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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 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2014 John Spray <john.spray@inktank.com> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | */ | |
13 | ||
14 | // Include this first to get python headers earlier | |
15 | #include "PyState.h" | |
16 | ||
17 | #include <boost/tokenizer.hpp> | |
18 | #include "common/errno.h" | |
19 | #include "include/stringify.h" | |
20 | ||
21 | #include "PyFormatter.h" | |
22 | ||
23 | #include "osd/OSDMap.h" | |
24 | #include "mon/MonMap.h" | |
25 | ||
26 | #include "mgr/MgrContext.h" | |
27 | ||
28 | #include "PyModules.h" | |
29 | ||
30 | #define dout_context g_ceph_context | |
31 | #define dout_subsys ceph_subsys_mgr | |
32 | ||
33 | #undef dout_prefix | |
34 | #define dout_prefix *_dout << "mgr[py] " | |
35 | ||
36 | namespace { | |
37 | PyObject* log_write(PyObject*, PyObject* args) { | |
38 | char* m = nullptr; | |
39 | if (PyArg_ParseTuple(args, "s", &m)) { | |
40 | auto len = strlen(m); | |
41 | if (len && m[len-1] == '\n') { | |
42 | m[len-1] = '\0'; | |
43 | } | |
44 | dout(4) << m << dendl; | |
45 | } | |
46 | Py_RETURN_NONE; | |
47 | } | |
48 | ||
49 | PyObject* log_flush(PyObject*, PyObject*){ | |
50 | Py_RETURN_NONE; | |
51 | } | |
52 | ||
53 | static PyMethodDef log_methods[] = { | |
54 | {"write", log_write, METH_VARARGS, "write stdout and stderr"}, | |
55 | {"flush", log_flush, METH_VARARGS, "flush"}, | |
56 | {nullptr, nullptr, 0, nullptr} | |
57 | }; | |
58 | } | |
59 | ||
60 | #undef dout_prefix | |
61 | #define dout_prefix *_dout << "mgr " << __func__ << " " | |
62 | ||
63 | PyModules::PyModules(DaemonStateIndex &ds, ClusterState &cs, MonClient &mc, | |
64 | Objecter &objecter_, Client &client_, | |
65 | Finisher &f) | |
66 | : daemon_state(ds), cluster_state(cs), monc(mc), | |
67 | objecter(objecter_), client(client_), | |
68 | finisher(f) | |
69 | {} | |
70 | ||
71 | // we can not have the default destructor in header, because ServeThread is | |
72 | // still an "incomplete" type. so we need to define the destructor here. | |
73 | PyModules::~PyModules() = default; | |
74 | ||
75 | void PyModules::dump_server(const std::string &hostname, | |
76 | const DaemonStateCollection &dmc, | |
77 | Formatter *f) | |
78 | { | |
79 | f->dump_string("hostname", hostname); | |
80 | f->open_array_section("services"); | |
81 | std::string ceph_version; | |
82 | ||
83 | for (const auto &i : dmc) { | |
84 | const auto &key = i.first; | |
85 | const std::string str_type = ceph_entity_type_name(key.first); | |
86 | const std::string &svc_name = key.second; | |
87 | ||
88 | // TODO: pick the highest version, and make sure that | |
89 | // somewhere else (during health reporting?) we are | |
90 | // indicating to the user if we see mixed versions | |
91 | auto ver_iter = i.second->metadata.find("ceph_version"); | |
92 | if (ver_iter != i.second->metadata.end()) { | |
93 | ceph_version = i.second->metadata.at("ceph_version"); | |
94 | } | |
95 | ||
96 | f->open_object_section("service"); | |
97 | f->dump_string("type", str_type); | |
98 | f->dump_string("id", svc_name); | |
99 | f->close_section(); | |
100 | } | |
101 | f->close_section(); | |
102 | ||
103 | f->dump_string("ceph_version", ceph_version); | |
104 | } | |
105 | ||
106 | ||
107 | ||
108 | PyObject *PyModules::get_server_python(const std::string &hostname) | |
109 | { | |
