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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- | |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include "cls/journal/cls_journal_client.h" | |
5 | #include "cls/rbd/cls_rbd_client.h" | |
6 | #include "cls/rbd/cls_rbd_types.h" | |
7 | #include "test/librbd/test_fixture.h" | |
8 | #include "test/librbd/test_support.h" | |
9 | #include "include/rbd/librbd.h" | |
10 | #include "librbd/ExclusiveLock.h" | |
11 | #include "librbd/ImageState.h" | |
12 | #include "librbd/ImageWatcher.h" | |
13 | #include "librbd/internal.h" | |
14 | #include "librbd/ObjectMap.h" | |
15 | #include "librbd/Operations.h" | |
16 | #include "librbd/api/DiffIterate.h" | |
17 | #include "librbd/api/Image.h" | |
18 | #include "librbd/api/Migration.h" | |
19 | #include "librbd/api/PoolMetadata.h" | |
20 | #include "librbd/api/Snapshot.h" | |
21 | #include "librbd/io/AioCompletion.h" | |
22 | #include "librbd/io/ImageRequest.h" | |
23 | #include "librbd/io/ImageRequestWQ.h" | |
24 | #include "osdc/Striper.h" | |
25 | #include "common/Cond.h" | |
26 | #include <boost/scope_exit.hpp> | |
27 | #include <boost/algorithm/string/predicate.hpp> | |
28 | #include <boost/assign/list_of.hpp> | |
29 | #include <utility> | |
30 | #include <vector> | |
31 | ||
32 | void register_test_internal() { | |
33 | } | |
34 | ||
35 | class TestInternal : public TestFixture { | |
36 | public: | |
37 | ||
38 | TestInternal() {} | |
39 | ||
40 | typedef std::vector<std::pair<std::string, bool> > Snaps; | |
41 | ||
42 | void TearDown() override { | |
43 | unlock_image(); | |
44 | for (Snaps::iterator iter = m_snaps.begin(); iter != m_snaps.end(); ++iter) { | |
45 | librbd::ImageCtx *ictx; | |
46 | EXPECT_EQ(0, open_image(m_image_name, &ictx)); | |
47 | if (iter->second) { | |
48 | EXPECT_EQ(0, | |
49 | ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), | |
50 | iter->first.c_str())); | |
51 | } | |
52 | EXPECT_EQ(0, | |
53 | ictx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
54 | iter->first.c_str())); | |
55 | } | |
56 | ||
57 | TestFixture::TearDown(); | |
58 | } | |
59 | ||
60 | int create_snapshot(const char *snap_name, bool snap_protect) { | |
61 | librbd::ImageCtx *ictx; | |
62 | int r = open_image(m_image_name, &ictx); | |
63 | if (r < 0) { | |
64 | return r; | |
65 | } | |
66 | ||
67 | r = snap_create(*ictx, snap_name); | |
68 | if (r < 0) { | |
69 | return r; | |
70 | } | |
71 | ||
72 | m_snaps.push_back(std::make_pair(snap_name, snap_protect)); | |
73 | if (snap_protect) { | |
74 | r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); | |
75 | if (r < 0) { | |
76 | return r; | |
77 | } | |
78 | } | |
79 | close_image(ictx); | |
80 | return 0; | |
81 | } | |
82 | ||
83 | Snaps m_snaps; | |
84 | }; | |
85 | ||
86 | class DummyContext : public Context { | |
87 | public: | |
88 | void finish(int r) override { | |
89 | } | |
90 | }; | |
91 | ||
92 | void generate_random_iomap(librbd::Image &image, int num_objects, int object_size, | |
93 | int max_count, map<uint64_t, uint64_t> &iomap) | |
94 | { | |
95 | uint64_t stripe_unit, stripe_count; | |
96 | ||
97 | stripe_unit = image.get_stripe_unit(); | |
98 | stripe_count = image.get_stripe_count(); | |
99 | ||
100 | while (max_count-- > 0) { | |
101 | // generate random image offset based on base random object | |
102 | // number and object offset and then map that back to an | |
103 | // object number based on stripe unit and count. | |
104 | uint64_t ono = rand() % num_objects; | |
105 | uint64_t offset = rand() % (object_size - TEST_IO_SIZE); | |
106 | uint64_t imageoff = (ono * object_size) + offset; | |
107 | ||
108 | file_layout_t layout; | |
109 | layout.object_size = object_size; | |
110 | layout.stripe_unit = stripe_unit; | |
111 | layout.stripe_count = stripe_count; | |
112 | ||
113 | vector<ObjectExtent> ex; | |
114 | Striper::file_to_extents(g_ceph_context, 1, &layout, imageoff, TEST_IO_SIZE, 0, ex); | |
115 | ||
116 | // lets not worry if IO spans multiple extents (>1 object). in such | |
117 | // as case we would perform the write multiple times to the same | |
118 | // offset, but we record all objects that would be generated with | |
119 | // this IO. TODO: fix this if such a need is required by your | |
120 | // test. | |
121 | vector<ObjectExtent>::iterator it; | |
122 | map<uint64_t, uint64_t> curr_iomap; | |
123 | for (it = ex.begin(); it != ex.end(); ++it) { | |
124 | if (iomap.find((*it).objectno) != iomap.end()) { | |
125 | break; | |
126 | } | |
127 | ||
128 | curr_iomap.insert(make_pair((*it).objectno, imageoff)); | |
129 | } | |
130 | ||
131 | if (it == ex.end()) { | |
132 | iomap.insert(curr_iomap.begin(), curr_iomap.end()); | |
133 | } | |
134 | } | |
135 | } | |
136 | ||
137 | static bool is_sparsify_supported(librados::IoCtx &ioctx, | |
138 | const std::string &oid) { | |
139 | EXPECT_EQ(0, ioctx.create(oid, true)); | |
140 | int r = librbd::cls_client::sparsify(&ioctx, oid, 16, true); | |
141 | EXPECT_TRUE(r == 0 || r == -EOPNOTSUPP); | |
142 | ioctx.remove(oid); | |
143 | ||
144 | return (r == 0); | |
145 | } | |
146 | ||
147 | static bool is_sparse_read_supported(librados::IoCtx &ioctx, | |
148 | const std::string &oid) { | |
149 | EXPECT_EQ(0, ioctx.create(oid, true)); | |
150 | bufferlist inbl; | |
151 | inbl.append(std::string(1, 'X')); | |
152 | EXPECT_EQ(0, ioctx.write(oid, inbl, inbl.length(), 1)); | |
153 | EXPECT_EQ(0, ioctx.write(oid, inbl, inbl.length(), 3)); | |
154 | ||
155 | std::map<uint64_t, uint64_t> m; | |
156 | bufferlist outbl; | |
157 | int r = ioctx.sparse_read(oid, m, outbl, 4, 0); | |
158 | ioctx.remove(oid); | |
159 | ||
160 | int expected_r = 2; | |
161 | std::map<uint64_t, uint64_t> expected_m = {{1, 1}, {3, 1}}; | |
162 | bufferlist expected_outbl; | |
163 | expected_outbl.append(std::string(2, 'X')); | |
164 | ||
165 | return (r == expected_r && m == expected_m && | |
166 | outbl.contents_equal(expected_outbl)); | |
167 | } | |
168 | ||
169 | TEST_F(TestInternal, OpenByID) { | |
170 | REQUIRE_FORMAT_V2(); | |
171 | ||
172 | librbd::ImageCtx *ictx; | |
173 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
174 | std::string id = ictx->id; | |
175 | close_image(ictx); | |
176 | ||
177 | ictx = new librbd::ImageCtx("", id, nullptr, m_ioctx, true); | |
178 | ASSERT_EQ(0, ictx->state->open(0)); | |
179 | ASSERT_EQ(ictx->name, m_image_name); | |
180 | close_image(ictx); | |
181 | } | |
182 | ||
183 | TEST_F(TestInternal, OpenSnapDNE) { | |
184 | librbd::ImageCtx *ictx; | |
185 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
186 | ||
187 | ictx = new librbd::ImageCtx(m_image_name, "", "unknown_snap", m_ioctx, true); | |
188 | ASSERT_EQ(-ENOENT, ictx->state->open(librbd::OPEN_FLAG_SKIP_OPEN_PARENT)); | |
189 | } | |
190 | ||
191 | TEST_F(TestInternal, IsExclusiveLockOwner) { | |
192 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
193 | ||
194 | librbd::ImageCtx *ictx; | |
195 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
196 | ||
197 | bool is_owner; | |
198 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
199 | ASSERT_FALSE(is_owner); | |
200 | ||
201 | C_SaferCond ctx; | |
202 | { | |
203 | std::unique_lock l{ictx->owner_lock}; | |
204 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
205 | } | |
206 | ASSERT_EQ(0, ctx.wait()); | |
207 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
208 | ASSERT_TRUE(is_owner); | |
209 | } | |
210 | ||
211 | TEST_F(TestInternal, ResizeLocksImage) { | |
212 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
213 | ||
214 | librbd::ImageCtx *ictx; | |
215 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
216 | ||
217 | librbd::NoOpProgressContext no_op; | |
218 | ASSERT_EQ(0, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
219 | ||
220 | bool is_owner; | |
221 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
222 | ASSERT_TRUE(is_owner); | |
223 | } | |
224 | ||
225 | TEST_F(TestInternal, ResizeFailsToLockImage) { | |
226 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
227 | ||
228 | librbd::ImageCtx *ictx; | |
229 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
230 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
231 | ||
232 | librbd::NoOpProgressContext no_op; | |
233 | ASSERT_EQ(-EROFS, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
234 | } | |
235 | ||
236 | TEST_F(TestInternal, SnapCreateLocksImage) { | |
237 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
238 | ||
239 | librbd::ImageCtx *ictx; | |
240 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
241 | ||
242 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
243 | BOOST_SCOPE_EXIT( (ictx) ) { | |
244 | ASSERT_EQ(0, | |
245 | ictx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
246 | "snap1")); | |
247 | } BOOST_SCOPE_EXIT_END; | |
248 | ||
249 | bool is_owner; | |
