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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 | ||
f67539c2 TL |
4 | #include "common/ceph_json.h" |
5 | #include "common/errno.h" | |
6 | #include "common/Formatter.h" | |
7c673cae FG |
7 | #include "tools/rbd/ArgumentTypes.h" |
8 | #include "tools/rbd/Shell.h" | |
9 | #include "tools/rbd/Utils.h" | |
10 | #include "include/rbd_types.h" | |
11fdf7f2 | 11 | #include "include/stringify.h" |
7c673cae FG |
12 | #include <iostream> |
13 | #include <boost/program_options.hpp> | |
14 | ||
15 | namespace rbd { | |
16 | namespace action { | |
17 | namespace status { | |
18 | ||
19 | namespace at = argument_types; | |
20 | namespace po = boost::program_options; | |
21 | ||
f67539c2 TL |
22 | namespace { |
23 | ||
24 | const std::string IMAGE_CACHE_STATE = ".librbd/image_cache_state"; | |
25 | ||
26 | struct ImageCacheState { | |
27 | bool present = false; | |
28 | bool clean = false; | |
29 | int size = 0; | |
30 | std::string host; | |
31 | std::string path; | |
32 | }; | |
33 | ||
34 | bool image_cache_parse(const std::string& s, ImageCacheState &cache_state) { | |
35 | JSONParser p; | |
36 | JSONFormattable f; | |
37 | bool success = p.parse(s.c_str(), s.size()); | |
38 | if (success) { | |
39 | decode_json_obj(f, &p); | |
40 | if ((success = f.exists("present"))) { | |
41 | cache_state.present = (bool)f["present"]; | |
42 | } | |
43 | if (success && (success = f.exists("clean"))) { | |
44 | cache_state.present = (bool)f["clean"]; | |
45 | } | |
46 | if (success && (success = f.exists("pwl_size"))) { | |
47 | cache_state.size = (int)f["pwl_size"]; | |
48 | } | |
49 | if (success && (success = f.exists("pwl_host"))) { | |
50 | cache_state.host = (std::string)f["pwl_host"]; | |
51 | } | |
52 | if (success && (success = f.exists("pwl_path"))) { | |
53 | cache_state.path = (std::string)f["pwl_path"]; | |
54 | } | |
55 | } | |
56 | return success; | |
57 | } | |
58 | ||
59 | } // anonymous namespace | |
60 | ||
11fdf7f2 TL |
61 | static int do_show_status(librados::IoCtx& io_ctx, const std::string &image_name, |
62 | librbd::Image &image, Formatter *f) | |
7c673cae | 63 | { |
7c673cae | 64 | int r; |
11fdf7f2 | 65 | std::list<librbd::image_watcher_t> watchers; |
7c673cae | 66 | |
11fdf7f2 | 67 | r = image.list_watchers(watchers); |
7c673cae FG |
68 | if (r < 0) |
69 | return r; | |
70 | ||
11fdf7f2 TL |
71 | uint64_t features; |
72 | r = image.features(&features); | |
73 | if (r < 0) { | |
74 | return r; | |
75 | } | |
76 | ||
77 | librbd::image_migration_status_t migration_status; | |
f67539c2 | 78 | std::string source_spec; |
11fdf7f2 TL |
79 | std::string source_pool_name; |
80 | std::string dest_pool_name; | |
81 | std::string migration_state; | |
82 | if ((features & RBD_FEATURE_MIGRATING) != 0) { | |
83 | r = librbd::RBD().migration_status(io_ctx, image_name.c_str(), | |
84 | &migration_status, | |
85 | sizeof(migration_status)); | |
7c673cae | 86 | if (r < 0) { |
11fdf7f2 TL |
87 | std::cerr << "rbd: getting migration status failed: " << cpp_strerror(r) |
88 | << std::endl; | |
89 | // not fatal | |
90 | } else { | |
f67539c2 TL |
91 | if (migration_status.source_pool_id >= 0) { |
92 | librados::IoCtx src_io_ctx; | |
93 | r = librados::Rados(io_ctx).ioctx_create2(migration_status.source_pool_id, src_io_ctx); | |
94 | if (r < 0) { | |
95 | source_pool_name = stringify(migration_status.source_pool_id); | |
96 | } else { | |
97 | source_pool_name = src_io_ctx.get_pool_name(); | |
98 | } | |
11fdf7f2 | 99 | } else { |
f67539c2 TL |
100 | r = image.get_migration_source_spec(&source_spec); |
101 | if (r < 0) { | |
102 | std::cerr << "rbd: getting migration source spec failed: " | |
103 | << cpp_strerror(r) << std::endl; | |
104 | } | |
11fdf7f2 | 105 | } |
7c673cae | 106 | |
11fdf7f2 TL |
107 | librados::IoCtx dst_io_ctx; |
108 | r = librados::Rados(io_ctx).ioctx_create2(migration_status.dest_pool_id, dst_io_ctx); | |