110 | PyThreadState *tstate = PyEval_SaveThread(); | |
111 | Mutex::Locker l(lock); | |
112 | PyEval_RestoreThread(tstate); | |
113 | dout(10) << " (" << hostname << ")" << dendl; | |
114 | ||
115 | auto dmc = daemon_state.get_by_server(hostname); | |
116 | ||
117 | PyFormatter f; | |
118 | dump_server(hostname, dmc, &f); | |
119 | return f.get(); | |
120 | } | |
121 | ||
122 | ||
123 | PyObject *PyModules::list_servers_python() | |
124 | { | |
125 | PyThreadState *tstate = PyEval_SaveThread(); | |
126 | Mutex::Locker l(lock); | |
127 | PyEval_RestoreThread(tstate); | |
128 | dout(10) << " >" << dendl; | |
129 | ||
130 | PyFormatter f(false, true); | |
131 | const auto &all = daemon_state.get_all_servers(); | |
132 | for (const auto &i : all) { | |
133 | const auto &hostname = i.first; | |
134 | ||
135 | f.open_object_section("server"); | |
136 | dump_server(hostname, i.second, &f); | |
137 | f.close_section(); | |
138 | } | |
139 | ||
140 | return f.get(); | |
141 | } | |
142 | ||
143 | PyObject *PyModules::get_metadata_python(std::string const &handle, | |
144 | entity_type_t svc_type, const std::string &svc_id) | |
145 | { | |
146 | auto metadata = daemon_state.get(DaemonKey(svc_type, svc_id)); | |
147 | PyFormatter f; | |
148 | f.dump_string("hostname", metadata->hostname); | |
149 | for (const auto &i : metadata->metadata) { | |
150 | f.dump_string(i.first.c_str(), i.second); | |
151 | } | |
152 | ||
153 | return f.get(); | |
154 | } | |
155 | ||
156 | ||
157 | PyObject *PyModules::get_python(const std::string &what) | |
158 | { | |
159 | PyThreadState *tstate = PyEval_SaveThread(); | |
160 | Mutex::Locker l(lock); | |
161 | PyEval_RestoreThread(tstate); | |
162 | ||
163 | if (what == "fs_map") { | |
164 | PyFormatter f; | |
165 | cluster_state.with_fsmap([&f](const FSMap &fsmap) { | |
166 | fsmap.dump(&f); | |
167 | }); | |
168 | return f.get(); | |
169 | } else if (what == "osdmap_crush_map_text") { | |
170 | bufferlist rdata; | |
171 | cluster_state.with_osdmap([&rdata](const OSDMap &osd_map){ | |
172 | osd_map.crush->encode(rdata, CEPH_FEATURES_SUPPORTED_DEFAULT); | |
173 | }); | |
174 | std::string crush_text = rdata.to_str(); | |
175 | return PyString_FromString(crush_text.c_str()); | |
176 | } else if (what.substr(0, 7) == "osd_map") { | |
177 | PyFormatter f; | |
178 | cluster_state.with_osdmap([&f, &what](const OSDMap &osd_map){ | |
179 | if (what == "osd_map") { | |
180 | osd_map.dump(&f); | |
181 | } else if (what == "osd_map_tree") { | |
182 | osd_map.print_tree(&f, nullptr); | |
183 | } else if (what == "osd_map_crush") { | |
184 | osd_map.crush->dump(&f); | |
185 | } | |
186 | }); | |
187 | return f.get(); | |
188 | } else if (what == "config") { | |
189 | PyFormatter f; | |
190 | g_conf->show_config(&f); | |
191 | return f.get(); | |
192 | } else if (what == "mon_map") { | |
193 | PyFormatter f; | |
194 | cluster_state.with_monmap( | |
195 | [&f](const MonMap &monmap) { | |
196 | monmap.dump(&f); | |
197 | } | |
198 | ); | |
199 | return f.get(); | |
200 | } else if (what == "osd_metadata") { | |
201 | PyFormatter f; | |
202 | auto dmc = daemon_state.get_by_type(CEPH_ENTITY_TYPE_OSD); | |
203 | for (const auto &i : dmc) { | |
204 | f.open_object_section(i.first.second.c_str()); | |
205 | f.dump_string("hostname", i.second->hostname); | |
206 | for (const auto &j : i.second->metadata) { | |
207 | f.dump_string(j.first.c_str(), j.second); | |
208 | } | |
209 | f.close_section(); | |
210 | } | |