250 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
251 | ASSERT_TRUE(is_owner); | |
252 | } | |
253 | ||
254 | TEST_F(TestInternal, SnapCreateFailsToLockImage) { | |
255 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
256 | ||
257 | librbd::ImageCtx *ictx; | |
258 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
259 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
260 | ||
261 | ASSERT_EQ(-EROFS, snap_create(*ictx, "snap1")); | |
262 | } | |
263 | ||
264 | TEST_F(TestInternal, SnapRollbackLocksImage) { | |
265 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
266 | ||
267 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
268 | ||
269 | librbd::ImageCtx *ictx; | |
270 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
271 | ||
272 | librbd::NoOpProgressContext no_op; | |
273 | ASSERT_EQ(0, ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), | |
274 | "snap1", | |
275 | no_op)); | |
276 | ||
277 | bool is_owner; | |
278 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
279 | ASSERT_TRUE(is_owner); | |
280 | } | |
281 | ||
282 | TEST_F(TestInternal, SnapRollbackFailsToLockImage) { | |
283 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
284 | ||
285 | ||
286 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
287 | ||
288 | librbd::ImageCtx *ictx; | |
289 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
290 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
291 | ||
292 | librbd::NoOpProgressContext no_op; | |
293 | ASSERT_EQ(-EROFS, | |
294 | ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), | |
295 | "snap1", | |
296 | no_op)); | |
297 | } | |
298 | ||
299 | TEST_F(TestInternal, SnapSetReleasesLock) { | |
300 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
301 | ||
302 | ASSERT_EQ(0, create_snapshot("snap1", false)); | |
303 | ||
304 | librbd::ImageCtx *ictx; | |
305 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
306 | ASSERT_EQ(0, librbd::api::Image<>::snap_set( | |
307 | ictx, cls::rbd::UserSnapshotNamespace(), "snap1")); | |
308 | ||
309 | bool is_owner; | |
310 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
311 | ASSERT_FALSE(is_owner); | |
312 | } | |
313 | ||
314 | TEST_F(TestInternal, FlattenLocksImage) { | |
315 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_LAYERING); | |
316 | ||
317 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
318 | ||
319 | librbd::ImageCtx *ictx; | |
320 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
321 | ||
322 | uint64_t features; | |
323 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
324 | ||
325 | std::string clone_name = get_temp_image_name(); | |
326 | int order = ictx->order; | |
327 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
328 | clone_name.c_str(), features, &order, 0, 0)); | |
329 | ||
330 | librbd::ImageCtx *ictx2; | |
331 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
332 | ||
333 | librbd::NoOpProgressContext no_op; | |
334 | ASSERT_EQ(0, ictx2->operations->flatten(no_op)); | |
335 | ||
336 | bool is_owner; | |
337 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx2, &is_owner)); | |
338 | ASSERT_TRUE(is_owner); | |
339 | } | |
340 | ||
341 | TEST_F(TestInternal, FlattenFailsToLockImage) { | |
342 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_LAYERING); | |
343 | ||
344 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
345 | ||
346 | librbd::ImageCtx *ictx; | |
347 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
348 | ||
349 | uint64_t features; | |
350 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
351 | ||
352 | std::string clone_name = get_temp_image_name(); | |
353 | int order = ictx->order; | |
354 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
355 | clone_name.c_str(), features, &order, 0, 0)); | |
356 | ||
357 | TestInternal *parent = this; | |
358 | librbd::ImageCtx *ictx2 = NULL; | |
359 | BOOST_SCOPE_EXIT( (&m_ioctx) (clone_name) (parent) (&ictx2) ) { | |
360 | if (ictx2 != NULL) { | |
361 | parent->close_image(ictx2); | |
362 | parent->unlock_image(); | |
363 | } | |
364 | librbd::NoOpProgressContext no_op; | |
365 | ASSERT_EQ(0, librbd::api::Image<>::remove(m_ioctx, clone_name, no_op)); | |
366 | } BOOST_SCOPE_EXIT_END; | |
367 | ||
368 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
369 | ASSERT_EQ(0, lock_image(*ictx2, LOCK_EXCLUSIVE, "manually locked")); | |
370 | ||
371 | librbd::NoOpProgressContext no_op; | |
372 | ASSERT_EQ(-EROFS, ictx2->operations->flatten(no_op)); | |
373 | } | |
374 | ||
375 | TEST_F(TestInternal, AioWriteRequestsLock) { | |
376 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
377 | ||
378 | librbd::ImageCtx *ictx; | |
379 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
380 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
381 | ||
382 | std::string buffer(256, '1'); | |
383 | Context *ctx = new DummyContext(); | |
384 | auto c = librbd::io::AioCompletion::create(ctx); | |
385 | c->get(); | |
386 | ||
387 | bufferlist bl; | |
388 | bl.append(buffer); | |
389 | ictx->io_work_queue->aio_write(c, 0, buffer.size(), std::move(bl), 0); | |
390 | ||
391 | bool is_owner; | |
392 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
393 | ASSERT_FALSE(is_owner); | |
394 | ASSERT_FALSE(c->is_complete()); | |
395 | ||
396 | unlock_image(); | |
397 | ASSERT_EQ(0, c->wait_for_complete()); | |
398 | c->put(); | |
399 | } | |
400 | ||
401 | TEST_F(TestInternal, AioDiscardRequestsLock) { | |
402 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
403 | ||
404 | librbd::ImageCtx *ictx; | |
405 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
406 | ASSERT_EQ(0, lock_image(*ictx, LOCK_EXCLUSIVE, "manually locked")); | |
407 | ||
408 | Context *ctx = new DummyContext(); | |
409 | auto c = librbd::io::AioCompletion::create(ctx); | |
410 | c->get(); | |
411 | ictx->io_work_queue->aio_discard(c, 0, 256, false); | |
412 | ||
413 | bool is_owner; | |
414 | ASSERT_EQ(0, librbd::is_exclusive_lock_owner(ictx, &is_owner)); | |
415 | ASSERT_FALSE(is_owner); | |
416 | ASSERT_FALSE(c->is_complete()); | |
417 | ||
418 | unlock_image(); | |
419 | ASSERT_EQ(0, c->wait_for_complete()); | |
420 | c->put(); | |
421 | } | |
422 | ||
423 | TEST_F(TestInternal, CancelAsyncResize) { | |
424 | REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK); | |
425 | ||
426 | librbd::ImageCtx *ictx; | |
427 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
428 | ||
429 | C_SaferCond ctx; | |
430 | { | |
431 | std::unique_lock l{ictx->owner_lock}; | |
432 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
433 | } | |
434 | ||
435 | ASSERT_EQ(0, ctx.wait()); | |
436 | { | |
437 | std::shared_lock owner_locker{ictx->owner_lock}; | |
438 | ASSERT_TRUE(ictx->exclusive_lock->is_lock_owner()); | |
439 | } | |
440 | ||
441 | uint64_t size; | |
442 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
443 | ||
444 | uint32_t attempts = 0; | |
445 | while (attempts++ < 20 && size > 0) { | |
446 | C_SaferCond ctx; | |
447 | librbd::NoOpProgressContext prog_ctx; | |
448 | ||
449 | size -= std::min<uint64_t>(size, 1 << 18); | |
450 | { | |
451 | std::shared_lock l{ictx->owner_lock}; | |
452 | ictx->operations->execute_resize(size, true, prog_ctx, &ctx, 0); | |
453 | } | |
454 | ||
455 | // try to interrupt the in-progress resize | |
456 | ictx->cancel_async_requests(); | |
457 | ||
458 | int r = ctx.wait(); | |
459 | if (r == -ERESTART) { | |
460 | std::cout << "detected canceled async request" << std::endl; | |
461 | break; | |
462 | } | |
463 | ASSERT_EQ(0, r); | |
464 | } | |
465 | } | |
466 | ||
467 | TEST_F(TestInternal, MultipleResize) { | |
468 | librbd::ImageCtx *ictx; | |
469 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
470 | ||
471 | if (ictx->exclusive_lock != nullptr) { | |
472 | C_SaferCond ctx; | |
473 | { | |
474 | std::unique_lock l{ictx->owner_lock}; | |
475 | ictx->exclusive_lock->try_acquire_lock(&ctx); | |
476 | } | |
477 | ||
478 | std::shared_lock owner_locker{ictx->owner_lock}; | |
479 | ASSERT_EQ(0, ctx.wait()); | |
480 | ASSERT_TRUE(ictx->exclusive_lock->is_lock_owner()); | |
481 | } | |
482 | ||
483 | uint64_t size; | |
484 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
485 | uint64_t original_size = size; | |
486 | ||
487 | std::vector<C_SaferCond*> contexts; | |
488 | ||
489 | uint32_t attempts = 0; | |
490 | librbd::NoOpProgressContext prog_ctx; | |
491 | while (size > 0) { | |
492 | uint64_t new_size = original_size; | |
493 | if (attempts++ % 2 == 0) { | |
494 | size -= std::min<uint64_t>(size, 1 << 18); | |
495 | new_size = size; | |
496 | } | |
497 | ||
498 | std::shared_lock l{ictx->owner_lock}; | |
499 | contexts.push_back(new C_SaferCond()); | |
500 | ictx->operations->execute_resize(new_size, true, prog_ctx, contexts.back(), 0); | |
501 | } | |
502 | ||
