |
1245 | ||
1246 | ceph_assert(next_seq >= log_seq); | |
7c673cae FG |
1247 | log_seq = next_seq - 1; // we will increment it below |
1248 | } | |
1249 | break; | |
1250 | ||
1251 | case bluefs_transaction_t::OP_ALLOC_ADD: | |
f67539c2 | 1252 | // LEGACY, do nothing but read params |
7c673cae | 1253 | { |
f67539c2 TL |
1254 | __u8 id; |
1255 | uint64_t offset, length; | |
1256 | decode(id, p); | |
1257 | decode(offset, p); | |
1258 | decode(length, p); | |
1259 | } | |
7c673cae FG |
1260 | break; |
1261 | ||
1262 | case bluefs_transaction_t::OP_ALLOC_RM: | |
f67539c2 | 1263 | // LEGACY, do nothing but read params |
7c673cae | 1264 | { |
f67539c2 TL |
1265 | __u8 id; |
1266 | uint64_t offset, length; | |
1267 | decode(id, p); | |
1268 | decode(offset, p); | |
1269 | decode(length, p); | |
1270 | } | |
1271 | break; | |
7c673cae FG |
1272 | |
1273 | case bluefs_transaction_t::OP_DIR_LINK: | |
1274 | { | |
1275 | string dirname, filename; | |
1276 | uint64_t ino; | |
11fdf7f2 TL |
1277 | decode(dirname, p); |
1278 | decode(filename, p); | |
1279 | decode(ino, p); | |
7c673cae FG |
1280 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1281 | << ": op_dir_link " << " " << dirname << "/" << filename | |
1282 | << " to " << ino | |
1283 | << dendl; | |
11fdf7f2 TL |
1284 | if (unlikely(to_stdout)) { |
1285 | std::cout << " 0x" << std::hex << pos << std::dec | |
1286 | << ": op_dir_link " << " " << dirname << "/" << filename | |
1287 | << " to " << ino | |
1288 | << std::endl; | |
1289 | } | |
1290 | ||
7c673cae FG |
1291 | if (!noop) { |
1292 | FileRef file = _get_file(ino); | |
11fdf7f2 | 1293 | ceph_assert(file->fnode.ino); |
7c673cae | 1294 | map<string,DirRef>::iterator q = dir_map.find(dirname); |
11fdf7f2 | 1295 | ceph_assert(q != dir_map.end()); |
7c673cae | 1296 | map<string,FileRef>::iterator r = q->second->file_map.find(filename); |
11fdf7f2 | 1297 | ceph_assert(r == q->second->file_map.end()); |
9f95a23c TL |
1298 | |
1299 | vselector->sub_usage(file->vselector_hint, file->fnode); | |
1300 | file->vselector_hint = | |
1301 | vselector->get_hint_by_dir(dirname); | |
1302 | vselector->add_usage(file->vselector_hint, file->fnode); | |
1303 | ||
7c673cae FG |
1304 | q->second->file_map[filename] = file; |
1305 | ++file->refs; | |
1306 | } | |
1307 | } | |
1308 | break; | |
1309 | ||
1310 | case bluefs_transaction_t::OP_DIR_UNLINK: | |
1311 | { | |
1312 | string dirname, filename; | |
11fdf7f2 TL |
1313 | decode(dirname, p); |
1314 | decode(filename, p); | |
7c673cae FG |
1315 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1316 | << ": op_dir_unlink " << " " << dirname << "/" << filename | |
1317 | << dendl; | |
11fdf7f2 TL |
1318 | if (unlikely(to_stdout)) { |
1319 | std::cout << " 0x" << std::hex << pos << std::dec | |
1320 | << ": op_dir_unlink " << " " << dirname << "/" << filename | |
1321 | << std::endl; | |
1322 | } | |
1323 | ||
7c673cae FG |
1324 | if (!noop) { |
1325 | map<string,DirRef>::iterator q = dir_map.find(dirname); | |
11fdf7f2 | 1326 | ceph_assert(q != dir_map.end()); |
7c673cae | 1327 | map<string,FileRef>::iterator r = q->second->file_map.find(filename); |
11fdf7f2 TL |
1328 | ceph_assert(r != q->second->file_map.end()); |
1329 | ceph_assert(r->second->refs > 0); | |
7c673cae FG |
1330 | --r->second->refs; |
1331 | q->second->file_map.erase(r); | |
1332 | } | |
1333 | } | |
1334 | break; | |
1335 | ||
1336 | case bluefs_transaction_t::OP_DIR_CREATE: | |
1337 | { | |
1338 | string dirname; | |
11fdf7f2 | 1339 | decode(dirname, p); |
7c673cae FG |
1340 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1341 | << ": op_dir_create " << dirname << dendl; | |
11fdf7f2 TL |
1342 | if (unlikely(to_stdout)) { |
1343 | std::cout << " 0x" << std::hex << pos << std::dec | |
1344 | << ": op_dir_create " << dirname << std::endl; | |
1345 | } | |
1346 | ||
7c673cae FG |
1347 | if (!noop) { |
1348 | map<string,DirRef>::iterator q = dir_map.find(dirname); | |
11fdf7f2 | 1349 | ceph_assert(q == dir_map.end()); |
9f95a23c | 1350 | dir_map[dirname] = ceph::make_ref<Dir>(); |
7c673cae FG |
1351 | } |
1352 | } | |
1353 | break; | |
1354 | ||
1355 | case bluefs_transaction_t::OP_DIR_REMOVE: | |
1356 | { | |
1357 | string dirname; | |
11fdf7f2 | 1358 | decode(dirname, p); |
7c673cae FG |
1359 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1360 | << ": op_dir_remove " << dirname << dendl; | |
11fdf7f2 TL |
1361 | if (unlikely(to_stdout)) { |
1362 | std::cout << " 0x" << std::hex << pos << std::dec | |
1363 | << ": op_dir_remove " << dirname << std::endl; | |
1364 | } | |
1365 | ||
7c673cae FG |
1366 | if (!noop) { |
1367 | map<string,DirRef>::iterator q = dir_map.find(dirname); | |
11fdf7f2 TL |
1368 | ceph_assert(q != dir_map.end()); |
1369 | ceph_assert(q->second->file_map.empty()); | |
7c673cae FG |
1370 | dir_map.erase(q); |
1371 | } | |
1372 | } | |
1373 | break; | |
1374 | ||
1375 | case bluefs_transaction_t::OP_FILE_UPDATE: | |
1376 | { | |
1377 | bluefs_fnode_t fnode; | |
11fdf7f2 | 1378 | decode(fnode, p); |
7c673cae | 1379 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
9f95a23c | 1380 | << ": op_file_update " << " " << fnode << " " << dendl; |
11fdf7f2 TL |
1381 | if (unlikely(to_stdout)) { |
1382 | std::cout << " 0x" << std::hex << pos << std::dec | |
1383 | << ": op_file_update " << " " << fnode << std::endl; | |
1384 | } | |
9f95a23c | 1385 | if (!noop) { |
7c673cae | 1386 | FileRef f = _get_file(fnode.ino); |
9f95a23c TL |
1387 | if (cct->_conf->bluefs_log_replay_check_allocations) { |
1388 | // check initial log layout | |
1389 | if (first_log_check) { | |
1390 | first_log_check = false; | |
1391 | int r = _check_new_allocations(log_file->fnode, | |
f67539c2 | 1392 | MAX_BDEV, used_blocks); |
9f95a23c TL |
1393 | if (r < 0) { |
1394 | return r; | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | auto& fnode_extents = f->fnode.extents; | |
1399 | for (auto e : fnode_extents) { | |
1400 | auto id = e.bdev; | |
1401 | if (int r = _verify_alloc_granularity(id, e.offset, e.length, | |
1402 | "OP_FILE_UPDATE"); r < 0) { | |
1403 | return r; | |
1404 | } | |
1405 | apply_for_bitset_range(e.offset, e.length, alloc_size[id], | |
1406 | used_blocks[id], | |
1407 | [&](uint64_t pos, boost::dynamic_bitset<uint64_t> &bs) { | |
1408 | ceph_assert(bs.test(pos)); | |
1409 | bs.reset(pos); | |
1410 | } | |
1411 | ); | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | if (fnode.ino != 1) { | |
1416 | vselector->sub_usage(f->vselector_hint, f->fnode); | |
1417 | } | |
1418 | f->fnode = fnode; | |
1419 | if (fnode.ino != 1) { | |
1420 | vselector->add_usage(f->vselector_hint, f->fnode); | |
1421 | } | |
1422 | ||
7c673cae FG |
1423 | if (fnode.ino > ino_last) { |
1424 | ino_last = fnode.ino; | |
1425 | } | |
9f95a23c TL |
1426 | if (cct->_conf->bluefs_log_replay_check_allocations) { |
1427 | int r = _check_new_allocations(f->fnode, | |
f67539c2 | 1428 | MAX_BDEV, used_blocks); |
9f95a23c TL |
1429 | if (r < 0) { |
1430 | return r; | |
1431 | } | |
1432 | } | |
522d829b TL |
1433 | } else if (noop && fnode.ino == 1) { |
1434 | FileRef f = _get_file(fnode.ino); | |
1435 | f->fnode = fnode; | |
7c673cae | 1436 | } |
9f95a23c | 1437 | } |
7c673cae FG |
1438 | break; |
1439 | ||
1440 | case bluefs_transaction_t::OP_FILE_REMOVE: | |
1441 | { | |
1442 | uint64_t ino; | |
11fdf7f2 | 1443 | decode(ino, p); |
7c673cae FG |
1444 | dout(20) << __func__ << " 0x" << std::hex << pos << std::dec |
1445 | << ": op_file_remove " << ino << dendl; | |
11fdf7f2 TL |
1446 | if (unlikely(to_stdout)) { |
1447 | std::cout << " 0x" << std::hex << pos << std::dec | |
1448 | << ": op_file_remove " << ino << std::endl; | |
1449 | } | |
1450 | ||
9f95a23c TL |
1451 | if (!noop) { |
1452 | auto p = file_map.find(ino); | |
1453 | ceph_assert(p != file_map.end()); | |
1454 | vselector->sub_usage(p->second->vselector_hint, p->second->fnode); | |
1455 | if (cct->_conf->bluefs_log_replay_check_allocations) { | |
1456 | auto& fnode_extents = p->second->fnode.extents; | |
1457 | for (auto e : fnode_extents) { | |
1458 | auto id = e.bdev; | |
1459 | bool fail = false; | |
9f95a23c TL |
1460 | |
1461 | apply_for_bitset_range(e.offset, e.length, alloc_size[id], used_blocks[id], | |
1462 | [&](uint64_t pos, boost::dynamic_bitset<uint64_t> &bs) { | |
1463 | if (!bs.test(pos)) { | |
1464 | fail = true; | |
1465 | } | |
1466 | bs.reset(pos); | |
1467 | } | |
1468 | ); | |
1469 | if (fail) { | |
1470 | derr << __func__ << " invalid extent " << int(id) | |
1471 | << ": 0x" << std::hex << e.offset << "~" << e.length | |
1472 | << std::dec | |
1473 | << ": not in use but is allocated for removed ino " << ino | |
1474 | << dendl; | |
1475 | return -EFAULT; | |
1476 | } | |
1477 | } | |
1478 | } | |
1479 | file_map.erase(p); | |
1480 | } | |
1481 | } | |
7c673cae FG |
1482 | break; |
1483 | ||
1484 | default: | |
1485 | derr << __func__ << " 0x" << std::hex << pos << std::dec | |
1486 | << ": stop: unrecognized op " << (int)op << dendl; | |
1487 | delete log_reader; | |
1488 | return -EIO; | |
1489 | } | |
1490 | } | |
11fdf7f2 | 1491 | ceph_assert(p.end()); |
7c673cae FG |
1492 | |
1493 | // we successfully replayed the transaction; bump the seq and log size | |
1494 | ++log_seq; | |
1495 | log_file->fnode.size = log_reader->buf.pos; | |
1496 | } | |
f67539c2 TL |
1497 | if (!noop) { |
1498 | vselector->add_usage(log_file->vselector_hint, log_file->fnode); | |
1499 | } | |
9f95a23c TL |
1500 | if (!noop && first_log_check && |
1501 | cct->_conf->bluefs_log_replay_check_allocations) { | |
1502 | int r = _check_new_allocations(log_file->fnode, | |
f67539c2 | 1503 | MAX_BDEV, used_blocks); |
9f95a23c TL |
1504 | if (r < 0) { |
1505 | return r; | |
1506 | } | |
1507 | } | |
7c673cae FG |
1508 | |
1509 | dout(10) << __func__ << " log file size was 0x" | |
1510 | << std::hex << log_file->fnode.size << std::dec << dendl; | |
11fdf7f2 TL |
1511 | if (unlikely(to_stdout)) { |
1512 | std::cout << " log file size was 0x" | |
1513 | << std::hex << log_file->fnode.size << std::dec << std::endl; | |
1514 | } | |
1515 | ||
7c673cae FG |
1516 | delete log_reader; |
1517 | ||
1518 | if (!noop) { | |
1519 | // verify file link counts are all >0 | |
1520 | for (auto& p : file_map) { | |
1521 | if (p.second->refs == 0 && | |
1522 | p.second->fnode.ino > 1) { | |
1523 | derr << __func__ << " file with link count 0: " << p.second->fnode | |
1524 | << dendl; | |
1525 | return -EIO; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | dout(10) << __func__ << " done" << dendl; | |
1531 | return 0; | |
1532 | } | |
1533 | ||
11fdf7f2 TL |
1534 | int BlueFS::log_dump() |
1535 | { | |
1536 | // only dump log file's content | |
f67539c2 TL |
1537 | ceph_assert(log_writer == nullptr && "cannot log_dump on mounted BlueFS"); |
1538 | int r = _open_super(); | |
11fdf7f2 | 1539 | if (r < 0) { |
f67539c2 | 1540 | derr << __func__ << " failed to open super: " << cpp_strerror(r) << dendl; |
11fdf7f2 TL |
1541 | return r; |
1542 | } | |
f67539c2 TL |
1543 | _init_logger(); |
1544 | r = _replay(true, true); | |
1545 | if (r < 0) { | |
1546 | derr << __func__ << " failed to replay log: " << cpp_strerror(r) << dendl; | |
1547 | } | |
1548 | _shutdown_logger(); | |
1549 | super = bluefs_super_t(); | |
1550 | return r; | |
11fdf7f2 TL |
1551 | } |
1552 | ||
1553 | int BlueFS::device_migrate_to_existing( | |
1554 | CephContext *cct, | |
1555 | const set<int>& devs_source, | |
9f95a23c TL |
1556 | int dev_target, |
1557 | const bluefs_layout_t& layout) | |
11fdf7f2 TL |
1558 | { |
1559 | vector<byte> buf; | |
1560 | bool buffered = cct->_conf->bluefs_buffered_io; | |
1561 | ||
eafe8130 TL |
1562 | dout(10) << __func__ << " devs_source " << devs_source |
1563 | << " dev_target " << dev_target << dendl; | |
11fdf7f2 TL |
1564 | assert(dev_target < (int)MAX_BDEV); |
1565 | ||
1566 | int flags = 0; | |
1567 | flags |= devs_source.count(BDEV_DB) ? | |
1568 | (REMOVE_DB | RENAME_SLOW2DB) : 0; | |
1569 | flags |= devs_source.count(BDEV_WAL) ? REMOVE_WAL : 0; | |
1570 | int dev_target_new = dev_target; | |
1571 | ||
1572 | // Slow device without separate DB one is addressed via BDEV_DB | |
1573 | // Hence need renaming. | |
1574 | if ((flags & REMOVE_DB) && dev_target == BDEV_SLOW) { | |
1575 | dev_target_new = BDEV_DB; | |
1576 | dout(0) << __func__ << " super to be written to " << dev_target << dendl; | |
1577 | } | |
1578 | ||
9f95a23c | 1579 | for (auto& [ino, file_ref] : file_map) { |
11fdf7f2 | 1580 | //do not copy log |
9f95a23c | 1581 | if (file_ref->fnode.ino == 1) { |
11fdf7f2 TL |
1582 | continue; |
1583 | } | |
9f95a23c | 1584 | dout(10) << __func__ << " " << ino << " " << file_ref->fnode << dendl; |
eafe8130 | 1585 | |
9f95a23c | 1586 | auto& fnode_extents = file_ref->fnode.extents; |
11fdf7f2 | 1587 | |
9f95a23c TL |
1588 | bool rewrite = std::any_of( |
1589 | fnode_extents.begin(), | |
1590 | fnode_extents.end(), | |
1591 | [=](auto& ext) { | |
1592 | return ext.bdev != dev_target && devs_source.count(ext.bdev); | |
1593 | }); | |
eafe8130 TL |
1594 | if (rewrite) { |
1595 | dout(10) << __func__ << " migrating" << dendl; | |
1596 | ||
1597 | // read entire file | |
1598 | bufferlist bl; | |
1599 | for (auto old_ext : fnode_extents) { | |
1600 | buf.resize(old_ext.length); | |