211 | return f.get(); | |
212 | } else if (what == "pg_summary") { | |
213 | PyFormatter f; | |
214 | cluster_state.with_pgmap( | |
215 | [&f](const PGMap &pg_map) { | |
216 | std::map<std::string, std::map<std::string, uint32_t> > osds; | |
217 | std::map<std::string, std::map<std::string, uint32_t> > pools; | |
218 | std::map<std::string, uint32_t> all; | |
219 | for (const auto &i : pg_map.pg_stat) { | |
220 | const auto pool = i.first.m_pool; | |
221 | const std::string state = pg_state_string(i.second.state); | |
222 | // Insert to per-pool map | |
223 | pools[stringify(pool)][state]++; | |
224 | for (const auto &osd_id : i.second.acting) { | |
225 | osds[stringify(osd_id)][state]++; | |
226 | } | |
227 | all[state]++; | |
228 | } | |
229 | f.open_object_section("by_osd"); | |
230 | for (const auto &i : osds) { | |
231 | f.open_object_section(i.first.c_str()); | |
232 | for (const auto &j : i.second) { | |
233 | f.dump_int(j.first.c_str(), j.second); | |
234 | } | |
235 | f.close_section(); | |
236 | } | |
237 | f.close_section(); | |
238 | f.open_object_section("by_pool"); | |
239 | for (const auto &i : pools) { | |
240 | f.open_object_section(i.first.c_str()); | |
241 | for (const auto &j : i.second) { | |
242 | f.dump_int(j.first.c_str(), j.second); | |
243 | } | |
244 | f.close_section(); | |
245 | } | |
246 | f.close_section(); | |
247 | f.open_object_section("all"); | |
248 | for (const auto &i : all) { | |
249 | f.dump_int(i.first.c_str(), i.second); | |
250 | } | |
251 | f.close_section(); | |
252 | } | |
253 | ); | |
254 | return f.get(); | |
255 | ||
256 | } else if (what == "df") { | |
257 | PyFormatter f; | |
258 | ||
259 | cluster_state.with_osdmap([this, &f](const OSDMap &osd_map){ | |
260 | cluster_state.with_pgmap( | |
261 | [&osd_map, &f](const PGMap &pg_map) { | |
262 | pg_map.dump_fs_stats(nullptr, &f, true); | |
263 | pg_map.dump_pool_stats(osd_map, nullptr, &f, true); | |
264 | }); | |
265 | }); | |
266 | return f.get(); | |
267 | } else if (what == "osd_stats") { | |
268 | PyFormatter f; | |
269 | cluster_state.with_pgmap( | |
270 | [&f](const PGMap &pg_map) { | |
271 | pg_map.dump_osd_stats(&f); | |
272 | }); | |
273 | return f.get(); | |
274 | } else if (what == "health" || what == "mon_status") { | |
275 | PyFormatter f; | |
276 | bufferlist json; | |
277 | if (what == "health") { | |
278 | json = cluster_state.get_health(); | |
279 | } else if (what == "mon_status") { | |
280 | json = cluster_state.get_mon_status(); | |
281 | } else { | |
282 | assert(false); | |
283 | } | |
284 | f.dump_string("json", json.to_str()); | |
285 | return f.get(); | |
286 | } else { | |
287 | derr << "Python module requested unknown data '" << what << "'" << dendl; | |
288 | Py_RETURN_NONE; | |
289 | } | |
290 | } | |
291 | ||
292 | std::string PyModules::get_site_packages() | |
293 | { | |
294 | std::stringstream site_packages; | |
295 | ||
296 | // CPython doesn't auto-add site-packages dirs to sys.path for us, | |
297 | // but it does provide a module that we can ask for them. | |
298 | auto site_module = PyImport_ImportModule("site"); | |
299 | assert(site_module); | |
300 | ||
301 | auto site_packages_fn = PyObject_GetAttrString(site_module, "getsitepackages"); | |
302 | if (site_packages_fn != nullptr) { | |
303 | auto site_packages_list = PyObject_CallObject(site_packages_fn, nullptr); | |
304 | assert(site_packages_list); | |
305 | ||
306 | auto n = PyList_Size(site_packages_list); | |