503 | for (uint32_t i = 0; i < contexts.size(); ++i) { | |
504 | ASSERT_EQ(0, contexts[i]->wait()); | |
505 | delete contexts[i]; | |
506 | } | |
507 | ||
508 | ASSERT_EQ(0, librbd::get_size(ictx, &size)); | |
509 | ASSERT_EQ(0U, size); | |
510 | } | |
511 | ||
512 | TEST_F(TestInternal, Metadata) { | |
513 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
514 | ||
515 | map<string, bool> test_confs = boost::assign::map_list_of( | |
516 | "aaaaaaa", false)( | |
517 | "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", false)( | |
518 | "cccccccccccccc", false); | |
519 | map<string, bool>::iterator it = test_confs.begin(); | |
520 | int r; | |
521 | librbd::ImageCtx *ictx; | |
522 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
523 | ||
524 | r = ictx->operations->metadata_set(it->first, "value1"); | |
525 | ASSERT_EQ(0, r); | |
526 | ++it; | |
527 | r = ictx->operations->metadata_set(it->first, "value2"); | |
528 | ASSERT_EQ(0, r); | |
529 | ++it; | |
530 | r = ictx->operations->metadata_set(it->first, "value3"); | |
531 | ASSERT_EQ(0, r); | |
532 | r = ictx->operations->metadata_set("abcd", "value4"); | |
533 | ASSERT_EQ(0, r); | |
534 | r = ictx->operations->metadata_set("xyz", "value5"); | |
535 | ASSERT_EQ(0, r); | |
536 | map<string, bufferlist> pairs; | |
537 | r = librbd::metadata_list(ictx, "", 0, &pairs); | |
538 | ASSERT_EQ(0, r); | |
539 | ASSERT_EQ(5u, pairs.size()); | |
540 | r = ictx->operations->metadata_remove("abcd"); | |
541 | ASSERT_EQ(0, r); | |
542 | r = ictx->operations->metadata_remove("xyz"); | |
543 | ASSERT_EQ(0, r); | |
544 | pairs.clear(); | |
545 | r = librbd::metadata_list(ictx, "", 0, &pairs); | |
546 | ASSERT_EQ(0, r); | |
547 | ASSERT_EQ(3u, pairs.size()); | |
548 | string val; | |
549 | r = librbd::metadata_get(ictx, it->first, &val); | |
550 | ASSERT_EQ(0, r); | |
551 | ASSERT_STREQ(val.c_str(), "value3"); | |
552 | } | |
553 | ||
554 | TEST_F(TestInternal, MetadataConfApply) { | |
555 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
556 | ||
557 | librbd::ImageCtx *ictx; | |
558 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
559 | ||
560 | ASSERT_EQ(-ENOENT, ictx->operations->metadata_remove("conf_rbd_cache")); | |
561 | ||
562 | bool cache = ictx->cache; | |
563 | std::string rbd_conf_cache = cache ? "true" : "false"; | |
564 | std::string new_rbd_conf_cache = !cache ? "true" : "false"; | |
565 | ||
566 | ASSERT_EQ(0, ictx->operations->metadata_set("conf_rbd_cache", | |
567 | new_rbd_conf_cache)); | |
568 | ASSERT_EQ(!cache, ictx->cache); | |
569 | ||
570 | ASSERT_EQ(0, ictx->operations->metadata_remove("conf_rbd_cache")); | |
571 | ASSERT_EQ(cache, ictx->cache); | |
572 | } | |
573 | ||
574 | TEST_F(TestInternal, SnapshotCopyup) | |
575 | { | |
576 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
577 | ||
578 | librbd::ImageCtx *ictx; | |
579 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
580 | ||
581 | bool sparse_read_supported = is_sparse_read_supported( | |
582 | ictx->data_ctx, ictx->get_object_name(10)); | |
583 | ||
584 | bufferlist bl; | |
585 | bl.append(std::string(256, '1')); | |
586 | ASSERT_EQ(256, ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
587 | ASSERT_EQ(256, ictx->io_work_queue->write(1024, bl.length(), bufferlist{bl}, | |
588 | 0)); | |
589 | ||
590 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
591 | ASSERT_EQ(0, | |
592 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
593 | "snap1")); | |
594 | ||
595 | uint64_t features; | |
596 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
597 | ||
598 | std::string clone_name = get_temp_image_name(); | |
599 | int order = ictx->order; | |
600 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
601 | clone_name.c_str(), features, &order, 0, 0)); | |
602 | ||
603 | librbd::ImageCtx *ictx2; | |
604 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
605 | ||
606 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
607 | ASSERT_EQ(0, snap_create(*ictx2, "snap2")); | |
608 | ||
609 | ASSERT_EQ(256, ictx2->io_work_queue->write(256, bl.length(), bufferlist{bl}, | |
610 | 0)); | |
611 | ||
612 | librados::IoCtx snap_ctx; | |
613 | snap_ctx.dup(ictx2->data_ctx); | |
614 | snap_ctx.snap_set_read(CEPH_SNAPDIR); | |
615 | ||
616 | librados::snap_set_t snap_set; | |
617 | ASSERT_EQ(0, snap_ctx.list_snaps(ictx2->get_object_name(0), &snap_set)); | |
618 | ||
619 | uint64_t copyup_end = ictx2->enable_sparse_copyup ? 1024 + 256 : 1 << order; | |
620 | std::vector< std::pair<uint64_t,uint64_t> > expected_overlap = | |
621 | boost::assign::list_of( | |
622 | std::make_pair(0, 256))( | |
623 | std::make_pair(512, copyup_end - 512)); | |
624 | ASSERT_EQ(2U, snap_set.clones.size()); | |
625 | ASSERT_NE(CEPH_NOSNAP, snap_set.clones[0].cloneid); | |
626 | ASSERT_EQ(2U, snap_set.clones[0].snaps.size()); | |
627 | ASSERT_EQ(expected_overlap, snap_set.clones[0].overlap); | |
628 | ASSERT_EQ(CEPH_NOSNAP, snap_set.clones[1].cloneid); | |
629 | ||
630 | bufferptr read_ptr(256); | |
631 | bufferlist read_bl; | |
632 | read_bl.push_back(read_ptr); | |
633 | ||
634 | std::list<std::string> snaps = {"snap1", "snap2", ""}; | |
635 | librbd::io::ReadResult read_result{&read_bl}; | |
636 | for (std::list<std::string>::iterator it = snaps.begin(); | |
637 | it != snaps.end(); ++it) { | |
638 | const char *snap_name = it->empty() ? NULL : it->c_str(); | |
639 | ASSERT_EQ(0, librbd::api::Image<>::snap_set( | |
640 | ictx2, cls::rbd::UserSnapshotNamespace(), snap_name)); | |
641 | ||
642 | ASSERT_EQ(256, | |
643 | ictx2->io_work_queue->read(0, 256, | |
644 | librbd::io::ReadResult{read_result}, | |
645 | 0)); | |
646 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
647 | ||
648 | ASSERT_EQ(256, | |
649 | ictx2->io_work_queue->read(1024, 256, | |
650 | librbd::io::ReadResult{read_result}, | |
651 | 0)); | |
652 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
653 | ||
654 | ASSERT_EQ(256, | |
655 | ictx2->io_work_queue->read(256, 256, | |
656 | librbd::io::ReadResult{read_result}, | |
657 | 0)); | |
658 | if (snap_name == NULL) { | |
659 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
660 | } else { | |
661 | ASSERT_TRUE(read_bl.is_zero()); | |
662 | } | |
663 | ||
664 | // verify sparseness was preserved | |
665 | { | |
666 | librados::IoCtx io_ctx; | |
667 | io_ctx.dup(m_ioctx); | |
668 | librados::Rados rados(io_ctx); | |
669 | EXPECT_EQ(0, rados.conf_set("rbd_cache", "false")); | |
670 | EXPECT_EQ(0, rados.conf_set("rbd_sparse_read_threshold_bytes", "256")); | |
671 | auto ictx3 = new librbd::ImageCtx(clone_name, "", snap_name, io_ctx, | |
672 | true); | |
673 | ASSERT_EQ(0, ictx3->state->open(0)); | |
674 | BOOST_SCOPE_EXIT(ictx3) { | |
675 | ictx3->state->close(); | |
676 | } BOOST_SCOPE_EXIT_END; | |
677 | std::map<uint64_t, uint64_t> expected_m; | |
678 | bufferlist expected_bl; | |
679 | if (ictx3->enable_sparse_copyup && sparse_read_supported) { | |
680 | if (snap_name == NULL) { | |
681 | expected_m = {{0, 512}, {1024, 256}}; | |
682 | expected_bl.append(std::string(256 * 3, '1')); | |
683 | } else { | |
684 | expected_m = {{0, 256}, {1024, 256}}; | |
685 | expected_bl.append(std::string(256 * 2, '1')); | |
686 | } | |
687 | } else { | |
688 | expected_m = {{0, 1024 + 256}}; | |
689 | if (snap_name == NULL) { | |
690 | expected_bl.append(std::string(256 * 2, '1')); | |
691 | expected_bl.append(std::string(256 * 2, '\0')); | |
692 | expected_bl.append(std::string(256 * 1, '1')); | |
693 | } else { | |
694 | expected_bl.append(std::string(256 * 1, '1')); | |
695 | expected_bl.append(std::string(256 * 3, '\0')); | |
696 | expected_bl.append(std::string(256 * 1, '1')); | |
697 | } | |
698 | } | |
699 | std::map<uint64_t, uint64_t> read_m; | |
700 | librbd::io::ReadResult sparse_read_result{&read_m, &read_bl}; | |
701 | EXPECT_EQ(1024 + 256, | |
702 | ictx3->io_work_queue->read(0, 1024 + 256, | |
703 | librbd::io::ReadResult{sparse_read_result}, | |
704 | 0)); | |
705 | EXPECT_EQ(expected_m, read_m); | |
706 | EXPECT_TRUE(expected_bl.contents_equal(read_bl)); | |
707 | } | |
708 | ||
709 | // verify the object map was properly updated | |
710 | if ((ictx2->features & RBD_FEATURE_OBJECT_MAP) != 0) { | |
711 | uint8_t state = OBJECT_EXISTS; | |
712 | if ((ictx2->features & RBD_FEATURE_FAST_DIFF) != 0 && | |
713 | it != snaps.begin() && snap_name != NULL) { | |
714 | state = OBJECT_EXISTS_CLEAN; | |
715 | } | |
716 | ||
717 | librbd::ObjectMap<> *object_map = new librbd::ObjectMap<>(*ictx2, ictx2->snap_id); | |
718 | C_SaferCond ctx; | |
719 | object_map->open(&ctx); | |
720 | ASSERT_EQ(0, ctx.wait()); | |
721 | ||
722 | std::shared_lock image_locker{ictx2->image_lock}; | |
723 | ASSERT_EQ(state, (*object_map)[0]); | |
724 | object_map->put(); | |
725 | } | |
726 | } | |
727 | } | |
728 | ||
729 | TEST_F(TestInternal, SnapshotCopyupZeros) | |