1601 | int r = bdev[old_ext.bdev]->read_random( | |
1602 | old_ext.offset, | |
1603 | old_ext.length, | |
1604 | (char*)&buf.at(0), | |
1605 | buffered); | |
1606 | if (r != 0) { | |
1607 | derr << __func__ << " failed to read 0x" << std::hex | |
1608 | << old_ext.offset << "~" << old_ext.length << std::dec | |
1609 | << " from " << (int)dev_target << dendl; | |
1610 | return -EIO; | |
1611 | } | |
1612 | bl.append((char*)&buf[0], old_ext.length); | |
1613 | } | |
11fdf7f2 | 1614 | |
eafe8130 TL |
1615 | // write entire file |
1616 | PExtentVector extents; | |
1617 | auto l = _allocate_without_fallback(dev_target, bl.length(), &extents); | |
1618 | if (l < 0) { | |
1619 | derr << __func__ << " unable to allocate len 0x" << std::hex | |
1620 | << bl.length() << std::dec << " from " << (int)dev_target | |
1621 | << ": " << cpp_strerror(l) << dendl; | |
1622 | return -ENOSPC; | |
1623 | } | |
11fdf7f2 | 1624 | |
eafe8130 TL |
1625 | uint64_t off = 0; |
1626 | for (auto& i : extents) { | |
1627 | bufferlist cur; | |
1628 | uint64_t cur_len = std::min<uint64_t>(i.length, bl.length() - off); | |
1629 | ceph_assert(cur_len > 0); | |
1630 | cur.substr_of(bl, off, cur_len); | |
1631 | int r = bdev[dev_target]->write(i.offset, cur, buffered); | |
1632 | ceph_assert(r == 0); | |
1633 | off += cur_len; | |
1634 | } | |
1635 | ||
1636 | // release old extents | |
1637 | for (auto old_ext : fnode_extents) { | |
1638 | PExtentVector to_release; | |
1639 | to_release.emplace_back(old_ext.offset, old_ext.length); | |
1640 | alloc[old_ext.bdev]->release(to_release); | |
f67539c2 TL |
1641 | if (is_shared_alloc(old_ext.bdev)) { |
1642 | shared_alloc->bluefs_used -= to_release.size(); | |
1643 | } | |
eafe8130 TL |
1644 | } |
1645 | ||
1646 | // update fnode | |
1647 | fnode_extents.clear(); | |
1648 | for (auto& i : extents) { | |
1649 | fnode_extents.emplace_back(dev_target_new, i.offset, i.length); | |
1650 | } | |
1651 | } else { | |
9f95a23c TL |
1652 | for (auto& ext : fnode_extents) { |
1653 | if (dev_target != dev_target_new && ext.bdev == dev_target) { | |
eafe8130 | 1654 | dout(20) << __func__ << " " << " ... adjusting extent 0x" |
9f95a23c | 1655 | << std::hex << ext.offset << std::dec |
eafe8130 TL |
1656 | << " bdev " << dev_target << " -> " << dev_target_new |
1657 | << dendl; | |
9f95a23c | 1658 | ext.bdev = dev_target_new; |
11fdf7f2 | 1659 | } |
11fdf7f2 TL |
1660 | } |
1661 | } | |
11fdf7f2 TL |
1662 | } |
1663 | // new logging device in the current naming scheme | |
1664 | int new_log_dev_cur = bdev[BDEV_WAL] ? | |
1665 | BDEV_WAL : | |
1666 | bdev[BDEV_DB] ? BDEV_DB : BDEV_SLOW; | |
1667 | ||
1668 | // new logging device in new naming scheme | |
1669 | int new_log_dev_next = new_log_dev_cur; | |
1670 | ||
1671 | if (devs_source.count(new_log_dev_cur)) { | |
1672 | // SLOW device is addressed via BDEV_DB too hence either WAL or DB | |
1673 | new_log_dev_next = (flags & REMOVE_WAL) || !bdev[BDEV_WAL] ? | |
1674 | BDEV_DB : | |
1675 | BDEV_WAL; | |
1676 | ||
1677 | dout(0) << __func__ << " log moved from " << new_log_dev_cur | |
1678 | << " to " << new_log_dev_next << dendl; | |
1679 | ||
1680 | new_log_dev_cur = | |
1681 | (flags & REMOVE_DB) && new_log_dev_next == BDEV_DB ? | |
1682 | BDEV_SLOW : | |
1683 | new_log_dev_next; | |
1684 | } | |
1685 | ||
9f95a23c | 1686 | _rewrite_log_and_layout_sync( |
11fdf7f2 TL |
1687 | false, |
1688 | (flags & REMOVE_DB) ? BDEV_SLOW : BDEV_DB, | |
1689 | new_log_dev_cur, | |
1690 | new_log_dev_next, | |
9f95a23c TL |
1691 | flags, |
1692 | layout); | |
11fdf7f2 TL |
1693 | return 0; |
1694 | } | |
1695 | ||
1696 | int BlueFS::device_migrate_to_new( | |
1697 | CephContext *cct, | |
1698 | const set<int>& devs_source, | |
9f95a23c TL |
1699 | int dev_target, |
1700 | const bluefs_layout_t& layout) | |
11fdf7f2 TL |
1701 | { |
1702 | vector<byte> buf; | |
1703 | bool buffered = cct->_conf->bluefs_buffered_io; | |
1704 | ||
eafe8130 TL |
1705 | dout(10) << __func__ << " devs_source " << devs_source |
1706 | << " dev_target " << dev_target << dendl; | |
11fdf7f2 TL |
1707 | assert(dev_target == (int)BDEV_NEWDB || (int)BDEV_NEWWAL); |
1708 | ||
1709 | int flags = 0; | |
1710 | ||
1711 | flags |= devs_source.count(BDEV_DB) ? | |
1712 | (!bdev[BDEV_SLOW] ? RENAME_DB2SLOW: REMOVE_DB) : | |
1713 | 0; | |
1714 | flags |= devs_source.count(BDEV_WAL) ? REMOVE_WAL : 0; | |
9f95a23c | 1715 | int dev_target_new = dev_target; //FIXME: remove, makes no sense |
11fdf7f2 TL |
1716 | |
1717 | for (auto& p : file_map) { | |
1718 | //do not copy log | |
1719 | if (p.second->fnode.ino == 1) { | |
1720 | continue; | |
1721 | } | |
eafe8130 TL |
1722 | dout(10) << __func__ << " " << p.first << " " << p.second->fnode << dendl; |
1723 | ||
11fdf7f2 TL |
1724 | auto& fnode_extents = p.second->fnode.extents; |
1725 | ||
eafe8130 | 1726 | bool rewrite = false; |
11fdf7f2 | 1727 | for (auto ext_it = fnode_extents.begin(); |
eafe8130 TL |
1728 | ext_it != p.second->fnode.extents.end(); |
1729 | ++ext_it) { | |
11fdf7f2 | 1730 | if (ext_it->bdev != dev_target && devs_source.count(ext_it->bdev)) { |
eafe8130 TL |
1731 | rewrite = true; |
1732 | break; | |
1733 | } | |
1734 | } | |
1735 | if (rewrite) { | |
1736 | dout(10) << __func__ << " migrating" << dendl; | |
1737 | ||
1738 | // read entire file | |
1739 | bufferlist bl; | |
1740 | for (auto old_ext : fnode_extents) { | |
1741 | buf.resize(old_ext.length); | |
1742 | int r = bdev[old_ext.bdev]->read_random( | |
1743 | old_ext.offset, | |
1744 | old_ext.length, | |
1745 | (char*)&buf.at(0), | |
1746 | buffered); | |
1747 | if (r != 0) { | |
1748 | derr << __func__ << " failed to read 0x" << std::hex | |
1749 | << old_ext.offset << "~" << old_ext.length << std::dec | |
1750 | << " from " << (int)dev_target << dendl; | |
1751 | return -EIO; | |
11fdf7f2 | 1752 | } |
eafe8130 TL |
1753 | bl.append((char*)&buf[0], old_ext.length); |
1754 | } | |
1755 | ||
1756 | // write entire file | |
1757 | PExtentVector extents; | |
1758 | auto l = _allocate_without_fallback(dev_target, bl.length(), &extents); | |
1759 | if (l < 0) { | |
1760 | derr << __func__ << " unable to allocate len 0x" << std::hex | |
1761 | << bl.length() << std::dec << " from " << (int)dev_target | |
1762 | << ": " << cpp_strerror(l) << dendl; | |
1763 | return -ENOSPC; | |
1764 | } | |
1765 | ||
1766 | uint64_t off = 0; | |
1767 | for (auto& i : extents) { | |
1768 | bufferlist cur; | |
1769 | uint64_t cur_len = std::min<uint64_t>(i.length, bl.length() - off); | |
1770 | ceph_assert(cur_len > 0); | |
1771 | cur.substr_of(bl, off, cur_len); | |
1772 | int r = bdev[dev_target]->write(i.offset, cur, buffered); | |
1773 | ceph_assert(r == 0); | |
1774 | off += cur_len; | |
1775 | } | |
1776 | ||
1777 | // release old extents | |
1778 | for (auto old_ext : fnode_extents) { | |
1779 | PExtentVector to_release; | |
1780 | to_release.emplace_back(old_ext.offset, old_ext.length); | |
1781 | alloc[old_ext.bdev]->release(to_release); | |
f67539c2 TL |
1782 | if (is_shared_alloc(old_ext.bdev)) { |
1783 | shared_alloc->bluefs_used -= to_release.size(); | |
1784 | } | |
eafe8130 TL |
1785 | } |
1786 | ||
1787 | // update fnode | |
1788 | fnode_extents.clear(); | |
1789 | for (auto& i : extents) { | |
1790 | fnode_extents.emplace_back(dev_target_new, i.offset, i.length); | |
11fdf7f2 TL |
1791 | } |
1792 | } | |
11fdf7f2 TL |
1793 | } |
1794 | // new logging device in the current naming scheme | |
1795 | int new_log_dev_cur = | |
1796 | bdev[BDEV_NEWWAL] ? | |
1797 | BDEV_NEWWAL : | |
1798 | bdev[BDEV_WAL] && !(flags & REMOVE_WAL) ? | |
1799 | BDEV_WAL : | |
1800 | bdev[BDEV_NEWDB] ? | |
1801 | BDEV_NEWDB : | |
1802 | bdev[BDEV_DB] && !(flags & REMOVE_DB)? | |
1803 | BDEV_DB : | |
1804 | BDEV_SLOW; | |
1805 | ||
1806 | // new logging device in new naming scheme | |
1807 | int new_log_dev_next = | |
1808 | new_log_dev_cur == BDEV_NEWWAL ? | |
1809 | BDEV_WAL : | |
1810 | new_log_dev_cur == BDEV_NEWDB ? | |
1811 | BDEV_DB : | |
1812 | new_log_dev_cur; | |
1813 | ||
1814 | int super_dev = | |
1815 | dev_target == BDEV_NEWDB ? | |
1816 | BDEV_NEWDB : | |
1817 | bdev[BDEV_DB] ? | |
1818 | BDEV_DB : | |
1819 | BDEV_SLOW; | |
1820 | ||
9f95a23c | 1821 | _rewrite_log_and_layout_sync( |
11fdf7f2 TL |
1822 | false, |
1823 | super_dev, | |
1824 | new_log_dev_cur, | |
1825 | new_log_dev_next, | |
9f95a23c TL |
1826 | flags, |
1827 | layout); | |
11fdf7f2 TL |
1828 | return 0; |
1829 | } | |
1830 | ||
7c673cae FG |
1831 | BlueFS::FileRef BlueFS::_get_file(uint64_t ino) |
1832 | { | |
1833 | auto p = file_map.find(ino); | |
1834 | if (p == file_map.end()) { | |
9f95a23c | 1835 | FileRef f = ceph::make_ref<File>(); |
7c673cae FG |
1836 | file_map[ino] = f; |
1837 | dout(30) << __func__ << " ino " << ino << " = " << f | |
1838 | << " (new)" << dendl; | |
1839 | return f; | |
1840 | } else { | |
1841 | dout(30) << __func__ << " ino " << ino << " = " << p->second << dendl; | |
1842 | return p->second; | |
1843 | } | |
1844 | } | |
1845 | ||
1846 | void BlueFS::_drop_link(FileRef file) | |
1847 | { | |
1848 | dout(20) << __func__ << " had refs " << file->refs | |
1849 | << " on " << file->fnode << dendl; | |
11fdf7f2 | 1850 | ceph_assert(file->refs > 0); |
7c673cae FG |
1851 | --file->refs; |
1852 | if (file->refs == 0) { | |
1853 | dout(20) << __func__ << " destroying " << file->fnode << dendl; | |
11fdf7f2 | 1854 | ceph_assert(file->num_reading.load() == 0); |
9f95a23c | 1855 | vselector->sub_usage(file->vselector_hint, file->fnode); |
7c673cae FG |
1856 | log_t.op_file_remove(file->fnode.ino); |
1857 | for (auto& r : file->fnode.extents) { | |
1858 | pending_release[r.bdev].insert(r.offset, r.length); | |
1859 | } | |
1860 | file_map.erase(file->fnode.ino); | |
1861 | file->deleted = true; | |
94b18763 | 1862 | |
7c673cae | 1863 | if (file->dirty_seq) { |
11fdf7f2 TL |
1864 | ceph_assert(file->dirty_seq > log_seq_stable); |
1865 | ceph_assert(dirty_files.count(file->dirty_seq)); | |
7c673cae FG |
1866 | auto it = dirty_files[file->dirty_seq].iterator_to(*file); |
1867 | dirty_files[file->dirty_seq].erase(it); | |
1868 | file->dirty_seq = 0; | |
1869 | } | |
1870 | } | |
1871 | } | |
1872 | ||
adb31ebb | 1873 | int64_t BlueFS::_read_random( |
7c673cae FG |
1874 | FileReader *h, ///< [in] read from here |
1875 | uint64_t off, ///< [in] offset | |
9f95a23c | 1876 | uint64_t len, ///< [in] this many bytes |
f67539c2 | 1877 | char *out) ///< [out] copy it here |
7c673cae | 1878 | { |
494da23a TL |
1879 | auto* buf = &h->buf; |
1880 | ||
adb31ebb | 1881 | int64_t ret = 0; |
7c673cae FG |
1882 | dout(10) << __func__ << " h " << h |
1883 | << " 0x" << std::hex << off << "~" << len << std::dec | |
1884 | << " from " << h->file->fnode << dendl; | |
1885 | ||
1886 | ++h->file->num_reading; | |
1887 | ||
1888 | if (!h->ignore_eof && | |
1889 | off + len > h->file->fnode.size) { | |
1890 | if (off > h->file->fnode.size) | |
1891 | len = 0; | |
1892 | else | |
1893 | len = h->file->fnode.size - off; | |
1894 | dout(20) << __func__ << " reaching (or past) eof, len clipped to 0x" | |
1895 | << std::hex << len << std::dec << dendl; | |
1896 | } | |
494da23a TL |
1897 | logger->inc(l_bluefs_read_random_count, 1); |
1898 | logger->inc(l_bluefs_read_random_bytes, len); | |
7c673cae | 1899 | |
494da23a | 1900 | std::shared_lock s_lock(h->lock); |
f91f0fd5 | 1901 | buf->bl.reassign_to_mempool(mempool::mempool_bluefs_file_reader); |
7c673cae | 1902 | while (len > 0) { |
494da23a TL |
1903 | if (off < buf->bl_off || off >= buf->get_buf_end()) { |
1904 | s_lock.unlock(); | |
1905 | uint64_t x_off = 0; | |
1906 | auto p = h->file->fnode.seek(off, &x_off); | |
f6b5b4d7 | 1907 | ceph_assert(p != h->file->fnode.extents.end()); |
9f95a23c | 1908 | uint64_t l = std::min(p->length - x_off, len); |
adb31ebb TL |
1909 | //hard cap to 1GB |
1910 | l = std::min(l, uint64_t(1) << 30); | |
494da23a TL |
1911 | dout(20) << __func__ << " read random 0x" |
1912 | << std::hex << x_off << "~" << l << std::dec | |
1913 | << " of " << *p << dendl; | |
cd265ab1 TL |
1914 | int r; |
1915 | if (!cct->_conf->bluefs_check_for_zeros) { | |
1916 | r = bdev[p->bdev]->read_random(p->offset + x_off, l, out, | |
1917 | cct->_conf->bluefs_buffered_io); | |
1918 | } else { | |
1919 | r = read_random(p->bdev, p->offset + x_off, l, out, | |
1920 | cct->_conf->bluefs_buffered_io); | |
1921 | } | |
494da23a TL |
1922 | ceph_assert(r == 0); |
1923 | off += l; | |
1924 | len -= l; | |
1925 | ret += l; | |
1926 | out += l; | |
1927 | ||
1928 | logger->inc(l_bluefs_read_random_disk_count, 1); | |
1929 | logger->inc(l_bluefs_read_random_disk_bytes, l); | |
1930 | if (len > 0) { | |
1931 | s_lock.lock(); | |
1932 | } | |
1933 | } else { | |
1934 | auto left = buf->get_buf_remaining(off); | |
adb31ebb | 1935 | int64_t r = std::min(len, left); |
494da23a TL |
1936 | logger->inc(l_bluefs_read_random_buffer_count, 1); |
1937 | logger->inc(l_bluefs_read_random_buffer_bytes, r); | |
1938 | dout(20) << __func__ << " left 0x" << std::hex << left | |
1939 | << " 0x" << off << "~" << len << std::dec | |
1940 | << dendl; | |
1941 | ||
f67539c2 TL |
1942 | auto p = buf->bl.begin(); |
1943 | p.seek(off - buf->bl_off); | |
1944 | p.copy(r, out); | |
1945 | out += r; | |
7c673cae | 1946 | |
494da23a TL |