307 | for (Py_ssize_t i = 0; i < n; ++i) { | |
308 | if (i != 0) { | |
309 | site_packages << ":"; | |
310 | } | |
311 | site_packages << PyString_AsString(PyList_GetItem(site_packages_list, i)); | |
312 | } | |
313 | ||
314 | Py_DECREF(site_packages_list); | |
315 | Py_DECREF(site_packages_fn); | |
316 | } else { | |
317 | // Fall back to generating our own site-packages paths by imitating | |
318 | // what the standard site.py does. This is annoying but it lets us | |
319 | // run inside virtualenvs :-/ | |
320 | ||
321 | auto site_packages_fn = PyObject_GetAttrString(site_module, "addsitepackages"); | |
322 | assert(site_packages_fn); | |
323 | ||
324 | auto known_paths = PySet_New(nullptr); | |
325 | auto pArgs = PyTuple_Pack(1, known_paths); | |
326 | PyObject_CallObject(site_packages_fn, pArgs); | |
327 | Py_DECREF(pArgs); | |
328 | Py_DECREF(known_paths); | |
329 | Py_DECREF(site_packages_fn); | |
330 | ||
331 | auto sys_module = PyImport_ImportModule("sys"); | |
332 | assert(sys_module); | |
333 | auto sys_path = PyObject_GetAttrString(sys_module, "path"); | |
334 | assert(sys_path); | |
335 | ||
336 | dout(1) << "sys.path:" << dendl; | |
337 | auto n = PyList_Size(sys_path); | |
338 | bool first = true; | |
339 | for (Py_ssize_t i = 0; i < n; ++i) { | |
340 | dout(1) << " " << PyString_AsString(PyList_GetItem(sys_path, i)) << dendl; | |
341 | if (first) { | |
342 | first = false; | |
343 | } else { | |
344 | site_packages << ":"; | |
345 | } | |
346 | site_packages << PyString_AsString(PyList_GetItem(sys_path, i)); | |
347 | } | |
348 | ||
349 | Py_DECREF(sys_path); | |
350 | Py_DECREF(sys_module); | |
351 | } | |
352 | ||
353 | Py_DECREF(site_module); | |
354 | ||
355 | return site_packages.str(); | |
356 | } | |
357 | ||
358 | ||
359 | int PyModules::init() | |
360 | { | |
361 | Mutex::Locker locker(lock); | |
362 | ||
363 | global_handle = this; | |
364 | ||
365 | // Set up global python interpreter | |
366 | Py_SetProgramName(const_cast<char*>(PYTHON_EXECUTABLE)); | |
367 | Py_InitializeEx(0); | |
368 | ||
369 | // Some python modules do not cope with an unpopulated argv, so lets | |
370 | // fake one. This step also picks up site-packages into sys.path. | |
371 | const char *argv[] = {"ceph-mgr"}; | |
372 | PySys_SetArgv(1, (char**)argv); | |
373 | ||
374 | if (g_conf->daemonize) { | |
375 | auto py_logger = Py_InitModule("ceph_logger", log_methods); | |
376 | #if PY_MAJOR_VERSION >= 3 | |
377 | PySys_SetObject("stderr", py_logger); | |
378 | PySys_SetObject("stdout", py_logger); | |
379 | #else | |
380 | PySys_SetObject(const_cast<char*>("stderr"), py_logger); | |
381 | PySys_SetObject(const_cast<char*>("stdout"), py_logger); | |
382 | #endif | |
383 | } | |
384 | // Populate python namespace with callable hooks | |
385 | Py_InitModule("ceph_state", CephStateMethods); | |
386 | ||
387 | // Configure sys.path to include mgr_module_path | |
388 | std::string sys_path = std::string(Py_GetPath()) + ":" + get_site_packages() | |
389 | + ":" + g_conf->mgr_module_path; | |
390 | dout(10) << "Computed sys.path '" << sys_path << "'" << dendl; | |
391 | PySys_SetPath((char*)(sys_path.c_str())); | |
392 | ||
393 | // Let CPython know that we will be calling it back from other | |
394 | // threads in future. | |
395 | if (! PyEval_ThreadsInitialized()) { | |
396 | PyEval_InitThreads(); | |
397 | } | |
398 | ||
399 | // Load python code | |
400 | boost::tokenizer<> tok(g_conf->mgr_modules); | |