730 | { | |
731 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
732 | ||
733 | librbd::ImageCtx *ictx; | |
734 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
735 | ||
736 | // create an empty clone | |
737 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
738 | ASSERT_EQ(0, | |
739 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
740 | "snap1")); | |
741 | ||
742 | uint64_t features; | |
743 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
744 | ||
745 | std::string clone_name = get_temp_image_name(); | |
746 | int order = ictx->order; | |
747 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
748 | clone_name.c_str(), features, &order, 0, 0)); | |
749 | ||
750 | librbd::ImageCtx *ictx2; | |
751 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
752 | ||
753 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
754 | ||
755 | bufferlist bl; | |
756 | bl.append(std::string(256, '1')); | |
757 | ASSERT_EQ(256, ictx2->io_work_queue->write(256, bl.length(), bufferlist{bl}, | |
758 | 0)); | |
759 | ||
760 | librados::IoCtx snap_ctx; | |
761 | snap_ctx.dup(ictx2->data_ctx); | |
762 | snap_ctx.snap_set_read(CEPH_SNAPDIR); | |
763 | ||
764 | librados::snap_set_t snap_set; | |
765 | ASSERT_EQ(0, snap_ctx.list_snaps(ictx2->get_object_name(0), &snap_set)); | |
766 | ||
767 | // verify that snapshot wasn't affected | |
768 | ASSERT_EQ(1U, snap_set.clones.size()); | |
769 | ASSERT_EQ(CEPH_NOSNAP, snap_set.clones[0].cloneid); | |
770 | ||
771 | bufferptr read_ptr(256); | |
772 | bufferlist read_bl; | |
773 | read_bl.push_back(read_ptr); | |
774 | ||
775 | std::list<std::string> snaps = {"snap1", ""}; | |
776 | librbd::io::ReadResult read_result{&read_bl}; | |
777 | for (std::list<std::string>::iterator it = snaps.begin(); | |
778 | it != snaps.end(); ++it) { | |
779 | const char *snap_name = it->empty() ? NULL : it->c_str(); | |
780 | ASSERT_EQ(0, librbd::api::Image<>::snap_set( | |
781 | ictx2, cls::rbd::UserSnapshotNamespace(), snap_name)); | |
782 | ||
783 | ASSERT_EQ(256, | |
784 | ictx2->io_work_queue->read(0, 256, | |
785 | librbd::io::ReadResult{read_result}, | |
786 | 0)); | |
787 | ASSERT_TRUE(read_bl.is_zero()); | |
788 | ||
789 | ASSERT_EQ(256, | |
790 | ictx2->io_work_queue->read(256, 256, | |
791 | librbd::io::ReadResult{read_result}, | |
792 | 0)); | |
793 | if (snap_name == NULL) { | |
794 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
795 | } else { | |
796 | ASSERT_TRUE(read_bl.is_zero()); | |
797 | } | |
798 | ||
799 | // verify that only HEAD object map was updated | |
800 | if ((ictx2->features & RBD_FEATURE_OBJECT_MAP) != 0) { | |
801 | uint8_t state = OBJECT_EXISTS; | |
802 | if (snap_name != NULL) { | |
803 | state = OBJECT_NONEXISTENT; | |
804 | } | |
805 | ||
806 | librbd::ObjectMap<> *object_map = new librbd::ObjectMap<>(*ictx2, ictx2->snap_id); | |
807 | C_SaferCond ctx; | |
808 | object_map->open(&ctx); | |
809 | ASSERT_EQ(0, ctx.wait()); | |
810 | ||
811 | std::shared_lock image_locker{ictx2->image_lock}; | |
812 | ASSERT_EQ(state, (*object_map)[0]); | |
813 | object_map->put(); | |
814 | } | |
815 | } | |
816 | } | |
817 | ||
818 | TEST_F(TestInternal, SnapshotCopyupZerosMigration) | |
819 | { | |
820 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
821 | ||
822 | librbd::ImageCtx *ictx; | |
823 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
824 | ||
825 | uint64_t features; | |
826 | ASSERT_EQ(0, librbd::get_features(ictx, &features)); | |
827 | ||
828 | close_image(ictx); | |
829 | ||
830 | // migrate an empty image | |
831 | std::string dst_name = get_temp_image_name(); | |
832 | librbd::ImageOptions dst_opts; | |
833 | dst_opts.set(RBD_IMAGE_OPTION_FEATURES, features); | |
834 | ASSERT_EQ(0, librbd::api::Migration<>::prepare(m_ioctx, m_image_name, | |
835 | m_ioctx, dst_name, | |
836 | dst_opts)); | |
837 | ||
838 | librbd::ImageCtx *ictx2; | |
839 | ASSERT_EQ(0, open_image(dst_name, &ictx2)); | |
840 | ||
841 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
842 | ||
843 | bufferlist bl; | |
844 | bl.append(std::string(256, '1')); | |
845 | ASSERT_EQ(256, ictx2->io_work_queue->write(256, bl.length(), bufferlist{bl}, | |
846 | 0)); | |
847 | ||
848 | librados::IoCtx snap_ctx; | |
849 | snap_ctx.dup(ictx2->data_ctx); | |
850 | snap_ctx.snap_set_read(CEPH_SNAPDIR); | |
851 | ||
852 | librados::snap_set_t snap_set; | |
853 | ASSERT_EQ(0, snap_ctx.list_snaps(ictx2->get_object_name(0), &snap_set)); | |
854 | ||
855 | // verify that snapshot wasn't affected | |
856 | ASSERT_EQ(1U, snap_set.clones.size()); | |
857 | ASSERT_EQ(CEPH_NOSNAP, snap_set.clones[0].cloneid); | |
858 | ||
859 | bufferptr read_ptr(256); | |
860 | bufferlist read_bl; | |
861 | read_bl.push_back(read_ptr); | |
862 | ||
863 | std::list<std::string> snaps = {"snap1", ""}; | |
864 | librbd::io::ReadResult read_result{&read_bl}; | |
865 | for (std::list<std::string>::iterator it = snaps.begin(); | |
866 | it != snaps.end(); ++it) { | |
867 | const char *snap_name = it->empty() ? NULL : it->c_str(); | |
868 | ASSERT_EQ(0, librbd::api::Image<>::snap_set( | |
869 | ictx2, cls::rbd::UserSnapshotNamespace(), snap_name)); | |
870 | ||
871 | ASSERT_EQ(256, | |
872 | ictx2->io_work_queue->read(0, 256, | |
873 | librbd::io::ReadResult{read_result}, | |
874 | 0)); | |
875 | ASSERT_TRUE(read_bl.is_zero()); | |
876 | ||
877 | ASSERT_EQ(256, | |
878 | ictx2->io_work_queue->read(256, 256, | |
879 | librbd::io::ReadResult{read_result}, | |
880 | 0)); | |
881 | if (snap_name == NULL) { | |
882 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
883 | } else { | |
884 | ASSERT_TRUE(read_bl.is_zero()); | |
885 | } | |
886 | ||
887 | // verify that only HEAD object map was updated | |
888 | if ((ictx2->features & RBD_FEATURE_OBJECT_MAP) != 0) { | |
889 | uint8_t state = OBJECT_EXISTS; | |
890 | if (snap_name != NULL) { | |
891 | state = OBJECT_NONEXISTENT; | |
892 | } | |
893 | ||
894 | librbd::ObjectMap<> *object_map = new librbd::ObjectMap<>(*ictx2, ictx2->snap_id); | |
895 | C_SaferCond ctx; | |
896 | object_map->open(&ctx); | |
897 | ASSERT_EQ(0, ctx.wait()); | |
898 | ||
899 | std::shared_lock image_locker{ictx2->image_lock}; | |
900 | ASSERT_EQ(state, (*object_map)[0]); | |
901 | object_map->put(); | |
902 | } | |
903 | } | |
904 | } | |
905 | ||
906 | TEST_F(TestInternal, ResizeCopyup) | |
907 | { | |
908 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
909 | ||
910 | m_image_name = get_temp_image_name(); | |
911 | m_image_size = 1 << 14; | |
912 | ||
913 | uint64_t features = 0; | |
914 | get_features(&features); | |
915 | int order = 12; | |
916 | ASSERT_EQ(0, m_rbd.create2(m_ioctx, m_image_name.c_str(), m_image_size, | |
917 | features, &order)); | |
918 | ||
919 | librbd::ImageCtx *ictx; | |
920 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
921 | ||
922 | bufferlist bl; | |
923 | bl.append(std::string(4096, '1')); | |
924 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
925 | ASSERT_EQ((ssize_t)bl.length(), | |
926 | ictx->io_work_queue->write(i, bl.length(), | |
927 | bufferlist{bl}, 0)); | |
928 | } | |
929 | ||
930 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
931 | ASSERT_EQ(0, | |
932 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
933 | "snap1")); | |
934 | ||
935 | std::string clone_name = get_temp_image_name(); | |
936 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
937 | clone_name.c_str(), features, &order, 0, 0)); | |
938 | ||
939 | librbd::ImageCtx *ictx2; | |
940 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
941 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
942 | ||
943 | bufferptr read_ptr(bl.length()); | |
944 | bufferlist read_bl; | |
945 | read_bl.push_back(read_ptr); | |
946 | ||
947 | // verify full / partial object removal properly copyup | |
948 | librbd::NoOpProgressContext no_op; | |
949 | ASSERT_EQ(0, ictx2->operations->resize(m_image_size - (1 << order) - 32, | |
950 | true, no_op)); | |
951 | ASSERT_EQ(0, ictx2->operations->resize(m_image_size - (2 << order) - 32, | |
952 | true, no_op)); | |
953 | ASSERT_EQ(0, librbd::api::Image<>::snap_set(ictx2, | |
954 | cls::rbd::UserSnapshotNamespace(), | |
955 | "snap1")); | |
956 | ||
957 | { | |
958 | // hide the parent from the snapshot | |
959 | std::unique_lock image_locker{ictx2->image_lock}; | |
960 | ictx2->snap_info.begin()->second.parent = librbd::ParentImageInfo(); | |
961 | } | |
962 | ||
963 | librbd::io::ReadResult read_result{&read_bl}; | |
964 | for (size_t i = 2 << order; i < m_image_size; i += bl.length()) { | |
965 | ASSERT_EQ((ssize_t)bl.length(), | |
966 | ictx2->io_work_queue->read(i, bl.length(), | |
967 | librbd::io::ReadResult{read_result}, | |
968 | 0)); | |
969 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
970 | } | |
971 | } | |
972 | ||
973 | TEST_F(TestInternal, DiscardCopyup) | |