1947 | dout(30) << __func__ << " result chunk (0x" |
1948 | << std::hex << r << std::dec << " bytes):\n"; | |
1949 | bufferlist t; | |
1950 | t.substr_of(buf->bl, off - buf->bl_off, r); | |
1951 | t.hexdump(*_dout); | |
1952 | *_dout << dendl; | |
1953 | ||
1954 | off += r; | |
1955 | len -= r; | |
1956 | ret += r; | |
1957 | buf->pos += r; | |
1958 | } | |
1959 | } | |
7c673cae FG |
1960 | dout(20) << __func__ << " got " << ret << dendl; |
1961 | --h->file->num_reading; | |
1962 | return ret; | |
1963 | } | |
1964 | ||
adb31ebb | 1965 | int64_t BlueFS::_read( |
7c673cae | 1966 | FileReader *h, ///< [in] read from here |
7c673cae FG |
1967 | uint64_t off, ///< [in] offset |
1968 | size_t len, ///< [in] this many bytes | |
1969 | bufferlist *outbl, ///< [out] optional: reference the result here | |
1970 | char *out) ///< [out] optional: or copy it here | |
1971 | { | |
f67539c2 TL |
1972 | FileReaderBuffer *buf = &(h->buf); |
1973 | ||
494da23a | 1974 | bool prefetch = !outbl && !out; |
7c673cae FG |
1975 | dout(10) << __func__ << " h " << h |
1976 | << " 0x" << std::hex << off << "~" << len << std::dec | |
494da23a TL |
1977 | << " from " << h->file->fnode |
1978 | << (prefetch ? " prefetch" : "") | |
1979 | << dendl; | |
7c673cae FG |
1980 | |
1981 | ++h->file->num_reading; | |
1982 | ||
1983 | if (!h->ignore_eof && | |
1984 | off + len > h->file->fnode.size) { | |
1985 | if (off > h->file->fnode.size) | |
1986 | len = 0; | |
1987 | else | |
1988 | len = h->file->fnode.size - off; | |
1989 | dout(20) << __func__ << " reaching (or past) eof, len clipped to 0x" | |
1990 | << std::hex << len << std::dec << dendl; | |
1991 | } | |
494da23a TL |
1992 | logger->inc(l_bluefs_read_count, 1); |
1993 | logger->inc(l_bluefs_read_bytes, len); | |
1994 | if (prefetch) { | |
1995 | logger->inc(l_bluefs_read_prefetch_count, 1); | |
1996 | logger->inc(l_bluefs_read_prefetch_bytes, len); | |
1997 | } | |
1998 | ||
7c673cae FG |
1999 | if (outbl) |
2000 | outbl->clear(); | |
2001 | ||
adb31ebb | 2002 | int64_t ret = 0; |
494da23a | 2003 | std::shared_lock s_lock(h->lock); |
7c673cae FG |
2004 | while (len > 0) { |
2005 | size_t left; | |
2006 | if (off < buf->bl_off || off >= buf->get_buf_end()) { | |
494da23a TL |
2007 | s_lock.unlock(); |
2008 | std::unique_lock u_lock(h->lock); | |
f91f0fd5 | 2009 | buf->bl.reassign_to_mempool(mempool::mempool_bluefs_file_reader); |
494da23a TL |
2010 | if (off < buf->bl_off || off >= buf->get_buf_end()) { |
2011 | // if precondition hasn't changed during locking upgrade. | |
2012 | buf->bl.clear(); | |
2013 | buf->bl_off = off & super.block_mask(); | |
2014 | uint64_t x_off = 0; | |
2015 | auto p = h->file->fnode.seek(buf->bl_off, &x_off); | |
f6b5b4d7 TL |
2016 | if (p == h->file->fnode.extents.end()) { |
2017 | dout(5) << __func__ << " reading less then required " | |
2018 | << ret << "<" << ret + len << dendl; | |
2019 | break; | |
2020 | } | |
2021 | ||
494da23a TL |
2022 | uint64_t want = round_up_to(len + (off & ~super.block_mask()), |
2023 | super.block_size); | |
2024 | want = std::max(want, buf->max_prefetch); | |
2025 | uint64_t l = std::min(p->length - x_off, want); | |
adb31ebb TL |
2026 | //hard cap to 1GB |
2027 | l = std::min(l, uint64_t(1) << 30); | |
494da23a TL |
2028 | uint64_t eof_offset = round_up_to(h->file->fnode.size, super.block_size); |
2029 | if (!h->ignore_eof && | |
2030 | buf->bl_off + l > eof_offset) { | |
2031 | l = eof_offset - buf->bl_off; | |
2032 | } | |
2033 | dout(20) << __func__ << " fetching 0x" | |
2034 | << std::hex << x_off << "~" << l << std::dec | |
2035 | << " of " << *p << dendl; | |
cd265ab1 TL |
2036 | int r; |
2037 | if (!cct->_conf->bluefs_check_for_zeros) { | |
2038 | r = bdev[p->bdev]->read(p->offset + x_off, l, &buf->bl, ioc[p->bdev], | |
2039 | cct->_conf->bluefs_buffered_io); | |
2040 | } else { | |
2041 | r = read(p->bdev, p->offset + x_off, l, &buf->bl, ioc[p->bdev], | |
2042 | cct->_conf->bluefs_buffered_io); | |
2043 | } | |
494da23a | 2044 | ceph_assert(r == 0); |
7c673cae | 2045 | } |
494da23a TL |
2046 | u_lock.unlock(); |
2047 | s_lock.lock(); | |
2048 | // we should recheck if buffer is valid after lock downgrade | |
2049 | continue; | |
7c673cae FG |
2050 | } |
2051 | left = buf->get_buf_remaining(off); | |
2052 | dout(20) << __func__ << " left 0x" << std::hex << left | |
2053 | << " len 0x" << len << std::dec << dendl; | |
2054 | ||
adb31ebb | 2055 | int64_t r = std::min(len, left); |
7c673cae FG |
2056 | if (outbl) { |
2057 | bufferlist t; | |
2058 | t.substr_of(buf->bl, off - buf->bl_off, r); | |
2059 | outbl->claim_append(t); | |
2060 | } | |
2061 | if (out) { | |
f67539c2 TL |
2062 | auto p = buf->bl.begin(); |
2063 | p.seek(off - buf->bl_off); | |
2064 | p.copy(r, out); | |
7c673cae FG |
2065 | out += r; |
2066 | } | |
2067 | ||
2068 | dout(30) << __func__ << " result chunk (0x" | |
2069 | << std::hex << r << std::dec << " bytes):\n"; | |
2070 | bufferlist t; | |
2071 | t.substr_of(buf->bl, off - buf->bl_off, r); | |
2072 | t.hexdump(*_dout); | |
2073 | *_dout << dendl; | |
2074 | ||
2075 | off += r; | |
2076 | len -= r; | |
2077 | ret += r; | |
2078 | buf->pos += r; | |
2079 | } | |
f67539c2 | 2080 | |
7c673cae | 2081 | dout(20) << __func__ << " got " << ret << dendl; |
11fdf7f2 | 2082 | ceph_assert(!outbl || (int)outbl->length() == ret); |
7c673cae FG |
2083 | --h->file->num_reading; |
2084 | return ret; | |
2085 | } | |
2086 | ||
2087 | void BlueFS::_invalidate_cache(FileRef f, uint64_t offset, uint64_t length) | |
2088 | { | |
2089 | dout(10) << __func__ << " file " << f->fnode | |
2090 | << " 0x" << std::hex << offset << "~" << length << std::dec | |
2091 | << dendl; | |
2092 | if (offset & ~super.block_mask()) { | |
2093 | offset &= super.block_mask(); | |
11fdf7f2 | 2094 | length = round_up_to(length, super.block_size); |
7c673cae FG |
2095 | } |
2096 | uint64_t x_off = 0; | |
2097 | auto p = f->fnode.seek(offset, &x_off); | |
2098 | while (length > 0 && p != f->fnode.extents.end()) { | |
11fdf7f2 | 2099 | uint64_t x_len = std::min(p->length - x_off, length); |
7c673cae FG |
2100 | bdev[p->bdev]->invalidate_cache(p->offset + x_off, x_len); |
2101 | dout(20) << __func__ << " 0x" << std::hex << x_off << "~" << x_len | |
2102 | << std:: dec << " of " << *p << dendl; | |
2103 | offset += x_len; | |
2104 | length -= x_len; | |
2105 | } | |
2106 | } | |
2107 | ||
2108 | uint64_t BlueFS::_estimate_log_size() | |
2109 | { | |
2110 | int avg_dir_size = 40; // fixme | |
2111 | int avg_file_size = 12; | |
2112 | uint64_t size = 4096 * 2; | |
2113 | size += file_map.size() * (1 + sizeof(bluefs_fnode_t)); | |
7c673cae FG |
2114 | size += dir_map.size() + (1 + avg_dir_size); |
2115 | size += file_map.size() * (1 + avg_dir_size + avg_file_size); | |
11fdf7f2 | 2116 | return round_up_to(size, super.block_size); |
7c673cae FG |
2117 | } |
2118 | ||
2119 | void BlueFS::compact_log() | |
2120 | { | |
f6b5b4d7 TL |
2121 | std::unique_lock<ceph::mutex> l(lock); |
2122 | if (!cct->_conf->bluefs_replay_recovery_disable_compact) { | |
2123 | if (cct->_conf->bluefs_compact_log_sync) { | |
2124 | _compact_log_sync(); | |
2125 | } else { | |
2126 | _compact_log_async(l); | |
2127 | } | |
7c673cae FG |
2128 | } |
2129 | } | |
2130 | ||
2131 | bool BlueFS::_should_compact_log() | |
2132 | { | |
2133 | uint64_t current = log_writer->file->fnode.size; | |
2134 | uint64_t expected = _estimate_log_size(); | |
2135 | float ratio = (float)current / (float)expected; | |
2136 | dout(10) << __func__ << " current 0x" << std::hex << current | |
2137 | << " expected " << expected << std::dec | |
2138 | << " ratio " << ratio | |
2139 | << (new_log ? " (async compaction in progress)" : "") | |
2140 | << dendl; | |
2141 | if (new_log || | |
2142 | current < cct->_conf->bluefs_log_compact_min_size || | |
2143 | ratio < cct->_conf->bluefs_log_compact_min_ratio) { | |
2144 | return false; | |
2145 | } | |
2146 | return true; | |
2147 | } | |
2148 | ||
11fdf7f2 TL |
2149 | void BlueFS::_compact_log_dump_metadata(bluefs_transaction_t *t, |
2150 | int flags) | |
7c673cae FG |
2151 | { |
2152 | t->seq = 1; | |
2153 | t->uuid = super.uuid; | |
2154 | dout(20) << __func__ << " op_init" << dendl; | |
2155 | ||
2156 | t->op_init(); | |
9f95a23c TL |
2157 | for (auto& [ino, file_ref] : file_map) { |
2158 | if (ino == 1) | |
7c673cae | 2159 | continue; |
9f95a23c | 2160 | ceph_assert(ino > 1); |
11fdf7f2 | 2161 | |
9f95a23c | 2162 | for(auto& e : file_ref->fnode.extents) { |
11fdf7f2 TL |
2163 | auto bdev = e.bdev; |
2164 | auto bdev_new = bdev; | |
2165 | ceph_assert(!((flags & REMOVE_WAL) && bdev == BDEV_WAL)); | |
2166 | if ((flags & RENAME_SLOW2DB) && bdev == BDEV_SLOW) { | |
2167 | bdev_new = BDEV_DB; | |
2168 | } | |
2169 | if ((flags & RENAME_DB2SLOW) && bdev == BDEV_DB) { | |
2170 | bdev_new = BDEV_SLOW; | |
2171 | } | |
2172 | if (bdev == BDEV_NEWDB) { | |
2173 | // REMOVE_DB xor RENAME_DB | |
2174 | ceph_assert(!(flags & REMOVE_DB) != !(flags & RENAME_DB2SLOW)); | |
2175 | ceph_assert(!(flags & RENAME_SLOW2DB)); | |
2176 | bdev_new = BDEV_DB; | |
2177 | } | |
2178 | if (bdev == BDEV_NEWWAL) { | |
2179 | ceph_assert(flags & REMOVE_WAL); | |
2180 | bdev_new = BDEV_WAL; | |
2181 | } | |
2182 | e.bdev = bdev_new; | |
2183 | } | |
9f95a23c TL |
2184 | dout(20) << __func__ << " op_file_update " << file_ref->fnode << dendl; |
2185 | t->op_file_update(file_ref->fnode); | |
7c673cae | 2186 | } |
9f95a23c TL |
2187 | for (auto& [path, dir_ref] : dir_map) { |
2188 | dout(20) << __func__ << " op_dir_create " << path << dendl; | |
2189 | t->op_dir_create(path); | |
2190 | for (auto& [fname, file_ref] : dir_ref->file_map) { | |
2191 | dout(20) << __func__ << " op_dir_link " << path << "/" << fname | |
2192 | << " to " << file_ref->fnode.ino << dendl; | |
2193 | t->op_dir_link(path, fname, file_ref->fnode.ino); | |
7c673cae FG |
2194 | } |
2195 | } | |
2196 | } | |
2197 | ||
2198 | void BlueFS::_compact_log_sync() | |
2199 | { | |
2200 | dout(10) << __func__ << dendl; | |
9f95a23c TL |
2201 | auto prefer_bdev = |
2202 | vselector->select_prefer_bdev(log_writer->file->vselector_hint); | |
2203 | _rewrite_log_and_layout_sync(true, | |
11fdf7f2 | 2204 | BDEV_DB, |
9f95a23c TL |
2205 | prefer_bdev, |
2206 | prefer_bdev, | |
2207 | 0, | |
2208 | super.memorized_layout); | |
11fdf7f2 TL |
2209 | logger->inc(l_bluefs_log_compactions); |
2210 | } | |
2211 | ||
9f95a23c TL |
2212 | void BlueFS::_rewrite_log_and_layout_sync(bool allocate_with_fallback, |
2213 | int super_dev, | |
2214 | int log_dev, | |
2215 | int log_dev_new, | |
2216 | int flags, | |
2217 | std::optional<bluefs_layout_t> layout) | |
11fdf7f2 | 2218 | { |
7c673cae FG |
2219 | File *log_file = log_writer->file.get(); |
2220 | ||
2221 | // clear out log (be careful who calls us!!!) | |
2222 | log_t.clear(); | |
2223 | ||
11fdf7f2 TL |
2224 | dout(20) << __func__ << " super_dev:" << super_dev |
2225 | << " log_dev:" << log_dev | |
2226 | << " log_dev_new:" << log_dev_new | |
2227 | << " flags:" << flags | |
2228 | << dendl; | |
7c673cae | 2229 | bluefs_transaction_t t; |
11fdf7f2 | 2230 | _compact_log_dump_metadata(&t, flags); |
7c673cae FG |
2231 | |
2232 | dout(20) << __func__ << " op_jump_seq " << log_seq << dendl; | |
2233 | t.op_jump_seq(log_seq); | |
2234 | ||
2235 | bufferlist bl; | |
11fdf7f2 | 2236 | encode(t, bl); |
7c673cae FG |
2237 | _pad_bl(bl); |
2238 | ||
2239 | uint64_t need = bl.length() + cct->_conf->bluefs_max_log_runway; | |
2240 | dout(20) << __func__ << " need " << need << dendl; | |
2241 | ||
494da23a | 2242 | bluefs_fnode_t old_fnode; |
11fdf7f2 | 2243 | int r; |
494da23a | 2244 | log_file->fnode.swap_extents(old_fnode); |
11fdf7f2 TL |
2245 | if (allocate_with_fallback) { |
2246 | r = _allocate(log_dev, need, &log_file->fnode); | |
2247 | ceph_assert(r == 0); | |
2248 | } else { | |
2249 | PExtentVector extents; | |
2250 | r = _allocate_without_fallback(log_dev, | |
2251 | need, | |
2252 | &extents); | |
2253 | ceph_assert(r == 0); | |
2254 | for (auto& p : extents) { | |
2255 | log_file->fnode.append_extent( | |
2256 | bluefs_extent_t(log_dev, p.offset, p.length)); | |
2257 | } | |
7c673cae FG |
2258 | } |
2259 | ||
2260 | _close_writer(log_writer); | |
2261 | ||
2262 | log_file->fnode.size = bl.length(); | |
9f95a23c TL |
2263 | vselector->sub_usage(log_file->vselector_hint, old_fnode); |
2264 | vselector->add_usage(log_file->vselector_hint, log_file->fnode); | |
2265 | ||
7c673cae FG |
2266 | log_writer = _create_writer(log_file); |
2267 | log_writer->append(bl); | |
11fdf7f2 TL |
2268 | r = _flush(log_writer, true); |
2269 | ceph_assert(r == 0); | |
2270 | #ifdef HAVE_LIBAIO | |
2271 | if (!cct->_conf->bluefs_sync_write) { | |
2272 | list<aio_t> completed_ios; | |
2273 | _claim_completed_aios(log_writer, &completed_ios); | |
2274 | wait_for_aio(log_writer); | |
2275 | completed_ios.clear(); | |
2276 | } | |
2277 | #endif | |
224ce89b | 2278 | flush_bdev(); |
224ce89b | 2279 | |
9f95a23c | 2280 | super.memorized_layout = layout; |
7c673cae | 2281 | super.log_fnode = log_file->fnode; |
11fdf7f2 TL |
2282 | // rename device if needed |
2283 | if (log_dev != log_dev_new) { | |
2284 | dout(10) << __func__ << " renaming log extents to " << log_dev_new << dendl; | |
2285 | for (auto& p : super.log_fnode.extents) { | |