109 | if (r < 0) { | |
110 | dest_pool_name = stringify(migration_status.dest_pool_id); | |
111 | } else { | |
112 | dest_pool_name = dst_io_ctx.get_pool_name(); | |
113 | } | |
7c673cae | 114 | |
11fdf7f2 TL |
115 | switch (migration_status.state) { |
116 | case RBD_IMAGE_MIGRATION_STATE_ERROR: | |
117 | migration_state = "error"; | |
118 | break; | |
119 | case RBD_IMAGE_MIGRATION_STATE_PREPARING: | |
120 | migration_state = "preparing"; | |
121 | break; | |
122 | case RBD_IMAGE_MIGRATION_STATE_PREPARED: | |
123 | migration_state = "prepared"; | |
124 | break; | |
125 | case RBD_IMAGE_MIGRATION_STATE_EXECUTING: | |
126 | migration_state = "executing"; | |
127 | break; | |
128 | case RBD_IMAGE_MIGRATION_STATE_EXECUTED: | |
129 | migration_state = "executed"; | |
130 | break; | |
f91f0fd5 TL |
131 | case RBD_IMAGE_MIGRATION_STATE_ABORTING: |
132 | migration_state = "aborting"; | |
133 | break; | |
11fdf7f2 TL |
134 | default: |
135 | migration_state = "unknown"; | |
136 | } | |
137 | } | |
138 | } | |
7c673cae | 139 | |
f67539c2 TL |
140 | ImageCacheState cache_state; |
141 | if (features & RBD_FEATURE_DIRTY_CACHE) { | |
142 | std::string image_cache_str; | |
143 | r = image.metadata_get(IMAGE_CACHE_STATE, &image_cache_str); | |
144 | if (r < 0) { | |
145 | std::cerr << "rbd: getting image cache status failed: " << cpp_strerror(r) | |
146 | << std::endl; | |
147 | } else { | |
148 | r = image_cache_parse(image_cache_str, cache_state); | |
149 | if (r < 0) { | |
150 | std::cerr << "rbd: image cache metadata is corrupted: " << cpp_strerror(r) | |
151 | << std::endl; | |
152 | } | |
153 | } | |
154 | } | |
155 | ||
7c673cae FG |
156 | if (f) |
157 | f->open_object_section("status"); | |
158 | ||
159 | if (f) { | |
160 | f->open_array_section("watchers"); | |
11fdf7f2 | 161 | for (auto &watcher : watchers) { |
7c673cae | 162 | f->open_object_section("watcher"); |
11fdf7f2 TL |
163 | f->dump_string("address", watcher.addr); |
164 | f->dump_unsigned("client", watcher.id); | |
165 | f->dump_unsigned("cookie", watcher.cookie); | |
7c673cae FG |
166 | f->close_section(); |
167 | } | |
11fdf7f2 TL |
168 | f->close_section(); // watchers |
169 | if (!migration_state.empty()) { | |
170 | f->open_object_section("migration"); | |
f67539c2 TL |
171 | if (!source_spec.empty()) { |
172 | f->dump_string("source_spec", source_spec); | |
173 | } else { | |
174 | f->dump_string("source_pool_name", source_pool_name); | |
175 | f->dump_string("source_pool_namespace", | |
176 | migration_status.source_pool_namespace); | |
177 | f->dump_string("source_image_name", migration_status.source_image_name); | |
178 | f->dump_string("source_image_id", migration_status.source_image_id); | |
179 | } | |
11fdf7f2 TL |
180 | f->dump_string("dest_pool_name", dest_pool_name); |
181 | f->dump_string("dest_pool_namespace", | |
182 | migration_status.dest_pool_namespace); | |
183 | f->dump_string("dest_image_name", migration_status.dest_image_name); | |
184 | f->dump_string("dest_image_id", migration_status.dest_image_id); | |
185 | f->dump_string("state", migration_state); | |
186 | f->dump_string("state_description", migration_status.state_description); | |
187 | f->close_section(); // migration | |
188 | } | |
f67539c2 TL |
189 | if (cache_state.present) { |
190 | f->open_object_section("image_cache_state"); | |
191 | f->dump_bool("clean", cache_state.clean); | |
192 | f->dump_int("size", cache_state.size); | |
193 | f->dump_string("host", cache_state.host); | |
194 | f->dump_string("path", cache_state.path); | |
195 | f->close_section(); // image_cache_state | |
196 | } | |
7c673cae FG |
197 | } else { |
198 | if (watchers.size()) { | |
199 | std::cout << "Watchers:" << std::endl; | |
11fdf7f2 TL |
200 | for (auto &watcher : watchers) { |
201 | std::cout << "\twatcher=" << watcher.addr << " client." << watcher.id | |
202 | << " cookie=" << watcher.cookie << std::endl; | |