974 | { | |
975 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
976 | ||
977 | CephContext* cct = reinterpret_cast<CephContext*>(_rados.cct()); | |
978 | REQUIRE(!cct->_conf.get_val<bool>("rbd_skip_partial_discard")); | |
979 | ||
980 | m_image_name = get_temp_image_name(); | |
981 | m_image_size = 1 << 14; | |
982 | ||
983 | uint64_t features = 0; | |
984 | get_features(&features); | |
985 | int order = 12; | |
986 | ASSERT_EQ(0, m_rbd.create2(m_ioctx, m_image_name.c_str(), m_image_size, | |
987 | features, &order)); | |
988 | ||
989 | librbd::ImageCtx *ictx; | |
990 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
991 | ||
992 | bufferlist bl; | |
993 | bl.append(std::string(4096, '1')); | |
994 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
995 | ASSERT_EQ((ssize_t)bl.length(), | |
996 | ictx->io_work_queue->write(i, bl.length(), | |
997 | bufferlist{bl}, 0)); | |
998 | } | |
999 | ||
1000 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
1001 | ASSERT_EQ(0, | |
1002 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
1003 | "snap1")); | |
1004 | ||
1005 | std::string clone_name = get_temp_image_name(); | |
1006 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
1007 | clone_name.c_str(), features, &order, 0, 0)); | |
1008 | ||
1009 | librbd::ImageCtx *ictx2; | |
1010 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
1011 | ||
1012 | ASSERT_EQ(0, snap_create(*ictx2, "snap1")); | |
1013 | ||
1014 | bufferptr read_ptr(bl.length()); | |
1015 | bufferlist read_bl; | |
1016 | read_bl.push_back(read_ptr); | |
1017 | ||
1018 | ASSERT_EQ(static_cast<int>(m_image_size - 64), | |
1019 | ictx2->io_work_queue->discard(32, m_image_size - 64, false)); | |
1020 | ASSERT_EQ(0, librbd::api::Image<>::snap_set(ictx2, | |
1021 | cls::rbd::UserSnapshotNamespace(), | |
1022 | "snap1")); | |
1023 | ||
1024 | { | |
1025 | // hide the parent from the snapshot | |
1026 | std::unique_lock image_locker{ictx2->image_lock}; | |
1027 | ictx2->snap_info.begin()->second.parent = librbd::ParentImageInfo(); | |
1028 | } | |
1029 | ||
1030 | librbd::io::ReadResult read_result{&read_bl}; | |
1031 | for (size_t i = 0; i < m_image_size; i += bl.length()) { | |
1032 | ASSERT_EQ((ssize_t)bl.length(), | |
1033 | ictx2->io_work_queue->read(i, bl.length(), | |
1034 | librbd::io::ReadResult{read_result}, | |
1035 | 0)); | |
1036 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | TEST_F(TestInternal, ShrinkFlushesCache) { | |
1041 | librbd::ImageCtx *ictx; | |
1042 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1043 | ||
1044 | std::string buffer(4096, '1'); | |
1045 | ||
1046 | // ensure write-path is initialized | |
1047 | bufferlist write_bl; | |
1048 | write_bl.append(buffer); | |
1049 | ictx->io_work_queue->write(0, buffer.size(), bufferlist{write_bl}, 0); | |
1050 | ||
1051 | C_SaferCond cond_ctx; | |
1052 | auto c = librbd::io::AioCompletion::create(&cond_ctx); | |
1053 | c->get(); | |
1054 | ictx->io_work_queue->aio_write(c, 0, buffer.size(), bufferlist{write_bl}, 0); | |
1055 | ||
1056 | librbd::NoOpProgressContext no_op; | |
1057 | ASSERT_EQ(0, ictx->operations->resize(m_image_size >> 1, true, no_op)); | |
1058 | ||
1059 | ASSERT_TRUE(c->is_complete()); | |
1060 | ASSERT_EQ(0, c->wait_for_complete()); | |
1061 | ASSERT_EQ(0, cond_ctx.wait()); | |
1062 | c->put(); | |
1063 | } | |
1064 | ||
1065 | TEST_F(TestInternal, ImageOptions) { | |
1066 | rbd_image_options_t opts1 = NULL, opts2 = NULL; | |
1067 | uint64_t uint64_val1 = 10, uint64_val2 = 0; | |
1068 | std::string string_val1; | |
1069 | ||
1070 | librbd::image_options_create(&opts1); | |
1071 | ASSERT_NE((rbd_image_options_t)NULL, opts1); | |
1072 | ASSERT_TRUE(librbd::image_options_is_empty(opts1)); | |
1073 | ||
1074 | ASSERT_EQ(-EINVAL, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
1075 | &string_val1)); | |
1076 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
1077 | &uint64_val1)); | |
1078 | ||
1079 | ASSERT_EQ(-EINVAL, librbd::image_options_set(opts1, RBD_IMAGE_OPTION_FEATURES, | |
1080 | string_val1)); | |
1081 | ||
1082 | ASSERT_EQ(0, librbd::image_options_set(opts1, RBD_IMAGE_OPTION_FEATURES, | |
1083 | uint64_val1)); | |
1084 | ASSERT_FALSE(librbd::image_options_is_empty(opts1)); | |
1085 | ASSERT_EQ(0, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_FEATURES, | |
1086 | &uint64_val2)); | |
1087 | ASSERT_EQ(uint64_val1, uint64_val2); | |
1088 | ||
1089 | librbd::image_options_create_ref(&opts2, opts1); | |
1090 | ASSERT_NE((rbd_image_options_t)NULL, opts2); | |
1091 | ASSERT_FALSE(librbd::image_options_is_empty(opts2)); | |
1092 | ||
1093 | uint64_val2 = 0; | |
1094 | ASSERT_NE(uint64_val1, uint64_val2); | |
1095 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_FEATURES, | |
1096 | &uint64_val2)); | |
1097 | ASSERT_EQ(uint64_val1, uint64_val2); | |
1098 | ||
1099 | uint64_val2++; | |
1100 | ASSERT_NE(uint64_val1, uint64_val2); | |
1101 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_ORDER, | |
1102 | &uint64_val1)); | |
1103 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
1104 | &uint64_val2)); | |
1105 | ASSERT_EQ(0, librbd::image_options_set(opts2, RBD_IMAGE_OPTION_ORDER, | |
1106 | uint64_val2)); | |
1107 | ASSERT_EQ(0, librbd::image_options_get(opts1, RBD_IMAGE_OPTION_ORDER, | |
1108 | &uint64_val1)); | |
1109 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
1110 | &uint64_val2)); | |
1111 | ASSERT_EQ(uint64_val1, uint64_val2); | |
1112 | ||
1113 | librbd::image_options_destroy(opts1); | |
1114 | ||
1115 | uint64_val2++; | |
1116 | ASSERT_NE(uint64_val1, uint64_val2); | |
1117 | ASSERT_EQ(0, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_ORDER, | |
1118 | &uint64_val2)); | |
1119 | ASSERT_EQ(uint64_val1, uint64_val2); | |
1120 | ||
1121 | ASSERT_EQ(0, librbd::image_options_unset(opts2, RBD_IMAGE_OPTION_ORDER)); | |
1122 | ASSERT_EQ(-ENOENT, librbd::image_options_unset(opts2, RBD_IMAGE_OPTION_ORDER)); | |
1123 | ||
1124 | librbd::image_options_clear(opts2); | |
1125 | ASSERT_EQ(-ENOENT, librbd::image_options_get(opts2, RBD_IMAGE_OPTION_FEATURES, | |
1126 | &uint64_val2)); | |
1127 | ASSERT_TRUE(librbd::image_options_is_empty(opts2)); | |
1128 | ||
1129 | librbd::image_options_destroy(opts2); | |
1130 | } | |
1131 | ||
1132 | TEST_F(TestInternal, WriteFullCopyup) { | |
1133 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1134 | ||
1135 | librbd::ImageCtx *ictx; | |
1136 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1137 | ||
1138 | librbd::NoOpProgressContext no_op; | |
1139 | ASSERT_EQ(0, ictx->operations->resize(1 << ictx->order, true, no_op)); | |
1140 | ||
1141 | bufferlist bl; | |
1142 | bl.append(std::string(1 << ictx->order, '1')); | |
1143 | ASSERT_EQ((ssize_t)bl.length(), | |
1144 | ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
1145 | ASSERT_EQ(0, ictx->io_work_queue->flush()); | |
1146 | ||
1147 | ASSERT_EQ(0, create_snapshot("snap1", true)); | |
1148 | ||
1149 | std::string clone_name = get_temp_image_name(); | |
1150 | int order = ictx->order; | |
1151 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap1", m_ioctx, | |
1152 | clone_name.c_str(), ictx->features, &order, 0, 0)); | |
1153 | ||
1154 | TestInternal *parent = this; | |
1155 | librbd::ImageCtx *ictx2 = NULL; | |
1156 | BOOST_SCOPE_EXIT( (&m_ioctx) (clone_name) (parent) (&ictx2) ) { | |
1157 | if (ictx2 != NULL) { | |
1158 | ictx2->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
1159 | "snap1"); | |
1160 | parent->close_image(ictx2); | |
1161 | } | |
1162 | ||
1163 | librbd::NoOpProgressContext remove_no_op; | |
1164 | ASSERT_EQ(0, librbd::api::Image<>::remove(m_ioctx, clone_name, | |
1165 | remove_no_op)); | |
1166 | } BOOST_SCOPE_EXIT_END; | |
1167 | ||
1168 | ASSERT_EQ(0, open_image(clone_name, &ictx2)); | |
1169 | ASSERT_EQ(0, ictx2->operations->snap_create(cls::rbd::UserSnapshotNamespace(), | |
1170 | "snap1")); | |
1171 | ||
1172 | bufferlist write_full_bl; | |
1173 | write_full_bl.append(std::string(1 << ictx2->order, '2')); | |
1174 | ASSERT_EQ((ssize_t)write_full_bl.length(), | |
1175 | ictx2->io_work_queue->write(0, write_full_bl.length(), | |
1176 | bufferlist{write_full_bl}, 0)); | |
1177 | ||
1178 | ASSERT_EQ(0, ictx2->operations->flatten(no_op)); | |
1179 | ||
1180 | bufferptr read_ptr(bl.length()); | |
1181 | bufferlist read_bl; | |
1182 | read_bl.push_back(read_ptr); | |
1183 | ||
1184 | librbd::io::ReadResult read_result{&read_bl}; | |
1185 | ASSERT_EQ((ssize_t)read_bl.length(), | |
1186 | ictx2->io_work_queue->read(0, read_bl.length(), | |
1187 | librbd::io::ReadResult{read_result}, 0)); | |
1188 | ASSERT_TRUE(write_full_bl.contents_equal(read_bl)); | |
1189 | ||
1190 | ASSERT_EQ(0, librbd::api::Image<>::snap_set(ictx2, | |
1191 | cls::rbd::UserSnapshotNamespace(), | |
1192 | "snap1")); | |
1193 | ASSERT_EQ((ssize_t)read_bl.length(), | |