2286 | p.bdev = log_dev_new; | |
2287 | } | |
2288 | } | |
2289 | dout(10) << __func__ << " writing super, log fnode: " << super.log_fnode << dendl; | |
2290 | ||
7c673cae | 2291 | ++super.version; |
11fdf7f2 | 2292 | _write_super(super_dev); |
7c673cae FG |
2293 | flush_bdev(); |
2294 | ||
494da23a TL |
2295 | dout(10) << __func__ << " release old log extents " << old_fnode.extents << dendl; |
2296 | for (auto& r : old_fnode.extents) { | |
7c673cae FG |
2297 | pending_release[r.bdev].insert(r.offset, r.length); |
2298 | } | |
7c673cae FG |
2299 | } |
2300 | ||
2301 | /* | |
2302 | * 1. Allocate a new extent to continue the log, and then log an event | |
2303 | * that jumps the log write position to the new extent. At this point, the | |
2304 | * old extent(s) won't be written to, and reflect everything to compact. | |
2305 | * New events will be written to the new region that we'll keep. | |
2306 | * | |
2307 | * 2. While still holding the lock, encode a bufferlist that dumps all of the | |
2308 | * in-memory fnodes and names. This will become the new beginning of the | |
2309 | * log. The last event will jump to the log continuation extent from #1. | |
2310 | * | |
2311 | * 3. Queue a write to a new extent for the new beginnging of the log. | |
2312 | * | |
2313 | * 4. Drop lock and wait | |
2314 | * | |
2315 | * 5. Retake the lock. | |
2316 | * | |
2317 | * 6. Update the log_fnode to splice in the new beginning. | |
2318 | * | |
2319 | * 7. Write the new superblock. | |
2320 | * | |
2321 | * 8. Release the old log space. Clean up. | |
2322 | */ | |
11fdf7f2 | 2323 | void BlueFS::_compact_log_async(std::unique_lock<ceph::mutex>& l) |
7c673cae FG |
2324 | { |
2325 | dout(10) << __func__ << dendl; | |
2326 | File *log_file = log_writer->file.get(); | |
11fdf7f2 TL |
2327 | ceph_assert(!new_log); |
2328 | ceph_assert(!new_log_writer); | |
7c673cae | 2329 | |
181888fb FG |
2330 | // create a new log [writer] so that we know compaction is in progress |
2331 | // (see _should_compact_log) | |
9f95a23c | 2332 | new_log = ceph::make_ref<File>(); |
181888fb FG |
2333 | new_log->fnode.ino = 0; // so that _flush_range won't try to log the fnode |
2334 | ||
3efd9988 FG |
2335 | // 0. wait for any racing flushes to complete. (We do not want to block |
2336 | // in _flush_sync_log with jump_to set or else a racing thread might flush | |
2337 | // our entries and our jump_to update won't be correct.) | |
2338 | while (log_flushing) { | |
2339 | dout(10) << __func__ << " log is currently flushing, waiting" << dendl; | |
2340 | log_cond.wait(l); | |
2341 | } | |
2342 | ||
9f95a23c TL |
2343 | vselector->sub_usage(log_file->vselector_hint, log_file->fnode); |
2344 | ||
7c673cae FG |
2345 | // 1. allocate new log space and jump to it. |
2346 | old_log_jump_to = log_file->fnode.get_allocated(); | |
7c673cae | 2347 | dout(10) << __func__ << " old_log_jump_to 0x" << std::hex << old_log_jump_to |
11fdf7f2 | 2348 | << " need 0x" << (old_log_jump_to + cct->_conf->bluefs_max_log_runway) << std::dec << dendl; |
9f95a23c TL |
2349 | int r = _allocate(vselector->select_prefer_bdev(log_file->vselector_hint), |
2350 | cct->_conf->bluefs_max_log_runway, | |
2351 | &log_file->fnode); | |
11fdf7f2 | 2352 | ceph_assert(r == 0); |
9f95a23c TL |
2353 | //adjust usage as flush below will need it |
2354 | vselector->add_usage(log_file->vselector_hint, log_file->fnode); | |
7c673cae FG |
2355 | dout(10) << __func__ << " log extents " << log_file->fnode.extents << dendl; |
2356 | ||
2357 | // update the log file change and log a jump to the offset where we want to | |
2358 | // write the new entries | |
2359 | log_t.op_file_update(log_file->fnode); | |
2360 | log_t.op_jump(log_seq, old_log_jump_to); | |
2361 | ||
2362 | flush_bdev(); // FIXME? | |
2363 | ||
2364 | _flush_and_sync_log(l, 0, old_log_jump_to); | |
2365 | ||
2366 | // 2. prepare compacted log | |
2367 | bluefs_transaction_t t; | |
224ce89b WB |
2368 | //avoid record two times in log_t and _compact_log_dump_metadata. |
2369 | log_t.clear(); | |
11fdf7f2 | 2370 | _compact_log_dump_metadata(&t, 0); |
7c673cae | 2371 | |
eafe8130 TL |
2372 | uint64_t max_alloc_size = std::max(alloc_size[BDEV_WAL], |
2373 | std::max(alloc_size[BDEV_DB], | |
2374 | alloc_size[BDEV_SLOW])); | |
2375 | ||
7c673cae | 2376 | // conservative estimate for final encoded size |
11fdf7f2 | 2377 | new_log_jump_to = round_up_to(t.op_bl.length() + super.block_size * 2, |
eafe8130 | 2378 | max_alloc_size); |
7c673cae FG |
2379 | t.op_jump(log_seq, new_log_jump_to); |
2380 | ||
11fdf7f2 | 2381 | // allocate |
9f95a23c | 2382 | //FIXME: check if we want DB here? |
11fdf7f2 TL |
2383 | r = _allocate(BlueFS::BDEV_DB, new_log_jump_to, |
2384 | &new_log->fnode); | |
2385 | ceph_assert(r == 0); | |
2386 | ||
2387 | // we might have some more ops in log_t due to _allocate call | |
2388 | t.claim_ops(log_t); | |
2389 | ||
7c673cae | 2390 | bufferlist bl; |
11fdf7f2 | 2391 | encode(t, bl); |
7c673cae FG |
2392 | _pad_bl(bl); |
2393 | ||
2394 | dout(10) << __func__ << " new_log_jump_to 0x" << std::hex << new_log_jump_to | |
2395 | << std::dec << dendl; | |
2396 | ||
7c673cae FG |
2397 | new_log_writer = _create_writer(new_log); |
2398 | new_log_writer->append(bl); | |
2399 | ||
2400 | // 3. flush | |
2401 | r = _flush(new_log_writer, true); | |
11fdf7f2 | 2402 | ceph_assert(r == 0); |
7c673cae FG |
2403 | |
2404 | // 4. wait | |
11fdf7f2 | 2405 | _flush_bdev_safely(new_log_writer); |
7c673cae | 2406 | |
11fdf7f2 | 2407 | // 5. update our log fnode |
7c673cae | 2408 | // discard first old_log_jump_to extents |
9f95a23c | 2409 | |
7c673cae FG |
2410 | dout(10) << __func__ << " remove 0x" << std::hex << old_log_jump_to << std::dec |
2411 | << " of " << log_file->fnode.extents << dendl; | |
2412 | uint64_t discarded = 0; | |
2413 | mempool::bluefs::vector<bluefs_extent_t> old_extents; | |
2414 | while (discarded < old_log_jump_to) { | |
11fdf7f2 | 2415 | ceph_assert(!log_file->fnode.extents.empty()); |
7c673cae FG |
2416 | bluefs_extent_t& e = log_file->fnode.extents.front(); |
2417 | bluefs_extent_t temp = e; | |
2418 | if (discarded + e.length <= old_log_jump_to) { | |
2419 | dout(10) << __func__ << " remove old log extent " << e << dendl; | |
2420 | discarded += e.length; | |
94b18763 | 2421 | log_file->fnode.pop_front_extent(); |
7c673cae FG |
2422 | } else { |
2423 | dout(10) << __func__ << " remove front of old log extent " << e << dendl; | |
2424 | uint64_t drop = old_log_jump_to - discarded; | |
2425 | temp.length = drop; | |
2426 | e.offset += drop; | |
2427 | e.length -= drop; | |
2428 | discarded += drop; | |
2429 | dout(10) << __func__ << " kept " << e << " removed " << temp << dendl; | |
2430 | } | |
2431 | old_extents.push_back(temp); | |
2432 | } | |
94b18763 FG |
2433 | auto from = log_file->fnode.extents.begin(); |
2434 | auto to = log_file->fnode.extents.end(); | |
2435 | while (from != to) { | |
2436 | new_log->fnode.append_extent(*from); | |
2437 | ++from; | |
2438 | } | |
7c673cae | 2439 | |
9f95a23c TL |
2440 | vselector->sub_usage(log_file->vselector_hint, log_file->fnode); |
2441 | ||
7c673cae | 2442 | // clear the extents from old log file, they are added to new log |
94b18763 | 2443 | log_file->fnode.clear_extents(); |
7c673cae | 2444 | // swap the log files. New log file is the log file now. |
94b18763 FG |
2445 | new_log->fnode.swap_extents(log_file->fnode); |
2446 | ||
7c673cae FG |
2447 | log_writer->pos = log_writer->file->fnode.size = |
2448 | log_writer->pos - old_log_jump_to + new_log_jump_to; | |
2449 | ||
9f95a23c TL |
2450 | vselector->add_usage(log_file->vselector_hint, log_file->fnode); |
2451 | ||
11fdf7f2 | 2452 | // 6. write the super block to reflect the changes |
7c673cae FG |
2453 | dout(10) << __func__ << " writing super" << dendl; |
2454 | super.log_fnode = log_file->fnode; | |
2455 | ++super.version; | |
11fdf7f2 | 2456 | _write_super(BDEV_DB); |
7c673cae FG |
2457 | |
2458 | lock.unlock(); | |
2459 | flush_bdev(); | |
2460 | lock.lock(); | |
2461 | ||
11fdf7f2 | 2462 | // 7. release old space |
7c673cae FG |
2463 | dout(10) << __func__ << " release old log extents " << old_extents << dendl; |
2464 | for (auto& r : old_extents) { | |
2465 | pending_release[r.bdev].insert(r.offset, r.length); | |
2466 | } | |
2467 | ||
2468 | // delete the new log, remove from the dirty files list | |
2469 | _close_writer(new_log_writer); | |
2470 | if (new_log->dirty_seq) { | |
11fdf7f2 | 2471 | ceph_assert(dirty_files.count(new_log->dirty_seq)); |
7c673cae FG |
2472 | auto it = dirty_files[new_log->dirty_seq].iterator_to(*new_log); |
2473 | dirty_files[new_log->dirty_seq].erase(it); | |
2474 | } | |
2475 | new_log_writer = nullptr; | |
2476 | new_log = nullptr; | |
2477 | log_cond.notify_all(); | |
2478 | ||
2479 | dout(10) << __func__ << " log extents " << log_file->fnode.extents << dendl; | |
2480 | logger->inc(l_bluefs_log_compactions); | |
2481 | } | |
2482 | ||
2483 | void BlueFS::_pad_bl(bufferlist& bl) | |
2484 | { | |
2485 | uint64_t partial = bl.length() % super.block_size; | |
2486 | if (partial) { | |
2487 | dout(10) << __func__ << " padding with 0x" << std::hex | |
2488 | << super.block_size - partial << " zeros" << std::dec << dendl; | |
2489 | bl.append_zero(super.block_size - partial); | |
2490 | } | |
2491 | } | |
2492 | ||
7c673cae | 2493 | |
11fdf7f2 | 2494 | int BlueFS::_flush_and_sync_log(std::unique_lock<ceph::mutex>& l, |
7c673cae FG |
2495 | uint64_t want_seq, |
2496 | uint64_t jump_to) | |
2497 | { | |
2498 | while (log_flushing) { | |
2499 | dout(10) << __func__ << " want_seq " << want_seq | |
2500 | << " log is currently flushing, waiting" << dendl; | |
11fdf7f2 | 2501 | ceph_assert(!jump_to); |
7c673cae FG |
2502 | log_cond.wait(l); |
2503 | } | |
2504 | if (want_seq && want_seq <= log_seq_stable) { | |
2505 | dout(10) << __func__ << " want_seq " << want_seq << " <= log_seq_stable " | |
2506 | << log_seq_stable << ", done" << dendl; | |
11fdf7f2 | 2507 | ceph_assert(!jump_to); |
7c673cae FG |
2508 | return 0; |
2509 | } | |
2510 | if (log_t.empty() && dirty_files.empty()) { | |
2511 | dout(10) << __func__ << " want_seq " << want_seq | |
2512 | << " " << log_t << " not dirty, dirty_files empty, no-op" << dendl; | |
11fdf7f2 | 2513 | ceph_assert(!jump_to); |
7c673cae FG |
2514 | return 0; |
2515 | } | |
2516 | ||
a8e16298 TL |
2517 | vector<interval_set<uint64_t>> to_release(pending_release.size()); |
2518 | to_release.swap(pending_release); | |
2519 | ||
7c673cae | 2520 | uint64_t seq = log_t.seq = ++log_seq; |
11fdf7f2 | 2521 | ceph_assert(want_seq == 0 || want_seq <= seq); |
7c673cae FG |
2522 | log_t.uuid = super.uuid; |
2523 | ||
2524 | // log dirty files | |
2525 | auto lsi = dirty_files.find(seq); | |
2526 | if (lsi != dirty_files.end()) { | |
2527 | dout(20) << __func__ << " " << lsi->second.size() << " dirty_files" << dendl; | |
2528 | for (auto &f : lsi->second) { | |
2529 | dout(20) << __func__ << " op_file_update " << f.fnode << dendl; | |
2530 | log_t.op_file_update(f.fnode); | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | dout(10) << __func__ << " " << log_t << dendl; | |
11fdf7f2 | 2535 | ceph_assert(!log_t.empty()); |
7c673cae FG |
2536 | |
2537 | // allocate some more space (before we run out)? | |
f67539c2 | 2538 | // BTW: this triggers `flush()` in the `page_aligned_appender` of `log_writer`. |
7c673cae FG |
2539 | int64_t runway = log_writer->file->fnode.get_allocated() - |
2540 | log_writer->get_effective_write_pos(); | |
f6b5b4d7 | 2541 | bool just_expanded_log = false; |
7c673cae FG |
2542 | if (runway < (int64_t)cct->_conf->bluefs_min_log_runway) { |
2543 | dout(10) << __func__ << " allocating more log runway (0x" | |
2544 | << std::hex << runway << std::dec << " remaining)" << dendl; | |
2545 | while (new_log_writer) { | |
2546 | dout(10) << __func__ << " waiting for async compaction" << dendl; | |
2547 | log_cond.wait(l); | |
2548 | } | |
9f95a23c TL |
2549 | vselector->sub_usage(log_writer->file->vselector_hint, log_writer->file->fnode); |
2550 | int r = _allocate( | |
2551 | vselector->select_prefer_bdev(log_writer->file->vselector_hint), | |
2552 | cct->_conf->bluefs_max_log_runway, | |
2553 | &log_writer->file->fnode); | |
11fdf7f2 | 2554 | ceph_assert(r == 0); |
9f95a23c | 2555 | vselector->add_usage(log_writer->file->vselector_hint, log_writer->file->fnode); |
7c673cae | 2556 | log_t.op_file_update(log_writer->file->fnode); |
f6b5b4d7 | 2557 | just_expanded_log = true; |
7c673cae FG |
2558 | } |
2559 | ||
2560 | bufferlist bl; | |
11fdf7f2 TL |
2561 | bl.reserve(super.block_size); |
2562 | encode(log_t, bl); | |
7c673cae | 2563 | // pad to block boundary |
11fdf7f2 TL |
2564 | size_t realign = super.block_size - (bl.length() % super.block_size); |
2565 | if (realign && realign != super.block_size) | |
2566 | bl.append_zero(realign); | |
2567 | ||
7c673cae FG |
2568 | logger->inc(l_bluefs_logged_bytes, bl.length()); |
2569 | ||
f6b5b4d7 TL |
2570 | if (just_expanded_log) { |
2571 | ceph_assert(bl.length() <= runway); // if we write this, we will have an unrecoverable data loss | |
2572 | } | |
2573 | ||
7c673cae FG |
2574 | log_writer->append(bl); |
2575 | ||
2576 | log_t.clear(); | |
2577 | log_t.seq = 0; // just so debug output is less confusing | |