7c673cae FG |
203 | } |
204 | } else { | |
205 | std::cout << "Watchers: none" << std::endl; | |
206 | } | |
11fdf7f2 TL |
207 | if (!migration_state.empty()) { |
208 | if (!migration_status.source_pool_namespace.empty()) { | |
209 | source_pool_name += ("/" + migration_status.source_pool_namespace); | |
210 | } | |
211 | if (!migration_status.dest_pool_namespace.empty()) { | |
212 | dest_pool_name += ("/" + migration_status.dest_pool_namespace); | |
213 | } | |
214 | ||
215 | std::cout << "Migration:" << std::endl; | |
f67539c2 TL |
216 | std::cout << "\tsource: "; |
217 | if (!source_spec.empty()) { | |
218 | std::cout << source_spec; | |
219 | } else { | |
220 | std::cout << source_pool_name << "/" | |
221 | << migration_status.source_image_name; | |
222 | if (!migration_status.source_image_id.empty()) { | |
223 | std::cout << " (" << migration_status.source_image_id << ")"; | |
224 | } | |
11fdf7f2 TL |
225 | } |
226 | std::cout << std::endl; | |
227 | std::cout << "\tdestination: " << dest_pool_name << "/" | |
228 | << migration_status.dest_image_name << " (" | |
229 | << migration_status.dest_image_id << ")" << std::endl; | |
230 | std::cout << "\tstate: " << migration_state; | |
231 | if (!migration_status.state_description.empty()) { | |
232 | std::cout << " (" << migration_status.state_description << ")"; | |
233 | } | |
234 | std::cout << std::endl; | |
235 | } | |
f67539c2 TL |
236 | |
237 | if (cache_state.present) { | |
238 | std::cout << "Image cache state:" << std::endl; | |
239 | std::cout << "\tclean: " << (cache_state.clean ? "true" : "false") | |
240 | << std::endl | |
241 | << "\tsize: " << byte_u_t(cache_state.size) << std::endl | |
242 | << "\thost: " << cache_state.host << std::endl | |
243 | << "\tpath: " << cache_state.path << std::endl; | |
244 | } | |
7c673cae | 245 | } |
11fdf7f2 | 246 | |
7c673cae | 247 | if (f) { |
11fdf7f2 | 248 | f->close_section(); // status |
7c673cae FG |
249 | f->flush(std::cout); |
250 | } | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | void get_arguments(po::options_description *positional, | |
256 | po::options_description *options) { | |
257 | at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE); | |
258 | at::add_format_options(options); | |
259 | } | |
260 | ||
11fdf7f2 TL |
261 | int execute(const po::variables_map &vm, |
262 | const std::vector<std::string> &ceph_global_init_args) { | |
7c673cae FG |
263 | size_t arg_index = 0; |
264 | std::string pool_name; | |
11fdf7f2 | 265 | std::string namespace_name; |
7c673cae FG |
266 | std::string image_name; |
267 | std::string snap_name; | |
268 | int r = utils::get_pool_image_snapshot_names( | |
11fdf7f2 TL |
269 | vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name, |
270 | &image_name, &snap_name, true, utils::SNAPSHOT_PRESENCE_NONE, | |
271 | utils::SPEC_VALIDATION_NONE); | |
7c673cae FG |
272 | if (r < 0) { |
273 | return r; | |
274 | } | |
275 | ||
276 | at::Format::Formatter formatter; | |
277 | r = utils::get_formatter(vm, &formatter); | |
278 | if (r < 0) { | |
279 | return r; | |
280 | } | |
281 | ||
282 | librados::Rados rados; | |
283 | librados::IoCtx io_ctx; | |
284 | librbd::Image image; | |
11fdf7f2 TL |
285 | r = utils::init_and_open_image(pool_name, namespace_name, image_name, "", "", |
286 | true, &rados, &io_ctx, &image); | |
7c673cae FG |
287 | if (r < 0) { |
288 | return r; | |
289 | } | |
290 | ||
11fdf7f2 | 291 | r = do_show_status(io_ctx, image_name, image, formatter.get()); |
7c673cae FG |
292 | if (r < 0) { |
293 | std::cerr << "rbd: show status failed: " << cpp_strerror(r) << std::endl; | |
294 | return r; | |
295 | } | |
296 | return 0; | |
297 | } | |
298 | ||
299 | Shell::Action action( | |
300 | {"status"}, {}, "Show the status of this image.", "", &get_arguments, | |
301 | &execute); | |
302 | ||
303 | } // namespace status | |
304 | } // namespace action | |
305 | } // namespace rbd |