1194 | ictx2->io_work_queue->read(0, read_bl.length(), | |
1195 | librbd::io::ReadResult{read_result}, 0)); | |
1196 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
1197 | } | |
1198 | ||
1199 | static int iterate_cb(uint64_t off, size_t len, int exists, void *arg) | |
1200 | { | |
1201 | interval_set<uint64_t> *diff = static_cast<interval_set<uint64_t> *>(arg); | |
1202 | diff->insert(off, len); | |
1203 | return 0; | |
1204 | } | |
1205 | ||
1206 | TEST_F(TestInternal, DiffIterateCloneOverwrite) { | |
1207 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1208 | ||
1209 | librbd::RBD rbd; | |
1210 | librbd::Image image; | |
1211 | uint64_t size = 20 << 20; | |
1212 | int order = 0; | |
1213 | ||
1214 | ASSERT_EQ(0, rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
1215 | ||
1216 | bufferlist bl; | |
1217 | bl.append(std::string(4096, '1')); | |
1218 | ASSERT_EQ(4096, image.write(0, 4096, bl)); | |
1219 | ||
1220 | interval_set<uint64_t> one; | |
1221 | ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, false, false, iterate_cb, | |
1222 | (void *)&one)); | |
1223 | ASSERT_EQ(0, image.snap_create("one")); | |
1224 | ASSERT_EQ(0, image.snap_protect("one")); | |
1225 | ||
1226 | std::string clone_name = this->get_temp_image_name(); | |
1227 | ASSERT_EQ(0, rbd.clone(m_ioctx, m_image_name.c_str(), "one", m_ioctx, | |
1228 | clone_name.c_str(), RBD_FEATURE_LAYERING, &order)); | |
1229 | ||
1230 | librbd::ImageCtx *ictx; | |
1231 | ASSERT_EQ(0, open_image(clone_name, &ictx)); | |
1232 | ASSERT_EQ(0, snap_create(*ictx, "one")); | |
1233 | ASSERT_EQ(0, | |
1234 | ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), | |
1235 | "one")); | |
1236 | ||
1237 | // Simulate a client that doesn't support deep flatten (old librbd / krbd) | |
1238 | // which will copy up the full object from the parent | |
1239 | std::string oid = ictx->object_prefix + ".0000000000000000"; | |
1240 | librados::IoCtx io_ctx; | |
1241 | io_ctx.dup(m_ioctx); | |
1242 | io_ctx.selfmanaged_snap_set_write_ctx(ictx->snapc.seq, ictx->snaps); | |
1243 | ASSERT_EQ(0, io_ctx.write(oid, bl, 4096, 4096)); | |
1244 | ||
1245 | interval_set<uint64_t> diff; | |
1246 | ASSERT_EQ(0, librbd::api::Image<>::snap_set(ictx, | |
1247 | cls::rbd::UserSnapshotNamespace(), | |
1248 | "one")); | |
1249 | ASSERT_EQ(0, librbd::api::DiffIterate<>::diff_iterate( | |
1250 | ictx, cls::rbd::UserSnapshotNamespace(), nullptr, 0, size, true, false, | |
1251 | iterate_cb, (void *)&diff)); | |
1252 | ASSERT_EQ(one, diff); | |
1253 | } | |
1254 | ||
1255 | TEST_F(TestInternal, TestCoR) | |
1256 | { | |
1257 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1258 | ||
1259 | std::string config_value; | |
1260 | ASSERT_EQ(0, _rados.conf_get("rbd_clone_copy_on_read", config_value)); | |
1261 | if (config_value == "false") { | |
1262 | std::cout << "SKIPPING due to disabled rbd_copy_on_read" << std::endl; | |
1263 | return; | |
1264 | } | |
1265 | ||
1266 | m_image_name = get_temp_image_name(); | |
1267 | m_image_size = 4 << 20; | |
1268 | ||
1269 | int order = 12; // smallest object size is 4K | |
1270 | uint64_t features; | |
1271 | ASSERT_TRUE(get_features(&features)); | |
1272 | ||
1273 | ASSERT_EQ(0, create_image_full_pp(m_rbd, m_ioctx, m_image_name, m_image_size, | |
1274 | features, false, &order)); | |
1275 | ||
1276 | librbd::Image image; | |
1277 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
1278 | ||
1279 | librbd::image_info_t info; | |
1280 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1281 | ||
1282 | const int object_num = info.size / info.obj_size; | |
1283 | printf("made parent image \"%s\": %ldK (%d * %" PRIu64 "K)\n", m_image_name.c_str(), | |
1284 | (unsigned long)m_image_size, object_num, info.obj_size/1024); | |
1285 | ||
1286 | // write something into parent | |
1287 | char test_data[TEST_IO_SIZE + 1]; | |
1288 | for (int i = 0; i < TEST_IO_SIZE; ++i) { | |
1289 | test_data[i] = (char) (rand() % (126 - 33) + 33); | |
1290 | } | |
1291 | test_data[TEST_IO_SIZE] = '\0'; | |
1292 | ||
1293 | // generate a random map which covers every objects with random | |
1294 | // offset | |
1295 | map<uint64_t, uint64_t> write_tracker; | |
1296 | generate_random_iomap(image, object_num, info.obj_size, 100, write_tracker); | |
1297 | ||
1298 | printf("generated random write map:\n"); | |
1299 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1300 | itr != write_tracker.end(); ++itr) | |
1301 | printf("\t [%-8lu, %-8lu]\n", | |
1302 | (unsigned long)itr->first, (unsigned long)itr->second); | |
1303 | ||
1304 | bufferlist bl; | |
1305 | bl.append(test_data, TEST_IO_SIZE); | |
1306 | ||
1307 | printf("write data based on random map\n"); | |
1308 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1309 | itr != write_tracker.end(); ++itr) { | |
1310 | printf("\twrite object-%-4lu\t\n", (unsigned long)itr->first); | |
1311 | ASSERT_EQ(TEST_IO_SIZE, image.write(itr->second, TEST_IO_SIZE, bl)); | |
1312 | } | |
1313 | ||
1314 | ASSERT_EQ(0, image.flush()); | |
1315 | ||
1316 | bufferlist readbl; | |
1317 | printf("verify written data by reading\n"); | |
1318 | { | |
1319 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1320 | printf("\tread object-%-4lu\n", (unsigned long)itr->first); | |
1321 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1322 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1323 | } | |
1324 | ||
1325 | int64_t data_pool_id = image.get_data_pool_id(); | |
1326 | rados_ioctx_t d_ioctx; | |
1327 | ASSERT_EQ(0, rados_wait_for_latest_osdmap(_cluster)); | |
1328 | ASSERT_EQ(0, rados_ioctx_create2(_cluster, data_pool_id, &d_ioctx)); | |
1329 | ||
1330 | std::string block_name_prefix = image.get_block_name_prefix() + "."; | |
1331 | ||
1332 | const char *entry; | |
1333 | rados_list_ctx_t list_ctx; | |
1334 | set<string> obj_checker; | |
1335 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1336 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1337 | if (boost::starts_with(entry, block_name_prefix)) { | |
1338 | const char *block_name_suffix = entry + block_name_prefix.length(); | |
1339 | obj_checker.insert(block_name_suffix); | |
1340 | } | |
1341 | } | |
1342 | rados_nobjects_list_close(list_ctx); | |
1343 | ||
1344 | std::string snapname = "snap"; | |
1345 | std::string clonename = get_temp_image_name(); | |
1346 | ASSERT_EQ(0, image.snap_create(snapname.c_str())); | |
1347 | ASSERT_EQ(0, image.close()); | |
1348 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), snapname.c_str())); | |
1349 | ASSERT_EQ(0, image.snap_protect(snapname.c_str())); | |
1350 | printf("made snapshot \"%s@parent_snap\" and protect it\n", m_image_name.c_str()); | |
1351 | ||
1352 | ASSERT_EQ(0, clone_image_pp(m_rbd, image, m_ioctx, m_image_name.c_str(), snapname.c_str(), | |
1353 | m_ioctx, clonename.c_str(), features)); | |
1354 | ASSERT_EQ(0, image.close()); | |
1355 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1356 | printf("made and opened clone \"%s\"\n", clonename.c_str()); | |
1357 | ||
1358 | printf("read from \"child\"\n"); | |
1359 | { | |
1360 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1361 | printf("\tread object-%-4lu\n", (unsigned long)itr->first); | |
1362 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1363 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1364 | } | |
1365 | ||
1366 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1367 | itr != write_tracker.end(); ++itr) { | |
1368 | printf("\tread object-%-4lu\n", (unsigned long)itr->first); | |
1369 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1370 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1371 | } | |
1372 | ||
1373 | printf("read again reversely\n"); | |
1374 | for (map<uint64_t, uint64_t>::iterator itr = --write_tracker.end(); | |
1375 | itr != write_tracker.begin(); --itr) { | |
1376 | printf("\tread object-%-4lu\n", (unsigned long)itr->first); | |
1377 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1378 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1379 | } | |
1380 | ||
1381 | // close child to flush all copy-on-read | |
1382 | ASSERT_EQ(0, image.close()); | |
1383 | ||
1384 | printf("check whether child image has the same set of objects as parent\n"); | |
1385 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1386 | block_name_prefix = image.get_block_name_prefix() + "."; | |
1387 | ||
1388 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1389 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1390 | if (boost::starts_with(entry, block_name_prefix)) { | |
1391 | const char *block_name_suffix = entry + block_name_prefix.length(); | |
1392 | set<string>::iterator it = obj_checker.find(block_name_suffix); | |
1393 | ASSERT_TRUE(it != obj_checker.end()); | |
1394 | obj_checker.erase(it); | |
1395 | } | |
1396 | } | |