2578 | log_flushing = true; | |
2579 | ||
2580 | int r = _flush(log_writer, true); | |
11fdf7f2 | 2581 | ceph_assert(r == 0); |
7c673cae FG |
2582 | |
2583 | if (jump_to) { | |
2584 | dout(10) << __func__ << " jumping log offset from 0x" << std::hex | |
2585 | << log_writer->pos << " -> 0x" << jump_to << std::dec << dendl; | |
2586 | log_writer->pos = jump_to; | |
9f95a23c | 2587 | vselector->sub_usage(log_writer->file->vselector_hint, log_writer->file->fnode.size); |
7c673cae | 2588 | log_writer->file->fnode.size = jump_to; |
9f95a23c | 2589 | vselector->add_usage(log_writer->file->vselector_hint, log_writer->file->fnode.size); |
7c673cae FG |
2590 | } |
2591 | ||
2592 | _flush_bdev_safely(log_writer); | |
2593 | ||
2594 | log_flushing = false; | |
2595 | log_cond.notify_all(); | |
2596 | ||
2597 | // clean dirty files | |
2598 | if (seq > log_seq_stable) { | |
2599 | log_seq_stable = seq; | |
2600 | dout(20) << __func__ << " log_seq_stable " << log_seq_stable << dendl; | |
2601 | ||
2602 | auto p = dirty_files.begin(); | |
2603 | while (p != dirty_files.end()) { | |
2604 | if (p->first > log_seq_stable) { | |
2605 | dout(20) << __func__ << " done cleaning up dirty files" << dendl; | |
2606 | break; | |
2607 | } | |
2608 | ||
2609 | auto l = p->second.begin(); | |
2610 | while (l != p->second.end()) { | |
2611 | File *file = &*l; | |
11fdf7f2 TL |
2612 | ceph_assert(file->dirty_seq > 0); |
2613 | ceph_assert(file->dirty_seq <= log_seq_stable); | |
7c673cae FG |
2614 | dout(20) << __func__ << " cleaned file " << file->fnode << dendl; |
2615 | file->dirty_seq = 0; | |
2616 | p->second.erase(l++); | |
2617 | } | |
2618 | ||
11fdf7f2 | 2619 | ceph_assert(p->second.empty()); |
7c673cae FG |
2620 | dirty_files.erase(p++); |
2621 | } | |
2622 | } else { | |
2623 | dout(20) << __func__ << " log_seq_stable " << log_seq_stable | |
2624 | << " already >= out seq " << seq | |
2625 | << ", we lost a race against another log flush, done" << dendl; | |
2626 | } | |
a8e16298 TL |
2627 | |
2628 | for (unsigned i = 0; i < to_release.size(); ++i) { | |
2629 | if (!to_release[i].empty()) { | |
2630 | /* OK, now we have the guarantee alloc[i] won't be null. */ | |
11fdf7f2 TL |
2631 | int r = 0; |
2632 | if (cct->_conf->bdev_enable_discard && cct->_conf->bdev_async_discard) { | |
2633 | r = bdev[i]->queue_discard(to_release[i]); | |
2634 | if (r == 0) | |
2635 | continue; | |
2636 | } else if (cct->_conf->bdev_enable_discard) { | |
2637 | for (auto p = to_release[i].begin(); p != to_release[i].end(); ++p) { | |
2638 | bdev[i]->discard(p.get_start(), p.get_len()); | |
2639 | } | |
2640 | } | |
a8e16298 | 2641 | alloc[i]->release(to_release[i]); |
f67539c2 TL |
2642 | if (is_shared_alloc(i)) { |
2643 | shared_alloc->bluefs_used -= to_release[i].size(); | |
2644 | } | |
a8e16298 TL |
2645 | } |
2646 | } | |
2647 | ||
7c673cae FG |
2648 | _update_logger_stats(); |
2649 | ||
2650 | return 0; | |
2651 | } | |
2652 | ||
f67539c2 TL |
2653 | ceph::bufferlist BlueFS::FileWriter::flush_buffer( |
2654 | CephContext* const cct, | |
2655 | const bool partial, | |
2656 | const unsigned length, | |
2657 | const bluefs_super_t& super) | |
2658 | { | |
2659 | ceph::bufferlist bl; | |
2660 | if (partial) { | |
2661 | tail_block.splice(0, tail_block.length(), &bl); | |
2662 | } | |
2663 | const auto remaining_len = length - bl.length(); | |
2664 | buffer.splice(0, remaining_len, &bl); | |
2665 | if (buffer.length()) { | |
2666 | dout(20) << " leaving 0x" << std::hex << buffer.length() << std::dec | |
2667 | << " unflushed" << dendl; | |
2668 | } | |
2669 | if (const unsigned tail = bl.length() & ~super.block_mask(); tail) { | |
2670 | const auto padding_len = super.block_size - tail; | |
2671 | dout(20) << __func__ << " caching tail of 0x" | |
2672 | << std::hex << tail | |
2673 | << " and padding block with 0x" << padding_len | |
2674 | << " buffer.length() " << buffer.length() | |
2675 | << std::dec << dendl; | |
2676 | // We need to go through the `buffer_appender` to get a chance to | |
2677 | // preserve in-memory contiguity and not mess with the alignment. | |
2678 | // Otherwise a costly rebuild could happen in e.g. `KernelDevice`. | |
2679 | buffer_appender.append_zero(padding_len); | |
2680 | buffer.splice(buffer.length() - padding_len, padding_len, &bl); | |
2681 | // Deep copy the tail here. This allows to avoid costlier copy on | |
2682 | // bufferlist rebuild in e.g. `KernelDevice` and minimizes number | |
2683 | // of memory allocations. | |
2684 | // The alternative approach would be to place the entire tail and | |
2685 | // padding on a dedicated, 4 KB long memory chunk. This shouldn't | |
2686 | // trigger the rebuild while still being less expensive. | |
2687 | buffer_appender.substr_of(bl, bl.length() - padding_len - tail, tail); | |
2688 | buffer.splice(buffer.length() - tail, tail, &tail_block); | |
2689 | } else { | |
2690 | tail_block.clear(); | |
2691 | } | |
2692 | return bl; | |
2693 | } | |
2694 | ||
522d829b TL |
2695 | int BlueFS::_signal_dirty_to_log(FileWriter *h) |
2696 | { | |
2697 | h->file->fnode.mtime = ceph_clock_now(); | |
2698 | ceph_assert(h->file->fnode.ino >= 1); | |
2699 | if (h->file->dirty_seq == 0) { | |
2700 | h->file->dirty_seq = log_seq + 1; | |
2701 | dirty_files[h->file->dirty_seq].push_back(*h->file); | |
2702 | dout(20) << __func__ << " dirty_seq = " << log_seq + 1 | |
2703 | << " (was clean)" << dendl; | |
2704 | } else { | |
2705 | if (h->file->dirty_seq != log_seq + 1) { | |
2706 | // need re-dirty, erase from list first | |
2707 | ceph_assert(dirty_files.count(h->file->dirty_seq)); | |
2708 | auto it = dirty_files[h->file->dirty_seq].iterator_to(*h->file); | |
2709 | dirty_files[h->file->dirty_seq].erase(it); | |
2710 | h->file->dirty_seq = log_seq + 1; | |
2711 | dirty_files[h->file->dirty_seq].push_back(*h->file); | |
2712 | dout(20) << __func__ << " dirty_seq = " << log_seq + 1 | |
2713 | << " (was " << h->file->dirty_seq << ")" << dendl; | |
2714 | } else { | |
2715 | dout(20) << __func__ << " dirty_seq = " << log_seq + 1 | |
2716 | << " (unchanged, do nothing) " << dendl; | |
2717 | } | |
2718 | } | |
2719 | return 0; | |
2720 | } | |
2721 | ||
7c673cae FG |
2722 | int BlueFS::_flush_range(FileWriter *h, uint64_t offset, uint64_t length) |
2723 | { | |
2724 | dout(10) << __func__ << " " << h << " pos 0x" << std::hex << h->pos | |
2725 | << " 0x" << offset << "~" << length << std::dec | |
2726 | << " to " << h->file->fnode << dendl; | |
f67539c2 TL |
2727 | if (h->file->deleted) { |
2728 | dout(10) << __func__ << " deleted, no-op" << dendl; | |
2729 | return 0; | |
2730 | } | |
7c673cae | 2731 | |
f67539c2 | 2732 | ceph_assert(h->file->num_readers.load() == 0); |
7c673cae FG |
2733 | |
2734 | bool buffered; | |
2735 | if (h->file->fnode.ino == 1) | |
2736 | buffered = false; | |
2737 | else | |
2738 | buffered = cct->_conf->bluefs_buffered_io; | |
2739 | ||
2740 | if (offset + length <= h->pos) | |
2741 | return 0; | |
2742 | if (offset < h->pos) { | |
2743 | length -= h->pos - offset; | |
2744 | offset = h->pos; | |
2745 | dout(10) << " still need 0x" | |
2746 | << std::hex << offset << "~" << length << std::dec | |
2747 | << dendl; | |
2748 | } | |
11fdf7f2 | 2749 | ceph_assert(offset <= h->file->fnode.size); |
7c673cae FG |
2750 | |
2751 | uint64_t allocated = h->file->fnode.get_allocated(); | |
9f95a23c | 2752 | vselector->sub_usage(h->file->vselector_hint, h->file->fnode); |
7c673cae FG |
2753 | // do not bother to dirty the file if we are overwriting |
2754 | // previously allocated extents. | |
522d829b | 2755 | |
7c673cae FG |
2756 | if (allocated < offset + length) { |
2757 | // we should never run out of log space here; see the min runway check | |
2758 | // in _flush_and_sync_log. | |
11fdf7f2 | 2759 | ceph_assert(h->file->fnode.ino != 1); |
9f95a23c | 2760 | int r = _allocate(vselector->select_prefer_bdev(h->file->vselector_hint), |
7c673cae | 2761 | offset + length - allocated, |
94b18763 | 2762 | &h->file->fnode); |
7c673cae FG |
2763 | if (r < 0) { |
2764 | derr << __func__ << " allocated: 0x" << std::hex << allocated | |
2765 | << " offset: 0x" << offset << " length: 0x" << length << std::dec | |
2766 | << dendl; | |
9f95a23c | 2767 | vselector->add_usage(h->file->vselector_hint, h->file->fnode); // undo |
11fdf7f2 | 2768 | ceph_abort_msg("bluefs enospc"); |
7c673cae FG |
2769 | return r; |
2770 | } | |
522d829b | 2771 | h->file->is_dirty = true; |
7c673cae FG |
2772 | } |
2773 | if (h->file->fnode.size < offset + length) { | |
2774 | h->file->fnode.size = offset + length; | |
2775 | if (h->file->fnode.ino > 1) { | |
2776 | // we do not need to dirty the log file (or it's compacting | |
2777 | // replacement) when the file size changes because replay is | |
2778 | // smart enough to discover it on its own. | |
522d829b | 2779 | h->file->is_dirty = true; |
7c673cae FG |
2780 | } |
2781 | } | |
522d829b | 2782 | dout(20) << __func__ << " file now, unflushed " << h->file->fnode << dendl; |
7c673cae FG |
2783 | |
2784 | uint64_t x_off = 0; | |
2785 | auto p = h->file->fnode.seek(offset, &x_off); | |
11fdf7f2 | 2786 | ceph_assert(p != h->file->fnode.extents.end()); |
7c673cae FG |
2787 | dout(20) << __func__ << " in " << *p << " x_off 0x" |
2788 | << std::hex << x_off << std::dec << dendl; | |
2789 | ||
2790 | unsigned partial = x_off & ~super.block_mask(); | |
7c673cae FG |
2791 | if (partial) { |
2792 | dout(20) << __func__ << " using partial tail 0x" | |
2793 | << std::hex << partial << std::dec << dendl; | |
7c673cae FG |
2794 | x_off -= partial; |
2795 | offset -= partial; | |
2796 | length += partial; | |
2797 | dout(20) << __func__ << " waiting for previous aio to complete" << dendl; | |
2798 | for (auto p : h->iocv) { | |
2799 | if (p) { | |
2800 | p->aio_wait(); | |
2801 | } | |
2802 | } | |
2803 | } | |
7c673cae | 2804 | |
f67539c2 TL |
2805 | auto bl = h->flush_buffer(cct, partial, length, super); |
2806 | ceph_assert(bl.length() >= length); | |
9f95a23c | 2807 | h->pos = offset + length; |
f67539c2 | 2808 | length = bl.length(); |
9f95a23c | 2809 | |
7c673cae FG |
2810 | switch (h->writer_type) { |
2811 | case WRITER_WAL: | |
2812 | logger->inc(l_bluefs_bytes_written_wal, length); | |
2813 | break; | |
2814 | case WRITER_SST: | |
2815 | logger->inc(l_bluefs_bytes_written_sst, length); | |
2816 | break; | |
2817 | } | |
2818 | ||
2819 | dout(30) << "dump:\n"; | |
2820 | bl.hexdump(*_dout); | |
2821 | *_dout << dendl; | |
2822 | ||
7c673cae | 2823 | uint64_t bloff = 0; |
11fdf7f2 | 2824 | uint64_t bytes_written_slow = 0; |
7c673cae | 2825 | while (length > 0) { |
11fdf7f2 | 2826 | uint64_t x_len = std::min(p->length - x_off, length); |
7c673cae FG |
2827 | bufferlist t; |
2828 | t.substr_of(bl, bloff, x_len); | |
7c673cae | 2829 | if (cct->_conf->bluefs_sync_write) { |
11fdf7f2 | 2830 | bdev[p->bdev]->write(p->offset + x_off, t, buffered, h->write_hint); |
7c673cae | 2831 | } else { |
11fdf7f2 TL |
2832 | bdev[p->bdev]->aio_write(p->offset + x_off, t, h->iocv[p->bdev], buffered, h->write_hint); |
2833 | } | |
2834 | h->dirty_devs[p->bdev] = true; | |
2835 | if (p->bdev == BDEV_SLOW) { | |
2836 | bytes_written_slow += t.length(); | |
7c673cae | 2837 | } |
11fdf7f2 | 2838 | |
7c673cae FG |
2839 | bloff += x_len; |
2840 | length -= x_len; | |
2841 | ++p; | |
2842 | x_off = 0; | |
2843 | } | |
f67539c2 TL |
2844 | if (bytes_written_slow) { |
2845 | logger->inc(l_bluefs_bytes_written_slow, bytes_written_slow); | |
2846 | } | |
7c673cae FG |
2847 | for (unsigned i = 0; i < MAX_BDEV; ++i) { |
2848 | if (bdev[i]) { | |
11fdf7f2 | 2849 | if (h->iocv[i] && h->iocv[i]->has_pending_aios()) { |
7c673cae FG |
2850 | bdev[i]->aio_submit(h->iocv[i]); |
2851 | } | |
2852 | } | |
2853 | } | |
9f95a23c | 2854 | vselector->add_usage(h->file->vselector_hint, h->file->fnode); |
7c673cae FG |
2855 | dout(20) << __func__ << " h " << h << " pos now 0x" |
2856 | << std::hex << h->pos << std::dec << dendl; | |
2857 | return 0; | |
2858 | } | |
2859 | ||
11fdf7f2 | 2860 | #ifdef HAVE_LIBAIO |
7c673cae FG |
2861 | // we need to retire old completed aios so they don't stick around in |
2862 | // memory indefinitely (along with their bufferlist refs). | |
2863 | void BlueFS::_claim_completed_aios(FileWriter *h, list<aio_t> *ls) | |
2864 | { | |
2865 | for (auto p : h->iocv) { | |
2866 | if (p) { | |
2867 | ls->splice(ls->end(), p->running_aios); | |
2868 | } | |
2869 | } | |
2870 | dout(10) << __func__ << " got " << ls->size() << " aios" << dendl; | |
2871 | } | |
2872 | ||
2873 | void BlueFS::wait_for_aio(FileWriter *h) | |
2874 | { | |
2875 | // NOTE: this is safe to call without a lock, as long as our reference is | |
2876 | // stable. | |
f67539c2 TL |
2877 | utime_t start; |
2878 | lgeneric_subdout(cct, bluefs, 10) << __func__; | |
2879 | start = ceph_clock_now(); | |
2880 | *_dout << " " << h << dendl; | |
7c673cae FG |
2881 | for (auto p : h->iocv) { |
2882 | if (p) { | |
2883 | p->aio_wait(); | |
2884 | } | |
2885 | } | |
11fdf7f2 | 2886 | dout(10) << __func__ << " " << h << " done in " << (ceph_clock_now() - start) << dendl; |
7c673cae | 2887 | } |
11fdf7f2 | 2888 | #endif |
7c673cae | 2889 | |
f6b5b4d7 TL |
2890 | int BlueFS::_flush(FileWriter *h, bool force, std::unique_lock<ceph::mutex>& l) |
2891 | { | |
2892 | bool flushed = false; | |
2893 | int r = _flush(h, force, &flushed); | |
2894 | if (r == 0 && flushed) { | |
2895 | _maybe_compact_log(l); | |
2896 | } | |
2897 | return r; | |
2898 | } | |
2899 | ||
2900 | int BlueFS::_flush(FileWriter *h, bool force, bool *flushed) | |
7c673cae | 2901 | { |
f67539c2 | 2902 | uint64_t length = h->get_buffer_length(); |
7c673cae | 2903 | uint64_t offset = h->pos; |
f6b5b4d7 TL |
2904 | if (flushed) { |
2905 | *flushed = false; | |
2906 | } | |
7c673cae FG |
2907 | if (!force && |
2908 | length < cct->_conf->bluefs_min_flush_size) { | |
2909 | dout(10) << __func__ << " " << h << " ignoring, length " << length | |
2910 | << " < min_flush_size " << cct->_conf->bluefs_min_flush_size | |
2911 | << dendl; | |
2912 | return 0; | |
2913 | } | |
2914 | if (length == 0) { | |
2915 | dout(10) << __func__ << " " << h << " no dirty data on " | |
2916 | << h->file->fnode << dendl; | |
2917 | return 0; | |
2918 | } | |
2919 | dout(10) << __func__ << " " << h << " 0x" | |
2920 | << std::hex << offset << "~" << length << std::dec | |
2921 | << " to " << h->file->fnode << dendl; | |
11fdf7f2 | 2922 | ceph_assert(h->pos <= h->file->fnode.size); |
f6b5b4d7 TL |
2923 | int r = _flush_range(h, offset, length); |
2924 | if (flushed) { | |
2925 | *flushed = true; | |
2926 | } | |
2927 | return r; | |
7c673cae FG |
2928 | } |
2929 | ||
2930 | int BlueFS::_truncate(FileWriter *h, uint64_t offset) | |
2931 | { | |
2932 | dout(10) << __func__ << " 0x" << std::hex << offset << std::dec | |
2933 | << " file " << h->file->fnode << dendl; | |
2934 | if (h->file->deleted) { | |
2935 | dout(10) << __func__ << " deleted, no-op" << dendl; | |
2936 | return 0; | |
2937 | } | |
2938 | ||
2939 | // we never truncate internal log files | |
11fdf7f2 | 2940 | ceph_assert(h->file->fnode.ino > 1); |
7c673cae | 2941 | |
7c673cae FG |
2942 | // truncate off unflushed data? |
2943 | if (h->pos < offset && | |
f67539c2 | 2944 | h->pos + h->get_buffer_length() > offset) { |
7c673cae FG |
2945 | dout(20) << __func__ << " tossing out last " << offset - h->pos |
2946 | << " unflushed bytes" << dendl; | |
11fdf7f2 | 2947 | ceph_abort_msg("actually this shouldn't happen"); |
7c673cae | 2948 | } |
f67539c2 | 2949 | if (h->get_buffer_length()) { |
7c673cae FG |
2950 | int r = _flush(h, true); |
2951 | if (r < 0) | |
2952 | return r; | |
2953 | } | |
2954 | if (offset == h->file->fnode.size) { | |
2955 | return 0; // no-op! | |
2956 | } | |
2957 | if (offset > h->file->fnode.size) { | |
11fdf7f2 | 2958 | ceph_abort_msg("truncate up not supported"); |
7c673cae | 2959 | } |
11fdf7f2 | 2960 | ceph_assert(h->file->fnode.size >= offset); |
9f95a23c | 2961 | vselector->sub_usage(h->file->vselector_hint, h->file->fnode.size); |
7c673cae | 2962 | h->file->fnode.size = offset; |
9f95a23c | 2963 | vselector->add_usage(h->file->vselector_hint, h->file->fnode.size); |
7c673cae FG |
2964 | log_t.op_file_update(h->file->fnode); |
2965 | return 0; | |
2966 | } | |
2967 | ||
11fdf7f2 | 2968 | int BlueFS::_fsync(FileWriter *h, std::unique_lock<ceph::mutex>& l) |
7c673cae FG |
2969 | { |
2970 | dout(10) << __func__ << " " << h << " " << h->file->fnode << dendl; | |
2971 | int r = _flush(h, true); | |
2972 | if (r < 0) | |
2973 | return r; | |
522d829b TL |
2974 | if (h->file->is_dirty) { |
2975 | _signal_dirty_to_log(h); | |
2976 | h->file->is_dirty = false; | |
2977 | } | |
7c673cae FG |
2978 | uint64_t old_dirty_seq = h->file->dirty_seq; |
2979 | ||
2980 | _flush_bdev_safely(h); | |
2981 | ||
2982 | if (old_dirty_seq) { | |
2983 | uint64_t s = log_seq; | |
2984 | dout(20) << __func__ << " file metadata was dirty (" << old_dirty_seq | |
2985 | << ") on " << h->file->fnode << ", flushing log" << dendl; | |
2986 | _flush_and_sync_log(l, old_dirty_seq); | |
11fdf7f2 | 2987 | ceph_assert(h->file->dirty_seq == 0 || // cleaned |
7c673cae FG |
2988 | h->file->dirty_seq > s); // or redirtied by someone else |
2989 | } | |
2990 | return 0; | |
2991 | } | |
2992 | ||
2993 | void BlueFS::_flush_bdev_safely(FileWriter *h) | |
2994 | { | |
11fdf7f2 TL |
2995 | std::array<bool, MAX_BDEV> flush_devs = h->dirty_devs; |
2996 | h->dirty_devs.fill(false); | |
2997 | #ifdef HAVE_LIBAIO | |
7c673cae FG |
2998 | if (!cct->_conf->bluefs_sync_write) { |
2999 | list<aio_t> completed_ios; | |
3000 | _claim_completed_aios(h, &completed_ios); | |
3001 | lock.unlock(); | |
3002 | wait_for_aio(h); | |
3003 | completed_ios.clear(); | |
11fdf7f2 | 3004 | flush_bdev(flush_devs); |
7c673cae | 3005 | lock.lock(); |
11fdf7f2 TL |
3006 | } else |
3007 | #endif | |
3008 | { | |
7c673cae | 3009 | lock.unlock(); |
11fdf7f2 | 3010 | flush_bdev(flush_devs); |
7c673cae FG |
3011 | lock.lock(); |
3012 | } | |
3013 | } | |
3014 | ||
11fdf7f2 TL |
3015 | void BlueFS::flush_bdev(std::array<bool, MAX_BDEV>& dirty_bdevs) |
3016 | { | |
3017 | // NOTE: this is safe to call without a lock. | |
3018 | dout(20) << __func__ << dendl; | |
3019 | for (unsigned i = 0; i < MAX_BDEV; i++) { | |
3020 | if (dirty_bdevs[i]) | |
3021 | bdev[i]->flush(); | |
3022 | } | |
3023 | } | |
3024 | ||
7c673cae FG |
3025 | void BlueFS::flush_bdev() |
3026 | { | |
3027 | // NOTE: this is safe to call without a lock. | |
3028 | dout(20) << __func__ << dendl; | |
f67539c2 TL |
3029 | for (unsigned i = 0; i < MAX_BDEV; i++) { |
3030 | // alloc space from BDEV_SLOW is unexpected. | |
3031 | // So most cases we don't alloc from BDEV_SLOW and so avoiding flush not-used device. | |
3032 | if (bdev[i] && (i != BDEV_SLOW || _get_used(i))) { | |
3033 | bdev[i]->flush(); | |
3034 | } | |
7c673cae FG |
3035 | } |
3036 | } | |
3037 | ||
eafe8130 TL |
3038 | const char* BlueFS::get_device_name(unsigned id) |
3039 | { | |
3040 | if (id >= MAX_BDEV) return "BDEV_INV"; | |
3041 | const char* names[] = {"BDEV_WAL", "BDEV_DB", "BDEV_SLOW", "BDEV_NEWWAL", "BDEV_NEWDB"}; | |
3042 | return names[id]; | |
3043 | } | |
3044 | ||
11fdf7f2 TL |
3045 | int BlueFS::_allocate_without_fallback(uint8_t id, uint64_t len, |
3046 | PExtentVector* extents) | |
3047 | { | |
3048 | dout(10) << __func__ << " len 0x" << std::hex << len << std::dec | |
3049 | << " from " << (int)id << dendl; | |
3050 | assert(id < alloc.size()); | |
11fdf7f2 TL |
3051 | if (!alloc[id]) { |
3052 | return -ENOENT; | |
3053 | } | |
3054 | extents->reserve(4); // 4 should be (more than) enough for most allocations | |
f67539c2 TL |
3055 | int64_t need = round_up_to(len, alloc_size[id]); |
3056 | int64_t alloc_len = alloc[id]->allocate(need, alloc_size[id], 0, extents); | |
3057 | if (alloc_len < 0 || alloc_len < need) { | |
eafe8130 | 3058 | if (alloc_len > 0) { |
11fdf7f2 TL |
3059 | alloc[id]->release(*extents); |
3060 | } | |
f67539c2 TL |
3061 | derr << __func__ << " unable to allocate 0x" << std::hex << need |
3062 | << " on bdev " << (int)id | |
3063 | << ", allocator name " << alloc[id]->get_name() | |
3064 | << ", allocator type " << alloc[id]->get_type() | |
3065 | << ", capacity 0x" << alloc[id]->get_capacity() | |
3066 | << ", block size 0x" << alloc[id]->get_block_size() | |
3067 | << ", free 0x" << alloc[id]->get_free() | |
3068 | << ", fragmentation " << alloc[id]->get_fragmentation() | |
3069 | << ", allocated 0x" << (alloc_len > 0 ? alloc_len : 0) | |
3070 | << std::dec << dendl; | |
3071 | alloc[id]->dump(); | |
11fdf7f2 TL |
3072 | return -ENOSPC; |
3073 | } | |
f67539c2 TL |
3074 | if (is_shared_alloc(id)) { |
3075 | shared_alloc->bluefs_used += alloc_len; | |
3076 | } | |
11fdf7f2 TL |
3077 | |
3078 | return 0; | |
3079 | } | |
3080 | ||
7c673cae | 3081 | int BlueFS::_allocate(uint8_t id, uint64_t len, |
94b18763 | 3082 | bluefs_fnode_t* node) |
7c673cae FG |
3083 | { |
3084 | dout(10) << __func__ << " len 0x" << std::hex << len << std::dec | |
3085 | << " from " << (int)id << dendl; | |
11fdf7f2 | 3086 | ceph_assert(id < alloc.size()); |
b32b8144 | 3087 | int64_t alloc_len = 0; |
a8e16298 | 3088 | PExtentVector extents; |
11fdf7f2 | 3089 | uint64_t hint = 0; |
f67539c2 | 3090 | int64_t need = len; |
7c673cae | 3091 | if (alloc[id]) { |
f67539c2 | 3092 | need = round_up_to(len, alloc_size[id]); |
94b18763 FG |
3093 | if (!node->extents.empty() && node->extents.back().bdev == id) { |
3094 | hint = node->extents.back().end(); | |
11fdf7f2 | 3095 | } |
b32b8144 | 3096 | extents.reserve(4); // 4 should be (more than) enough for most allocations |
f67539c2 | 3097 | alloc_len = alloc[id]->allocate(need, alloc_size[id], hint, &extents); |
b32b8144 | 3098 | } |
f67539c2 TL |
3099 | if (alloc_len < 0 || alloc_len < need) { |
3100 | if (alloc[id]) { | |
3101 | if (alloc_len > 0) { | |
3102 | alloc[id]->release(extents); | |
3103 | } | |
3104 | dout(1) << __func__ << " unable to allocate 0x" << std::hex << need | |
3105 | << " on bdev " << (int)id | |
3106 | << ", allocator name " << alloc[id]->get_name() | |
3107 | << ", allocator type " << alloc[id]->get_type() | |
3108 | << ", capacity 0x" << alloc[id]->get_capacity() | |
3109 | << ", block size 0x" << alloc[id]->get_block_size() | |
3110 | << ", free 0x" << alloc[id]->get_free() | |
3111 | << ", fragmentation " << alloc[id]->get_fragmentation() | |
3112 | << ", allocated 0x" << (alloc_len > 0 ? alloc_len : 0) | |
3113 | << std::dec << dendl; | |
b32b8144 | 3114 | } |
f67539c2 | 3115 | |
7c673cae | 3116 | if (id != BDEV_SLOW) { |
f67539c2 TL |
3117 | dout(20) << __func__ << " fallback to bdev " |
3118 | << (int)id + 1 | |
3119 | << dendl; | |
94b18763 | 3120 | return _allocate(id + 1, len, node); |
11fdf7f2 | 3121 | } else { |
f67539c2 TL |
3122 | derr << __func__ << " allocation failed, needed 0x" << std::hex << need |
3123 | << dendl; | |
11fdf7f2 | 3124 | } |
f67539c2 | 3125 | return -ENOSPC; |
11fdf7f2 | 3126 | } else { |
f67539c2 TL |
3127 | uint64_t used = _get_used(id); |
3128 | if (max_bytes[id] < used) { | |
3129 | logger->set(max_bytes_pcounters[id], used); | |
3130 | max_bytes[id] = used; | |
3131 | } | |
3132 | if (is_shared_alloc(id)) { | |
3133 | shared_alloc->bluefs_used += alloc_len; | |
11fdf7f2 | 3134 | } |
7c673cae FG |
3135 | } |
3136 | ||
3137 | for (auto& p : extents) { | |
94b18763 | 3138 | node->append_extent(bluefs_extent_t(id, p.offset, p.length)); |
7c673cae FG |
3139 | } |
3140 | ||
3141 | return 0; | |
3142 | } | |
3143 | ||
3144 | int BlueFS::_preallocate(FileRef f, uint64_t off, uint64_t len) | |
3145 | { | |
3146 | dout(10) << __func__ << " file " << f->fnode << " 0x" | |
3147 | << std::hex << off << "~" << len << std::dec << dendl; | |
3148 | if (f->deleted) { | |
3149 | dout(10) << __func__ << " deleted, no-op" << dendl; | |
3150 | return 0; | |
3151 | } | |
11fdf7f2 | 3152 | ceph_assert(f->fnode.ino > 1); |
7c673cae FG |
3153 | uint64_t allocated = f->fnode.get_allocated(); |
3154 | if (off + len > allocated) { | |
3155 | uint64_t want = off + len - allocated; | |
9f95a23c TL |
3156 | vselector->sub_usage(f->vselector_hint, f->fnode); |
3157 | ||
3158 | int r = _allocate(vselector->select_prefer_bdev(f->vselector_hint), | |
3159 | want, | |
3160 | &f->fnode); | |
3161 | vselector->add_usage(f->vselector_hint, f->fnode); | |
7c673cae FG |
3162 | if (r < 0) |
3163 | return r; | |
7c673cae FG |
3164 | log_t.op_file_update(f->fnode); |
3165 | } | |
3166 | return 0; | |
3167 | } | |
3168 | ||
1911f103 | 3169 | void BlueFS::sync_metadata(bool avoid_compact) |
7c673cae | 3170 | { |
f67539c2 | 3171 | std::unique_lock l(lock); |
9f95a23c | 3172 | if (log_t.empty() && dirty_files.empty()) { |
7c673cae | 3173 | dout(10) << __func__ << " - no pending log events" << dendl; |
11fdf7f2 | 3174 | } else { |
f67539c2 TL |
3175 | utime_t start; |
3176 | lgeneric_subdout(cct, bluefs, 10) << __func__; | |
3177 | start = ceph_clock_now(); | |
3178 | *_dout << dendl; | |
11fdf7f2 TL |
3179 | flush_bdev(); // FIXME? |
3180 | _flush_and_sync_log(l); | |
3181 | dout(10) << __func__ << " done in " << (ceph_clock_now() - start) << dendl; | |
7c673cae | 3182 | } |
7c673cae | 3183 | |
f6b5b4d7 TL |
3184 | if (!avoid_compact) { |
3185 | _maybe_compact_log(l); | |
3186 | } | |
3187 | } | |
3188 | ||
3189 | void BlueFS::_maybe_compact_log(std::unique_lock<ceph::mutex>& l) | |
3190 | { | |
3191 | if (!cct->_conf->bluefs_replay_recovery_disable_compact && | |
3192 | _should_compact_log()) { | |
7c673cae FG |
3193 | if (cct->_conf->bluefs_compact_log_sync) { |
3194 | _compact_log_sync(); | |
3195 | } else { | |
3196 | _compact_log_async(l); | |
3197 | } | |
3198 | } | |
7c673cae FG |
3199 | } |
3200 | ||
3201 | int BlueFS::open_for_write( | |
b3b6e05e TL |
3202 | std::string_view dirname, |
3203 | std::string_view filename, | |
7c673cae FG |
3204 | FileWriter **h, |
3205 | bool overwrite) | |
3206 | { | |
11fdf7f2 | 3207 | std::lock_guard l(lock); |
7c673cae FG |
3208 | dout(10) << __func__ << " " << dirname << "/" << filename << dendl; |
3209 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3210 | DirRef dir; | |
3211 | if (p == dir_map.end()) { | |
3212 | // implicitly create the dir | |
3213 | dout(20) << __func__ << " dir " << dirname | |
3214 | << " does not exist" << dendl; | |
3215 | return -ENOENT; | |
3216 | } else { | |
3217 | dir = p->second; | |
3218 | } | |
3219 | ||
3220 | FileRef file; | |
3221 | bool create = false; | |
f6b5b4d7 | 3222 | bool truncate = false; |