1397 | rados_nobjects_list_close(list_ctx); | |
1398 | ASSERT_TRUE(obj_checker.empty()); | |
1399 | ASSERT_EQ(0, image.close()); | |
1400 | ||
1401 | rados_ioctx_destroy(d_ioctx); | |
1402 | } | |
1403 | ||
1404 | TEST_F(TestInternal, FlattenNoEmptyObjects) | |
1405 | { | |
1406 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1407 | ||
1408 | m_image_name = get_temp_image_name(); | |
1409 | m_image_size = 4 << 20; | |
1410 | ||
1411 | int order = 12; // smallest object size is 4K | |
1412 | uint64_t features; | |
1413 | ASSERT_TRUE(get_features(&features)); | |
1414 | ||
1415 | ASSERT_EQ(0, create_image_full_pp(m_rbd, m_ioctx, m_image_name, m_image_size, | |
1416 | features, false, &order)); | |
1417 | ||
1418 | librbd::Image image; | |
1419 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), NULL)); | |
1420 | ||
1421 | librbd::image_info_t info; | |
1422 | ASSERT_EQ(0, image.stat(info, sizeof(info))); | |
1423 | ||
1424 | const int object_num = info.size / info.obj_size; | |
1425 | printf("made parent image \"%s\": %" PRIu64 "K (%d * %" PRIu64 "K)\n", | |
1426 | m_image_name.c_str(), m_image_size, object_num, info.obj_size/1024); | |
1427 | ||
1428 | // write something into parent | |
1429 | char test_data[TEST_IO_SIZE + 1]; | |
1430 | for (int i = 0; i < TEST_IO_SIZE; ++i) { | |
1431 | test_data[i] = (char) (rand() % (126 - 33) + 33); | |
1432 | } | |
1433 | test_data[TEST_IO_SIZE] = '\0'; | |
1434 | ||
1435 | // generate a random map which covers every objects with random | |
1436 | // offset | |
1437 | map<uint64_t, uint64_t> write_tracker; | |
1438 | generate_random_iomap(image, object_num, info.obj_size, 100, write_tracker); | |
1439 | ||
1440 | printf("generated random write map:\n"); | |
1441 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1442 | itr != write_tracker.end(); ++itr) | |
1443 | printf("\t [%-8lu, %-8lu]\n", | |
1444 | (unsigned long)itr->first, (unsigned long)itr->second); | |
1445 | ||
1446 | bufferlist bl; | |
1447 | bl.append(test_data, TEST_IO_SIZE); | |
1448 | ||
1449 | printf("write data based on random map\n"); | |
1450 | for (map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1451 | itr != write_tracker.end(); ++itr) { | |
1452 | printf("\twrite object-%-4lu\t\n", (unsigned long)itr->first); | |
1453 | ASSERT_EQ(TEST_IO_SIZE, image.write(itr->second, TEST_IO_SIZE, bl)); | |
1454 | } | |
1455 | ||
1456 | ASSERT_EQ(0, image.flush()); | |
1457 | ||
1458 | bufferlist readbl; | |
1459 | printf("verify written data by reading\n"); | |
1460 | { | |
1461 | map<uint64_t, uint64_t>::iterator itr = write_tracker.begin(); | |
1462 | printf("\tread object-%-4lu\n", (unsigned long)itr->first); | |
1463 | ASSERT_EQ(TEST_IO_SIZE, image.read(itr->second, TEST_IO_SIZE, readbl)); | |
1464 | ASSERT_TRUE(readbl.contents_equal(bl)); | |
1465 | } | |
1466 | ||
1467 | int64_t data_pool_id = image.get_data_pool_id(); | |
1468 | rados_ioctx_t d_ioctx; | |
1469 | ASSERT_EQ(0, rados_wait_for_latest_osdmap(_cluster)); | |
1470 | ASSERT_EQ(0, rados_ioctx_create2(_cluster, data_pool_id, &d_ioctx)); | |
1471 | ||
1472 | std::string block_name_prefix = image.get_block_name_prefix() + "."; | |
1473 | ||
1474 | const char *entry; | |
1475 | rados_list_ctx_t list_ctx; | |
1476 | set<string> obj_checker; | |
1477 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1478 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1479 | if (boost::starts_with(entry, block_name_prefix)) { | |
1480 | const char *block_name_suffix = entry + block_name_prefix.length(); | |
1481 | obj_checker.insert(block_name_suffix); | |
1482 | } | |
1483 | } | |
1484 | rados_nobjects_list_close(list_ctx); | |
1485 | ||
1486 | std::string snapname = "snap"; | |
1487 | std::string clonename = get_temp_image_name(); | |
1488 | ASSERT_EQ(0, image.snap_create(snapname.c_str())); | |
1489 | ASSERT_EQ(0, image.close()); | |
1490 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, m_image_name.c_str(), snapname.c_str())); | |
1491 | ASSERT_EQ(0, image.snap_protect(snapname.c_str())); | |
1492 | printf("made snapshot \"%s@parent_snap\" and protect it\n", m_image_name.c_str()); | |
1493 | ||
1494 | ASSERT_EQ(0, clone_image_pp(m_rbd, image, m_ioctx, m_image_name.c_str(), snapname.c_str(), | |
1495 | m_ioctx, clonename.c_str(), features)); | |
1496 | ASSERT_EQ(0, image.close()); | |
1497 | ||
1498 | ASSERT_EQ(0, m_rbd.open(m_ioctx, image, clonename.c_str(), NULL)); | |
1499 | printf("made and opened clone \"%s\"\n", clonename.c_str()); | |
1500 | ||
1501 | printf("flattening clone: \"%s\"\n", clonename.c_str()); | |
1502 | ASSERT_EQ(0, image.flatten()); | |
1503 | ||
1504 | printf("check whether child image has the same set of objects as parent\n"); | |
1505 | block_name_prefix = image.get_block_name_prefix() + "."; | |
1506 | ||
1507 | ASSERT_EQ(0, rados_nobjects_list_open(d_ioctx, &list_ctx)); | |
1508 | while (rados_nobjects_list_next(list_ctx, &entry, NULL, NULL) != -ENOENT) { | |
1509 | if (boost::starts_with(entry, block_name_prefix)) { | |
1510 | const char *block_name_suffix = entry + block_name_prefix.length(); | |
1511 | set<string>::iterator it = obj_checker.find(block_name_suffix); | |
1512 | ASSERT_TRUE(it != obj_checker.end()); | |
1513 | obj_checker.erase(it); | |
1514 | } | |
1515 | } | |
1516 | rados_nobjects_list_close(list_ctx); | |
1517 | ASSERT_TRUE(obj_checker.empty()); | |
1518 | ASSERT_EQ(0, image.close()); | |
1519 | ||
1520 | rados_ioctx_destroy(d_ioctx); | |
1521 | } | |
1522 | ||
1523 | TEST_F(TestInternal, PoolMetadataConfApply) { | |
1524 | REQUIRE_FORMAT_V2(); | |
1525 | ||
1526 | librbd::api::PoolMetadata<>::remove(m_ioctx, "conf_rbd_cache"); | |
1527 | ||
1528 | librbd::ImageCtx *ictx; | |
1529 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1530 | ||
1531 | bool cache = ictx->cache; | |
1532 | std::string rbd_conf_cache = cache ? "true" : "false"; | |
1533 | std::string new_rbd_conf_cache = !cache ? "true" : "false"; | |
1534 | ||
1535 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::set(m_ioctx, "conf_rbd_cache", | |
1536 | new_rbd_conf_cache)); | |
1537 | ASSERT_EQ(0, ictx->state->refresh()); | |
1538 | ASSERT_EQ(!cache, ictx->cache); | |
1539 | ||
1540 | ASSERT_EQ(0, ictx->operations->metadata_set("conf_rbd_cache", | |
1541 | rbd_conf_cache)); | |
1542 | ASSERT_EQ(cache, ictx->cache); | |
1543 | ||
1544 | ASSERT_EQ(0, ictx->operations->metadata_remove("conf_rbd_cache")); | |
1545 | ASSERT_EQ(!cache, ictx->cache); | |
1546 | ||
1547 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::remove(m_ioctx, "conf_rbd_cache")); | |
1548 | ASSERT_EQ(0, ictx->state->refresh()); | |
1549 | ASSERT_EQ(cache, ictx->cache); | |
1550 | close_image(ictx); | |
1551 | ||
1552 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::set(m_ioctx, | |
1553 | "conf_rbd_default_order", | |
1554 | "17")); | |
1555 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::set(m_ioctx, | |
1556 | "conf_rbd_journal_order", | |
1557 | "13")); | |
1558 | std::string image_name = get_temp_image_name(); | |
1559 | int order = 0; | |
1560 | uint64_t features; | |
1561 | ASSERT_TRUE(get_features(&features)); | |
1562 | ASSERT_EQ(0, create_image_full_pp(m_rbd, m_ioctx, image_name, m_image_size, | |
1563 | features, false, &order)); | |
1564 | ||
1565 | ASSERT_EQ(0, open_image(image_name, &ictx)); | |
1566 | ASSERT_EQ(ictx->order, 17); | |
1567 | ASSERT_EQ(ictx->config.get_val<uint64_t>("rbd_journal_order"), 13U); | |
1568 | ||
1569 | if (is_feature_enabled(RBD_FEATURE_JOURNALING)) { | |
1570 | uint8_t order; | |
1571 | uint8_t splay_width; | |
1572 | int64_t pool_id; | |
1573 | C_SaferCond cond; | |
1574 | cls::journal::client::get_immutable_metadata(m_ioctx, "journal." + ictx->id, | |
1575 | &order, &splay_width, &pool_id, | |
1576 | &cond); | |
1577 | ASSERT_EQ(0, cond.wait()); | |
1578 | ASSERT_EQ(order, 13); | |
1579 | ASSERT_EQ(0, ictx->operations->update_features(RBD_FEATURE_JOURNALING, | |
1580 | false)); | |
1581 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::set(m_ioctx, | |
1582 | "conf_rbd_journal_order", | |
1583 | "14")); | |
1584 | ASSERT_EQ(0, ictx->operations->update_features(RBD_FEATURE_JOURNALING, | |
1585 | true)); | |
1586 | ASSERT_EQ(ictx->config.get_val<uint64_t>("rbd_journal_order"), 14U); | |
1587 | ||
1588 | C_SaferCond cond1; | |
1589 | cls::journal::client::get_immutable_metadata(m_ioctx, "journal." + ictx->id, | |
1590 | &order, &splay_width, &pool_id, | |
1591 | &cond1); | |
1592 | ASSERT_EQ(0, cond1.wait()); | |
1593 | ASSERT_EQ(order, 14); | |
1594 | } | |
1595 | ||
1596 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::remove(m_ioctx, | |
1597 | "conf_rbd_default_order")); | |
1598 | ASSERT_EQ(0, librbd::api::PoolMetadata<>::remove(m_ioctx, | |
1599 | "conf_rbd_journal_order")); | |
1600 | } | |
1601 | ||
1602 | TEST_F(TestInternal, Sparsify) { | |