7c673cae FG |
3223 | map<string,FileRef>::iterator q = dir->file_map.find(filename); |
3224 | if (q == dir->file_map.end()) { | |
3225 | if (overwrite) { | |
3226 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3227 | << ") file " << filename | |
3228 | << " does not exist" << dendl; | |
3229 | return -ENOENT; | |
3230 | } | |
9f95a23c | 3231 | file = ceph::make_ref<File>(); |
7c673cae FG |
3232 | file->fnode.ino = ++ino_last; |
3233 | file_map[ino_last] = file; | |
b3b6e05e | 3234 | dir->file_map[string{filename}] = file; |
7c673cae FG |
3235 | ++file->refs; |
3236 | create = true; | |
3237 | } else { | |
3238 | // overwrite existing file? | |
3239 | file = q->second; | |
3240 | if (overwrite) { | |
3241 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3242 | << ") file " << filename | |
3243 | << " already exists, overwrite in place" << dendl; | |
3244 | } else { | |
3245 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3246 | << ") file " << filename | |
3247 | << " already exists, truncate + overwrite" << dendl; | |
9f95a23c | 3248 | vselector->sub_usage(file->vselector_hint, file->fnode); |
7c673cae FG |
3249 | file->fnode.size = 0; |
3250 | for (auto& p : file->fnode.extents) { | |
3251 | pending_release[p.bdev].insert(p.offset, p.length); | |
3252 | } | |
f6b5b4d7 | 3253 | truncate = true; |
94b18763 FG |
3254 | |
3255 | file->fnode.clear_extents(); | |
7c673cae FG |
3256 | } |
3257 | } | |
11fdf7f2 | 3258 | ceph_assert(file->fnode.ino > 1); |
7c673cae FG |
3259 | |
3260 | file->fnode.mtime = ceph_clock_now(); | |
9f95a23c | 3261 | file->vselector_hint = vselector->get_hint_by_dir(dirname); |
f6b5b4d7 TL |
3262 | if (create || truncate) { |
3263 | vselector->add_usage(file->vselector_hint, file->fnode); // update file count | |
3264 | } | |
9f95a23c | 3265 | |
7c673cae | 3266 | dout(20) << __func__ << " mapping " << dirname << "/" << filename |
9f95a23c TL |
3267 | << " vsel_hint " << file->vselector_hint |
3268 | << dendl; | |
7c673cae FG |
3269 | |
3270 | log_t.op_file_update(file->fnode); | |
3271 | if (create) | |
3272 | log_t.op_dir_link(dirname, filename, file->fnode.ino); | |
3273 | ||
3274 | *h = _create_writer(file); | |
3275 | ||
3276 | if (boost::algorithm::ends_with(filename, ".log")) { | |
3277 | (*h)->writer_type = BlueFS::WRITER_WAL; | |
3278 | if (logger && !overwrite) { | |
3279 | logger->inc(l_bluefs_files_written_wal); | |
3280 | } | |
3281 | } else if (boost::algorithm::ends_with(filename, ".sst")) { | |
3282 | (*h)->writer_type = BlueFS::WRITER_SST; | |
3283 | if (logger) { | |
3284 | logger->inc(l_bluefs_files_written_sst); | |
3285 | } | |
3286 | } | |
3287 | ||
3288 | dout(10) << __func__ << " h " << *h << " on " << file->fnode << dendl; | |
3289 | return 0; | |
3290 | } | |
3291 | ||
3292 | BlueFS::FileWriter *BlueFS::_create_writer(FileRef f) | |
3293 | { | |
3294 | FileWriter *w = new FileWriter(f); | |
3295 | for (unsigned i = 0; i < MAX_BDEV; ++i) { | |
3296 | if (bdev[i]) { | |
3297 | w->iocv[i] = new IOContext(cct, NULL); | |
7c673cae FG |
3298 | } |
3299 | } | |
3300 | return w; | |
3301 | } | |
3302 | ||
3303 | void BlueFS::_close_writer(FileWriter *h) | |
3304 | { | |
3305 | dout(10) << __func__ << " " << h << " type " << h->writer_type << dendl; | |
f67539c2 | 3306 | //h->buffer.reassign_to_mempool(mempool::mempool_bluefs_file_writer); |
7c673cae FG |
3307 | for (unsigned i=0; i<MAX_BDEV; ++i) { |
3308 | if (bdev[i]) { | |
11fdf7f2 TL |
3309 | if (h->iocv[i]) { |
3310 | h->iocv[i]->aio_wait(); | |
3311 | bdev[i]->queue_reap_ioc(h->iocv[i]); | |
3312 | } | |
7c673cae FG |
3313 | } |
3314 | } | |
522d829b TL |
3315 | // sanity |
3316 | if (h->file->fnode.size >= (1ull << 30)) { | |
3317 | dout(10) << __func__ << " file is unexpectedly large:" << h->file->fnode << dendl; | |
3318 | } | |
7c673cae FG |
3319 | delete h; |
3320 | } | |
3321 | ||
522d829b TL |
3322 | uint64_t BlueFS::debug_get_dirty_seq(FileWriter *h) |
3323 | { | |
3324 | std::lock_guard l(lock); | |
3325 | return h->file->dirty_seq; | |
3326 | } | |
3327 | ||
3328 | bool BlueFS::debug_get_is_dev_dirty(FileWriter *h, uint8_t dev) | |
3329 | { | |
3330 | std::lock_guard l(lock); | |
3331 | return h->dirty_devs[dev]; | |
3332 | } | |
3333 | ||
7c673cae | 3334 | int BlueFS::open_for_read( |
b3b6e05e TL |
3335 | std::string_view dirname, |
3336 | std::string_view filename, | |
7c673cae FG |
3337 | FileReader **h, |
3338 | bool random) | |
3339 | { | |
11fdf7f2 | 3340 | std::lock_guard l(lock); |
7c673cae FG |
3341 | dout(10) << __func__ << " " << dirname << "/" << filename |
3342 | << (random ? " (random)":" (sequential)") << dendl; | |
3343 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3344 | if (p == dir_map.end()) { | |
3345 | dout(20) << __func__ << " dir " << dirname << " not found" << dendl; | |
3346 | return -ENOENT; | |
3347 | } | |
3348 | DirRef dir = p->second; | |
3349 | ||
3350 | map<string,FileRef>::iterator q = dir->file_map.find(filename); | |
3351 | if (q == dir->file_map.end()) { | |
3352 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3353 | << ") file " << filename | |
3354 | << " not found" << dendl; | |
3355 | return -ENOENT; | |
3356 | } | |
3357 | File *file = q->second.get(); | |
3358 | ||
3359 | *h = new FileReader(file, random ? 4096 : cct->_conf->bluefs_max_prefetch, | |
3360 | random, false); | |
3361 | dout(10) << __func__ << " h " << *h << " on " << file->fnode << dendl; | |
3362 | return 0; | |
3363 | } | |
3364 | ||
3365 | int BlueFS::rename( | |
b3b6e05e TL |
3366 | std::string_view old_dirname, std::string_view old_filename, |
3367 | std::string_view new_dirname, std::string_view new_filename) | |
7c673cae | 3368 | { |
11fdf7f2 | 3369 | std::lock_guard l(lock); |
7c673cae FG |
3370 | dout(10) << __func__ << " " << old_dirname << "/" << old_filename |
3371 | << " -> " << new_dirname << "/" << new_filename << dendl; | |
3372 | map<string,DirRef>::iterator p = dir_map.find(old_dirname); | |
3373 | if (p == dir_map.end()) { | |
3374 | dout(20) << __func__ << " dir " << old_dirname << " not found" << dendl; | |
3375 | return -ENOENT; | |
3376 | } | |
3377 | DirRef old_dir = p->second; | |
3378 | map<string,FileRef>::iterator q = old_dir->file_map.find(old_filename); | |
3379 | if (q == old_dir->file_map.end()) { | |
3380 | dout(20) << __func__ << " dir " << old_dirname << " (" << old_dir | |
3381 | << ") file " << old_filename | |
3382 | << " not found" << dendl; | |
3383 | return -ENOENT; | |
3384 | } | |
3385 | FileRef file = q->second; | |
3386 | ||
3387 | p = dir_map.find(new_dirname); | |
3388 | if (p == dir_map.end()) { | |
3389 | dout(20) << __func__ << " dir " << new_dirname << " not found" << dendl; | |
3390 | return -ENOENT; | |
3391 | } | |
3392 | DirRef new_dir = p->second; | |
3393 | q = new_dir->file_map.find(new_filename); | |
3394 | if (q != new_dir->file_map.end()) { | |
3395 | dout(20) << __func__ << " dir " << new_dirname << " (" << old_dir | |
3396 | << ") file " << new_filename | |
3397 | << " already exists, unlinking" << dendl; | |
11fdf7f2 | 3398 | ceph_assert(q->second != file); |
7c673cae FG |
3399 | log_t.op_dir_unlink(new_dirname, new_filename); |
3400 | _drop_link(q->second); | |
3401 | } | |
3402 | ||
3403 | dout(10) << __func__ << " " << new_dirname << "/" << new_filename << " " | |
3404 | << " " << file->fnode << dendl; | |
3405 | ||
b3b6e05e TL |
3406 | new_dir->file_map[string{new_filename}] = file; |
3407 | old_dir->file_map.erase(string{old_filename}); | |
7c673cae FG |
3408 | |
3409 | log_t.op_dir_link(new_dirname, new_filename, file->fnode.ino); | |
3410 | log_t.op_dir_unlink(old_dirname, old_filename); | |
3411 | return 0; | |
3412 | } | |
3413 | ||
b3b6e05e | 3414 | int BlueFS::mkdir(std::string_view dirname) |
7c673cae | 3415 | { |
11fdf7f2 | 3416 | std::lock_guard l(lock); |
7c673cae FG |
3417 | dout(10) << __func__ << " " << dirname << dendl; |
3418 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3419 | if (p != dir_map.end()) { | |
3420 | dout(20) << __func__ << " dir " << dirname << " exists" << dendl; | |
3421 | return -EEXIST; | |
3422 | } | |
b3b6e05e | 3423 | dir_map[string{dirname}] = ceph::make_ref<Dir>(); |
7c673cae FG |
3424 | log_t.op_dir_create(dirname); |
3425 | return 0; | |
3426 | } | |
3427 | ||
b3b6e05e | 3428 | int BlueFS::rmdir(std::string_view dirname) |
7c673cae | 3429 | { |
11fdf7f2 | 3430 | std::lock_guard l(lock); |
7c673cae | 3431 | dout(10) << __func__ << " " << dirname << dendl; |
b3b6e05e | 3432 | auto p = dir_map.find(dirname); |
7c673cae FG |
3433 | if (p == dir_map.end()) { |
3434 | dout(20) << __func__ << " dir " << dirname << " does not exist" << dendl; | |
3435 | return -ENOENT; | |
3436 | } | |
3437 | DirRef dir = p->second; | |
3438 | if (!dir->file_map.empty()) { | |
3439 | dout(20) << __func__ << " dir " << dirname << " not empty" << dendl; | |
3440 | return -ENOTEMPTY; | |
3441 | } | |
b3b6e05e | 3442 | dir_map.erase(string{dirname}); |
7c673cae FG |
3443 | log_t.op_dir_remove(dirname); |
3444 | return 0; | |
3445 | } | |
3446 | ||
b3b6e05e | 3447 | bool BlueFS::dir_exists(std::string_view dirname) |
7c673cae | 3448 | { |
11fdf7f2 | 3449 | std::lock_guard l(lock); |
7c673cae FG |
3450 | map<string,DirRef>::iterator p = dir_map.find(dirname); |
3451 | bool exists = p != dir_map.end(); | |
3452 | dout(10) << __func__ << " " << dirname << " = " << (int)exists << dendl; | |
3453 | return exists; | |
3454 | } | |
3455 | ||
b3b6e05e | 3456 | int BlueFS::stat(std::string_view dirname, std::string_view filename, |
7c673cae FG |
3457 | uint64_t *size, utime_t *mtime) |
3458 | { | |
11fdf7f2 | 3459 | std::lock_guard l(lock); |
7c673cae FG |
3460 | dout(10) << __func__ << " " << dirname << "/" << filename << dendl; |
3461 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3462 | if (p == dir_map.end()) { | |
3463 | dout(20) << __func__ << " dir " << dirname << " not found" << dendl; | |
3464 | return -ENOENT; | |
3465 | } | |
3466 | DirRef dir = p->second; | |
3467 | map<string,FileRef>::iterator q = dir->file_map.find(filename); | |
3468 | if (q == dir->file_map.end()) { | |
3469 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3470 | << ") file " << filename | |
3471 | << " not found" << dendl; | |
3472 | return -ENOENT; | |
3473 | } | |
3474 | File *file = q->second.get(); | |
3475 | dout(10) << __func__ << " " << dirname << "/" << filename | |
3476 | << " " << file->fnode << dendl; | |
3477 | if (size) | |
3478 | *size = file->fnode.size; | |
3479 | if (mtime) | |
3480 | *mtime = file->fnode.mtime; | |
3481 | return 0; | |
3482 | } | |
3483 | ||
b3b6e05e | 3484 | int BlueFS::lock_file(std::string_view dirname, std::string_view filename, |
7c673cae FG |
3485 | FileLock **plock) |
3486 | { | |
11fdf7f2 | 3487 | std::lock_guard l(lock); |
7c673cae FG |
3488 | dout(10) << __func__ << " " << dirname << "/" << filename << dendl; |
3489 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3490 | if (p == dir_map.end()) { | |
3491 | dout(20) << __func__ << " dir " << dirname << " not found" << dendl; | |
3492 | return -ENOENT; | |
3493 | } | |
3494 | DirRef dir = p->second; | |
b3b6e05e | 3495 | auto q = dir->file_map.find(filename); |
9f95a23c | 3496 | FileRef file; |
7c673cae FG |
3497 | if (q == dir->file_map.end()) { |
3498 | dout(20) << __func__ << " dir " << dirname << " (" << dir | |
3499 | << ") file " << filename | |
3500 | << " not found, creating" << dendl; | |
9f95a23c | 3501 | file = ceph::make_ref<File>(); |
7c673cae FG |
3502 | file->fnode.ino = ++ino_last; |
3503 | file->fnode.mtime = ceph_clock_now(); | |
3504 | file_map[ino_last] = file; | |
b3b6e05e | 3505 | dir->file_map[string{filename}] = file; |
7c673cae FG |
3506 | ++file->refs; |
3507 | log_t.op_file_update(file->fnode); | |
3508 | log_t.op_dir_link(dirname, filename, file->fnode.ino); | |
3509 | } else { | |
9f95a23c | 3510 | file = q->second; |
7c673cae FG |
3511 | if (file->locked) { |
3512 | dout(10) << __func__ << " already locked" << dendl; | |
11fdf7f2 | 3513 | return -ENOLCK; |
7c673cae FG |
3514 | } |
3515 | } | |
3516 | file->locked = true; | |
3517 | *plock = new FileLock(file); | |
3518 | dout(10) << __func__ << " locked " << file->fnode | |
3519 | << " with " << *plock << dendl; | |
3520 | return 0; | |
3521 | } | |
3522 | ||
3523 | int BlueFS::unlock_file(FileLock *fl) | |
3524 | { | |
11fdf7f2 | 3525 | std::lock_guard l(lock); |
7c673cae | 3526 | dout(10) << __func__ << " " << fl << " on " << fl->file->fnode << dendl; |
11fdf7f2 | 3527 | ceph_assert(fl->file->locked); |
7c673cae FG |
3528 | fl->file->locked = false; |
3529 | delete fl; | |
3530 | return 0; | |
3531 | } | |
3532 | ||
b3b6e05e | 3533 | int BlueFS::readdir(std::string_view dirname, vector<string> *ls) |
7c673cae | 3534 | { |
b3b6e05e TL |
3535 | // dirname may contain a trailing / |
3536 | if (!dirname.empty() && dirname.back() == '/') { | |
3537 | dirname.remove_suffix(1); | |
3538 | } | |
11fdf7f2 | 3539 | std::lock_guard l(lock); |
7c673cae FG |
3540 | dout(10) << __func__ << " " << dirname << dendl; |
3541 | if (dirname.empty()) { | |
3542 | // list dirs | |
3543 | ls->reserve(dir_map.size() + 2); | |
3544 | for (auto& q : dir_map) { | |
3545 | ls->push_back(q.first); | |
3546 | } | |
3547 | } else { | |
3548 | // list files in dir | |
3549 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3550 | if (p == dir_map.end()) { | |
3551 | dout(20) << __func__ << " dir " << dirname << " not found" << dendl; | |
3552 | return -ENOENT; | |
3553 | } | |
3554 | DirRef dir = p->second; | |
3555 | ls->reserve(dir->file_map.size() + 2); | |
3556 | for (auto& q : dir->file_map) { | |
3557 | ls->push_back(q.first); | |
3558 | } | |
3559 | } | |
3560 | ls->push_back("."); | |
3561 | ls->push_back(".."); | |
3562 | return 0; | |
3563 | } | |
3564 | ||
b3b6e05e | 3565 | int BlueFS::unlink(std::string_view dirname, std::string_view filename) |
7c673cae | 3566 | { |
11fdf7f2 | 3567 | std::lock_guard l(lock); |
7c673cae FG |
3568 | dout(10) << __func__ << " " << dirname << "/" << filename << dendl; |
3569 | map<string,DirRef>::iterator p = dir_map.find(dirname); | |
3570 | if (p == dir_map.end()) { | |
3571 | dout(20) << __func__ << " dir " << dirname << " not found" << dendl; | |
3572 | return -ENOENT; | |
3573 | } | |
3574 | DirRef dir = p->second; | |
3575 | map<string,FileRef>::iterator q = dir->file_map.find(filename); | |
3576 | if (q == dir->file_map.end()) { | |
3577 | dout(20) << __func__ << " file " << dirname << "/" << filename | |
3578 | << " not found" << dendl; | |
3579 | return -ENOENT; | |
3580 | } | |
3581 | FileRef file = q->second; | |
3582 | if (file->locked) { | |
3583 | dout(20) << __func__ << " file " << dirname << "/" << filename | |
3584 | << " is locked" << dendl; | |
3585 | return -EBUSY; | |
3586 | } | |
b3b6e05e | 3587 | dir->file_map.erase(string{filename}); |
7c673cae FG |
3588 | log_t.op_dir_unlink(dirname, filename); |
3589 | _drop_link(file); | |
3590 | return 0; | |
3591 | } | |
d2e6a577 FG |
3592 | |
3593 | bool BlueFS::wal_is_rotational() | |
3594 | { | |
94b18763 FG |
3595 | if (bdev[BDEV_WAL]) { |
3596 | return bdev[BDEV_WAL]->is_rotational(); | |
3597 | } else if (bdev[BDEV_DB]) { | |
3598 | return bdev[BDEV_DB]->is_rotational(); | |
3599 | } | |
3600 | return bdev[BDEV_SLOW]->is_rotational(); | |
d2e6a577 | 3601 | } |
9f95a23c | 3602 | |
f6b5b4d7 TL |
3603 | /* |
3604 | Algorithm. | |
3605 | do_replay_recovery_read is used when bluefs log abruptly ends, but it seems that more data should be there. | |
3606 | Idea is to search disk for definiton of extents that will be accompanied with bluefs log in future, | |
3607 | and try if using it will produce healthy bluefs transaction. | |
3608 | We encode already known bluefs log extents and search disk for these bytes. | |
3609 | When we find it, we decode following bytes as extent. | |
3610 | We read that whole extent and then check if merged with existing log part gives a proper bluefs transaction. | |
3611 | */ | |
3612 | int BlueFS::do_replay_recovery_read(FileReader *log_reader, | |
3613 | size_t replay_pos, | |
3614 | size_t read_offset, | |
3615 | size_t read_len, | |
3616 | bufferlist* bl) { | |
3617 | dout(1) << __func__ << " replay_pos=0x" << std::hex << replay_pos << | |
3618 | " needs 0x" << read_offset << "~" << read_len << std::dec << dendl; | |
3619 | ||
3620 | bluefs_fnode_t& log_fnode = log_reader->file->fnode; | |
3621 | bufferlist bin_extents; | |
f67539c2 | 3622 | ::encode(log_fnode.extents, bin_extents); |
f6b5b4d7 TL |
3623 | dout(2) << __func__ << " log file encoded extents length = " << bin_extents.length() << dendl; |
3624 | ||
3625 | // cannot process if too small to effectively search | |
3626 | ceph_assert(bin_extents.length() >= 32); | |
3627 | bufferlist last_32; | |
3628 | last_32.substr_of(bin_extents, bin_extents.length() - 32, 32); | |
3629 | ||
3630 | //read fixed part from replay_pos to end of bluefs_log extents | |
3631 | bufferlist fixed; | |
3632 | uint64_t e_off = 0; | |
3633 | auto e = log_fnode.seek(replay_pos, &e_off); | |
3634 | ceph_assert(e != log_fnode.extents.end()); | |
3635 | int r = bdev[e->bdev]->read(e->offset + e_off, e->length - e_off, &fixed, ioc[e->bdev], | |
3636 | cct->_conf->bluefs_buffered_io); | |
3637 | ceph_assert(r == 0); | |
3638 | //capture dev of last good extent | |
3639 | uint8_t last_e_dev = e->bdev; | |
3640 | uint64_t last_e_off = e->offset; | |
3641 | ++e; | |
3642 | while (e != log_fnode.extents.end()) { | |
3643 | r = bdev[e->bdev]->read(e->offset, e->length, &fixed, ioc[e->bdev], | |
3644 | cct->_conf->bluefs_buffered_io); | |
3645 | ceph_assert(r == 0); | |
3646 | last_e_dev = e->bdev; | |
3647 | ++e; | |
3648 | } | |
3649 | ceph_assert(replay_pos + fixed.length() == read_offset); | |
3650 | ||
3651 | dout(2) << __func__ << " valid data in log = " << fixed.length() << dendl; | |
3652 | ||
3653 | struct compare { | |
3654 | bool operator()(const bluefs_extent_t& a, const bluefs_extent_t& b) const { | |
3655 | if (a.bdev < b.bdev) return true; | |
3656 | if (a.offset < b.offset) return true; | |
3657 | return a.length < b.length; | |
3658 | } | |
3659 | }; | |
3660 | std::set<bluefs_extent_t, compare> extents_rejected; | |
3661 | for (int dcnt = 0; dcnt < 3; dcnt++) { | |
3662 | uint8_t dev = (last_e_dev + dcnt) % MAX_BDEV; | |
3663 | if (bdev[dev] == nullptr) continue; | |
3664 | dout(2) << __func__ << " processing " << get_device_name(dev) << dendl; | |
3665 | interval_set<uint64_t> disk_regions; | |
3666 | disk_regions.insert(0, bdev[dev]->get_size()); | |
3667 | for (auto f : file_map) { | |
3668 | auto& e = f.second->fnode.extents; | |
3669 | for (auto& p : e) { | |
3670 | if (p.bdev == dev) { | |
3671 | disk_regions.erase(p.offset, p.length); | |
3672 | } | |
3673 | } | |
3674 | } | |
3675 | size_t disk_regions_count = disk_regions.num_intervals(); | |
3676 | dout(5) << __func__ << " " << disk_regions_count << " regions to scan on " << get_device_name(dev) << dendl; | |
3677 | ||
3678 | auto reg = disk_regions.lower_bound(last_e_off); | |
3679 | //for all except first, start from beginning | |
3680 | last_e_off = 0; | |
3681 | if (reg == disk_regions.end()) { | |
3682 | reg = disk_regions.begin(); | |
3683 | } | |
3684 | const uint64_t chunk_size = 4 * 1024 * 1024; | |
3685 | const uint64_t page_size = 4096; | |
3686 | const uint64_t max_extent_size = 16; | |
3687 | uint64_t overlay_size = last_32.length() + max_extent_size; | |
3688 | for (size_t i = 0; i < disk_regions_count; reg++, i++) { | |
3689 | if (reg == disk_regions.end()) { | |
3690 | reg = disk_regions.begin(); | |
3691 | } | |
3692 | uint64_t pos = reg.get_start(); | |
3693 | uint64_t len = reg.get_len(); | |
3694 | ||
3695 | std::unique_ptr<char[]> raw_data_p{new char[page_size + chunk_size]}; | |
3696 | char* raw_data = raw_data_p.get(); | |
3697 | memset(raw_data, 0, page_size); | |
3698 | ||
3699 | while (len > last_32.length()) { | |
3700 | uint64_t chunk_len = len > chunk_size ? chunk_size : len; | |
3701 | dout(5) << __func__ << " read " | |
3702 | << get_device_name(dev) << ":0x" << std::hex << pos << "+" << chunk_len << std::dec << dendl; | |
3703 | r = bdev[dev]->read_random(pos, chunk_len, raw_data + page_size, cct->_conf->bluefs_buffered_io); | |
3704 | ceph_assert(r == 0); | |
3705 | ||
3706 | //search for fixed_last_32 | |
3707 | char* chunk_b = raw_data + page_size; | |
3708 | char* chunk_e = chunk_b + chunk_len; | |
3709 | ||
3710 | char* search_b = chunk_b - overlay_size; | |
3711 | char* search_e = chunk_e; | |
3712 | ||
3713 | for (char* sp = search_b; ; sp += last_32.length()) { | |
3714 | sp = (char*)memmem(sp, search_e - sp, last_32.c_str(), last_32.length()); | |
3715 | if (sp == nullptr) { | |
3716 | break; | |
3717 | } | |
3718 | ||
3719 | char* n = sp + last_32.length(); | |
3720 | dout(5) << __func__ << " checking location 0x" << std::hex << pos + (n - chunk_b) << std::dec << dendl; | |
3721 | bufferlist test; | |
3722 | test.append(n, std::min<size_t>(max_extent_size, chunk_e - n)); | |
3723 | bluefs_extent_t ne; | |
3724 | try { | |
3725 | bufferlist::const_iterator p = test.begin(); | |
f67539c2 | 3726 | ::decode(ne, p); |
f6b5b4d7 TL |
3727 | } catch (buffer::error& e) { |
3728 | continue; | |
3729 | } | |
3730 | if (extents_rejected.count(ne) != 0) { | |
3731 | dout(5) << __func__ << " extent " << ne << " already refected" <<dendl; | |
3732 | continue; | |
3733 | } | |
3734 | //insert as rejected already. if we succeed, it wouldn't make difference. | |
3735 | extents_rejected.insert(ne); | |
3736 | ||
3737 | if (ne.bdev >= MAX_BDEV || | |
3738 | bdev[ne.bdev] == nullptr || | |
3739 | ne.length > 16 * 1024 * 1024 || | |
3740 | (ne.length & 4095) != 0 || | |
3741 | ne.offset + ne.length > bdev[ne.bdev]->get_size() || | |
3742 | (ne.offset & 4095) != 0) { | |
3743 | dout(5) << __func__ << " refusing extent " << ne << dendl; | |
3744 | continue; | |
3745 | } | |
3746 | dout(5) << __func__ << " checking extent " << ne << dendl; | |
3747 | ||
3748 | //read candidate extent - whole | |
3749 | bufferlist candidate; | |
3750 | candidate.append(fixed); | |
3751 | r = bdev[ne.bdev]->read(ne.offset, ne.length, &candidate, ioc[ne.bdev], | |
3752 | cct->_conf->bluefs_buffered_io); | |
3753 | ceph_assert(r == 0); | |
3754 | ||
3755 | //check if transaction & crc is ok | |
3756 | bluefs_transaction_t t; | |
3757 | try { | |
f67539c2 TL |
3758 | bufferlist::const_iterator p = candidate.begin(); |
3759 | ::decode(t, p); | |
f6b5b4d7 TL |
3760 | } |
3761 | catch (buffer::error& e) { | |
3762 | dout(5) << __func__ << " failed match" << dendl; | |
3763 | continue; | |
3764 | } | |
3765 | ||
3766 | //success, it seems a probable candidate | |
3767 | uint64_t l = std::min<uint64_t>(ne.length, read_len); | |
3768 | //trim to required size | |
3769 | bufferlist requested_read; | |
3770 | requested_read.substr_of(candidate, fixed.length(), l); | |
3771 | bl->append(requested_read); | |
3772 | dout(5) << __func__ << " successful extension of log " << l << "/" << read_len << dendl; | |
3773 | log_fnode.append_extent(ne); | |
3774 | log_fnode.recalc_allocated(); | |
3775 | log_reader->buf.pos += l; | |
3776 | return l; | |
3777 | } | |
3778 | //save overlay for next search | |
3779 | memcpy(search_b, chunk_e - overlay_size, overlay_size); | |
3780 | pos += chunk_len; | |
3781 | len -= chunk_len; | |
3782 | } | |
3783 | } | |
3784 | } | |
3785 | return 0; | |
3786 | } | |
3787 | ||
f67539c2 | 3788 | size_t BlueFS::probe_alloc_avail(int dev, uint64_t alloc_size) |
9f95a23c | 3789 | { |
f67539c2 TL |
3790 | size_t total = 0; |
3791 | auto iterated_allocation = [&](size_t off, size_t len) { | |
3792 | //only count in size that is alloc_size aligned | |
3793 | size_t dist_to_alignment; | |
3794 | size_t offset_in_block = off & (alloc_size - 1); | |
3795 | if (offset_in_block == 0) | |
3796 | dist_to_alignment = 0; | |
3797 | else | |
3798 | dist_to_alignment = alloc_size - offset_in_block; | |
3799 | if (dist_to_alignment >= len) | |
3800 | return; | |
3801 | len -= dist_to_alignment; | |
3802 | total += p2align(len, alloc_size); | |
3803 | }; | |
3804 | if (alloc[dev]) { | |
3805 | alloc[dev]->dump(iterated_allocation); | |
9f95a23c | 3806 | } |
f67539c2 | 3807 | return total; |
9f95a23c | 3808 | } |
9f95a23c TL |
3809 | // =============================================== |
3810 | // OriginalVolumeSelector | |
3811 | ||
f6b5b4d7 TL |
3812 | void* OriginalVolumeSelector::get_hint_for_log() const { |
3813 | return reinterpret_cast<void*>(BlueFS::BDEV_WAL); | |
9f95a23c | 3814 | } |
b3b6e05e | 3815 | void* OriginalVolumeSelector::get_hint_by_dir(std::string_view dirname) const { |
9f95a23c TL |
3816 | uint8_t res = BlueFS::BDEV_DB; |
3817 | if (dirname.length() > 5) { | |
3818 | // the "db.slow" and "db.wal" directory names are hard-coded at | |
3819 | // match up with bluestore. the slow device is always the second | |
3820 | // one (when a dedicated block.db device is present and used at | |
3821 | // bdev 0). the wal device is always last. | |
3822 | if (boost::algorithm::ends_with(dirname, ".slow")) { | |
3823 | res = BlueFS::BDEV_SLOW; | |
3824 | } | |
3825 | else if (boost::algorithm::ends_with(dirname, ".wal")) { | |
3826 | res = BlueFS::BDEV_WAL; | |
3827 | } | |
3828 | } | |
3829 | return reinterpret_cast<void*>(res); | |
3830 | } | |
3831 | ||
3832 | uint8_t OriginalVolumeSelector::select_prefer_bdev(void* hint) | |
3833 | { | |
3834 | return (uint8_t)(reinterpret_cast<uint64_t>(hint)); | |
3835 | } | |
3836 | ||
3837 | void OriginalVolumeSelector::get_paths(const std::string& base, paths& res) const | |
3838 | { | |
3839 | res.emplace_back(base, db_total); | |
522d829b TL |
3840 | res.emplace_back(base + ".slow", |
3841 | slow_total ? slow_total : db_total); // use fake non-zero value if needed to | |
3842 | // avoid RocksDB complains | |
9f95a23c TL |
3843 | } |
3844 | ||
3845 | #undef dout_prefix | |
3846 | #define dout_prefix *_dout << "OriginalVolumeSelector: " | |
3847 | ||
3848 | void OriginalVolumeSelector::dump(ostream& sout) { | |
3849 | sout<< "wal_total:" << wal_total | |
3850 | << ", db_total:" << db_total | |
3851 | << ", slow_total:" << slow_total | |
3852 | << std::endl; | |
3853 | } | |
f67539c2 TL |
3854 | |
3855 | // =============================================== | |
3856 | // FitToFastVolumeSelector | |
3857 | ||
3858 | void FitToFastVolumeSelector::get_paths(const std::string& base, paths& res) const { | |
3859 | res.emplace_back(base, 1); // size of the last db_path has no effect | |
3860 | } |