1603 | librbd::ImageCtx *ictx; | |
1604 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1605 | ||
1606 | bool sparsify_supported = is_sparsify_supported(ictx->data_ctx, | |
1607 | ictx->get_object_name(10)); | |
1608 | bool sparse_read_supported = is_sparse_read_supported( | |
1609 | ictx->data_ctx, ictx->get_object_name(10)); | |
1610 | ||
1611 | std::cout << "sparsify_supported=" << sparsify_supported << std::endl; | |
1612 | std::cout << "sparse_read_supported=" << sparse_read_supported << std::endl; | |
1613 | ||
1614 | librbd::NoOpProgressContext no_op; | |
1615 | ASSERT_EQ(0, ictx->operations->resize((1 << ictx->order) * 20, true, no_op)); | |
1616 | ||
1617 | bufferlist bl; | |
1618 | bl.append(std::string(4096, '\0')); | |
1619 | ||
1620 | ASSERT_EQ((ssize_t)bl.length(), | |
1621 | ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
1622 | ||
1623 | ASSERT_EQ((ssize_t)bl.length(), | |
1624 | ictx->io_work_queue->write((1 << ictx->order) * 1 + 512, | |
1625 | bl.length(), bufferlist{bl}, 0)); | |
1626 | ||
1627 | bl.append(std::string(4096, '1')); | |
1628 | bl.append(std::string(4096, '\0')); | |
1629 | bl.append(std::string(4096, '2')); | |
1630 | bl.append(std::string(4096 - 1, '\0')); | |
1631 | ASSERT_EQ((ssize_t)bl.length(), | |
1632 | ictx->io_work_queue->write((1 << ictx->order) * 10, bl.length(), | |
1633 | bufferlist{bl}, 0)); | |
1634 | ||
1635 | bufferlist bl2; | |
1636 | bl2.append(std::string(4096 - 1, '\0')); | |
1637 | ASSERT_EQ((ssize_t)bl2.length(), | |
1638 | ictx->io_work_queue->write((1 << ictx->order) * 10 + 4096 * 10, | |
1639 | bl2.length(), bufferlist{bl2}, 0)); | |
1640 | ||
1641 | ASSERT_EQ(0, ictx->io_work_queue->flush()); | |
1642 | ||
1643 | ASSERT_EQ(0, ictx->operations->sparsify(4096, no_op)); | |
1644 | ||
1645 | bufferptr read_ptr(bl.length()); | |
1646 | bufferlist read_bl; | |
1647 | read_bl.push_back(read_ptr); | |
1648 | ||
1649 | librbd::io::ReadResult read_result{&read_bl}; | |
1650 | ASSERT_EQ((ssize_t)read_bl.length(), | |
1651 | ictx->io_work_queue->read((1 << ictx->order) * 10, read_bl.length(), | |
1652 | librbd::io::ReadResult{read_result}, 0)); | |
1653 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
1654 | ||
1655 | std::string oid = ictx->get_object_name(0); | |
1656 | uint64_t size; | |
1657 | ASSERT_EQ(-ENOENT, ictx->data_ctx.stat(oid, &size, NULL)); | |
1658 | ||
1659 | oid = ictx->get_object_name(1); | |
1660 | ASSERT_EQ(-ENOENT, ictx->data_ctx.stat(oid, &size, NULL)); | |
1661 | ||
1662 | oid = ictx->get_object_name(10); | |
1663 | std::map<uint64_t, uint64_t> m; | |
1664 | std::map<uint64_t, uint64_t> expected_m; | |
1665 | auto read_len = bl.length(); | |
1666 | bl.clear(); | |
1667 | if (sparsify_supported && sparse_read_supported) { | |
1668 | expected_m = {{4096 * 1, 4096}, {4096 * 3, 4096}}; | |
1669 | bl.append(std::string(4096, '1')); | |
1670 | bl.append(std::string(4096, '2')); | |
1671 | } else { | |
1672 | expected_m = {{0, 4096 * 4}}; | |
1673 | bl.append(std::string(4096, '\0')); | |
1674 | bl.append(std::string(4096, '1')); | |
1675 | bl.append(std::string(4096, '\0')); | |
1676 | bl.append(std::string(4096, '2')); | |
1677 | } | |
1678 | read_bl.clear(); | |
1679 | EXPECT_EQ(static_cast<int>(expected_m.size()), | |
1680 | ictx->data_ctx.sparse_read(oid, m, read_bl, read_len, 0)); | |
1681 | EXPECT_EQ(m, expected_m); | |
1682 | EXPECT_TRUE(bl.contents_equal(read_bl)); | |
1683 | } | |
1684 | ||
1685 | ||
1686 | TEST_F(TestInternal, SparsifyClone) { | |
1687 | REQUIRE_FEATURE(RBD_FEATURE_LAYERING); | |
1688 | ||
1689 | librbd::ImageCtx *ictx; | |
1690 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1691 | ||
1692 | bool sparsify_supported = is_sparsify_supported(ictx->data_ctx, | |
1693 | ictx->get_object_name(10)); | |
1694 | std::cout << "sparsify_supported=" << sparsify_supported << std::endl; | |
1695 | ||
1696 | librbd::NoOpProgressContext no_op; | |
1697 | ASSERT_EQ(0, ictx->operations->resize((1 << ictx->order) * 10, true, no_op)); | |
1698 | ||
1699 | ASSERT_EQ(0, create_snapshot("snap", true)); | |
1700 | std::string clone_name = get_temp_image_name(); | |
1701 | int order = ictx->order; | |
1702 | ASSERT_EQ(0, librbd::clone(m_ioctx, m_image_name.c_str(), "snap", m_ioctx, | |
1703 | clone_name.c_str(), ictx->features, &order, 0, 0)); | |
1704 | close_image(ictx); | |
1705 | ||
1706 | ASSERT_EQ(0, open_image(clone_name, &ictx)); | |
1707 | ||
1708 | BOOST_SCOPE_EXIT_ALL(this, &ictx, clone_name) { | |
1709 | close_image(ictx); | |
1710 | librbd::NoOpProgressContext no_op; | |
1711 | EXPECT_EQ(0, librbd::api::Image<>::remove(m_ioctx, clone_name, no_op)); | |
1712 | }; | |
1713 | ||
1714 | ASSERT_EQ(0, ictx->operations->resize((1 << ictx->order) * 20, true, no_op)); | |
1715 | ||
1716 | bufferlist bl; | |
1717 | bl.append(std::string(4096, '\0')); | |
1718 | ||
1719 | ASSERT_EQ((ssize_t)bl.length(), | |
1720 | ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
1721 | ||
1722 | bl.append(std::string(4096, '1')); | |
1723 | bl.append(std::string(4096, '\0')); | |
1724 | bl.append(std::string(4096, '2')); | |
1725 | bl.append(std::string(4096, '\0')); | |
1726 | ASSERT_EQ((ssize_t)bl.length(), | |
1727 | ictx->io_work_queue->write((1 << ictx->order) * 10, bl.length(), | |
1728 | bufferlist{bl}, 0)); | |
1729 | ASSERT_EQ(0, ictx->io_work_queue->flush()); | |
1730 | ||
1731 | ASSERT_EQ(0, ictx->operations->sparsify(4096, no_op)); | |
1732 | ||
1733 | bufferptr read_ptr(bl.length()); | |
1734 | bufferlist read_bl; | |
1735 | read_bl.push_back(read_ptr); | |
1736 | ||
1737 | librbd::io::ReadResult read_result{&read_bl}; | |
1738 | ASSERT_EQ((ssize_t)read_bl.length(), | |
1739 | ictx->io_work_queue->read((1 << ictx->order) * 10, read_bl.length(), | |
1740 | librbd::io::ReadResult{read_result}, 0)); | |
1741 | ASSERT_TRUE(bl.contents_equal(read_bl)); | |
1742 | ||
1743 | std::string oid = ictx->get_object_name(0); | |
1744 | uint64_t size; | |
1745 | ASSERT_EQ(0, ictx->data_ctx.stat(oid, &size, NULL)); | |
1746 | ASSERT_EQ(0, ictx->data_ctx.read(oid, read_bl, 4096, 0)); | |
1747 | } | |
1748 | ||
1749 | TEST_F(TestInternal, MissingDataPool) { | |
1750 | REQUIRE_FORMAT_V2(); | |
1751 | ||
1752 | librbd::ImageCtx *ictx; | |
1753 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1754 | ASSERT_EQ(0, snap_create(*ictx, "snap1")); | |
1755 | std::string header_oid = ictx->header_oid; | |
1756 | close_image(ictx); | |
1757 | ||
1758 | // emulate non-existent data pool | |
1759 | int64_t pool_id = 1234; | |
1760 | std::string pool_name; | |
1761 | int r; | |
1762 | while ((r = _rados.pool_reverse_lookup(pool_id, &pool_name)) == 0) { | |
1763 | pool_id++; | |
1764 | } | |
1765 | ASSERT_EQ(r, -ENOENT); | |
1766 | bufferlist bl; | |
1767 | using ceph::encode; | |
1768 | encode(pool_id, bl); | |
1769 | ASSERT_EQ(0, m_ioctx.omap_set(header_oid, {{"data_pool_id", bl}})); | |
1770 | ||
1771 | ASSERT_EQ(0, open_image(m_image_name, &ictx)); | |
1772 | ||
1773 | ASSERT_FALSE(ictx->data_ctx.is_valid()); | |
1774 | ASSERT_EQ(pool_id, librbd::api::Image<>::get_data_pool_id(ictx)); | |
1775 | ||
1776 | librbd::image_info_t info; | |
1777 | ASSERT_EQ(0, librbd::info(ictx, info, sizeof(info))); | |
1778 | ||
1779 | vector<librbd::snap_info_t> snaps; | |
1780 | EXPECT_EQ(0, librbd::api::Snapshot<>::list(ictx, snaps)); | |
1781 | EXPECT_EQ(1U, snaps.size()); | |
1782 | EXPECT_EQ("snap1", snaps[0].name); | |
1783 | ||
1784 | bufferptr read_ptr(256); | |
1785 | bufferlist read_bl; | |
1786 | read_bl.push_back(read_ptr); | |
1787 | librbd::io::ReadResult read_result{&read_bl}; | |
1788 | ASSERT_EQ(-ENODEV, | |
1789 | ictx->io_work_queue->read(0, 256, | |
1790 | librbd::io::ReadResult{read_result}, 0)); | |
1791 | ASSERT_EQ(-ENODEV, | |
1792 | ictx->io_work_queue->write(0, bl.length(), bufferlist{bl}, 0)); | |
1793 | ASSERT_EQ(-ENODEV, ictx->io_work_queue->discard(0, 1, 256)); | |
1794 | ASSERT_EQ(-ENODEV, | |
1795 | ictx->io_work_queue->writesame(0, bl.length(), bufferlist{bl}, 0)); | |
1796 | uint64_t mismatch_off; | |
1797 | ASSERT_EQ(-ENODEV, | |
1798 | ictx->io_work_queue->compare_and_write(0, bl.length(), | |
1799 | bufferlist{bl}, | |
1800 | bufferlist{bl}, | |
1801 | &mismatch_off, 0)); | |
1802 | ASSERT_EQ(-ENODEV, ictx->io_work_queue->flush()); | |
1803 | ||
1804 | ASSERT_EQ(-ENODEV, snap_create(*ictx, "snap2")); | |
1805 | ASSERT_EQ(0, ictx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(), | |
1806 | "snap1")); | |
1807 | ||
1808 | librbd::NoOpProgressContext no_op; | |
1809 | ASSERT_EQ(-ENODEV, ictx->operations->resize(0, true, no_op)); | |
1810 | ||
1811 | close_image(ictx); | |
1812 | ||
1813 | ASSERT_EQ(0, librbd::api::Image<>::remove(m_ioctx, m_image_name, no_op)); | |
1814 | ||
1815 | ASSERT_EQ(0, create_image_pp(m_rbd, m_ioctx, m_image_name, m_image_size)); | |
1816 | } |