401 | for(const auto& module_name : tok) { | |
402 | dout(1) << "Loading python module '" << module_name << "'" << dendl; | |
403 | auto mod = std::unique_ptr<MgrPyModule>(new MgrPyModule(module_name)); | |
404 | int r = mod->load(); | |
405 | if (r != 0) { | |
406 | derr << "Error loading module '" << module_name << "': " | |
407 | << cpp_strerror(r) << dendl; | |
408 | derr << handle_pyerror() << dendl; | |
409 | // Don't drop out here, load the other modules | |
410 | } else { | |
411 | // Success! | |
412 | modules[module_name] = std::move(mod); | |
413 | } | |
414 | } | |
415 | ||
416 | // Drop the GIL | |
417 | PyEval_SaveThread(); | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | class ServeThread : public Thread | |
423 | { | |
424 | MgrPyModule *mod; | |
425 | ||
426 | public: | |
427 | ServeThread(MgrPyModule *mod_) | |
428 | : mod(mod_) {} | |
429 | ||
430 | void *entry() override | |
431 | { | |
432 | PyGILState_STATE gstate; | |
433 | gstate = PyGILState_Ensure(); | |
434 | ||
435 | dout(4) << "Entering thread for " << mod->get_name() << dendl; | |
436 | mod->serve(); | |
437 | ||
438 | PyGILState_Release(gstate); | |
439 | ||
440 | return nullptr; | |
441 | } | |
442 | }; | |
443 | ||
444 | void PyModules::start() | |
445 | { | |
446 | Mutex::Locker l(lock); | |
447 | ||
448 | dout(1) << "Creating threads for " << modules.size() << " modules" << dendl; | |
449 | for (auto& i : modules) { | |
450 | auto thread = new ServeThread(i.second.get()); | |
451 | serve_threads[i.first].reset(thread); | |
452 | } | |
453 | ||
454 | for (auto &i : serve_threads) { | |
455 | std::ostringstream thread_name; | |
456 | thread_name << "mgr." << i.first; | |
457 | dout(4) << "Starting thread for " << i.first << dendl; | |
458 | i.second->create(thread_name.str().c_str()); | |
459 | } | |
460 | } | |
461 | ||
462 | void PyModules::shutdown() | |
463 | { | |
464 | Mutex::Locker locker(lock); | |
465 | assert(global_handle); | |
466 | ||
467 | // Signal modules to drop out of serve() and/or tear down resources | |
468 | for (auto &i : modules) { | |
469 | auto module = i.second.get(); | |
470 | const auto& name = i.first; | |
471 | dout(10) << "waiting for module " << name << " to shutdown" << dendl; | |
472 | module->shutdown(); | |
473 | dout(10) << "module " << name << " shutdown" << dendl; | |
474 | } | |
475 | ||
476 | // For modules implementing serve(), finish the threads where we | |
477 | // were running that. | |
478 | for (auto &i : serve_threads) { | |
479 | lock.Unlock(); | |
480 | i.second->join(); | |
481 | lock.Lock(); | |
482 | } | |
483 | serve_threads.clear(); | |
484 | ||
485 | modules.clear(); | |
486 | ||
487 | PyGILState_Ensure(); | |
488 | Py_Finalize(); | |
489 | ||
490 | // nobody needs me anymore. | |
491 | global_handle = nullptr; | |
492 | } | |
493 | ||
494 | void PyModules::notify_all(const std::string ¬ify_type, | |
495 | const std::string ¬ify_id) | |
496 | { | |
497 | Mutex::Locker l(lock); | |
498 | ||
499 | dout(10) << __func__ << ": notify_all " << notify_type << dendl; | |
500 | for (auto& i : modules) { | |
501 | auto module = i.second.get(); | |
502 | // Send all python calls down a Finisher to avoid blocking | |
503 | // C++ code, and avoid any potential lock cycles. | |
504 | finisher.queue(new FunctionContext([module, notify_type, notify_id](int r){ | |
505 | module->notify(notify_type, notify_id); | |
506 | })); | |
507 | } | |
508 | } | |
509 | ||
510 | void PyModules::notify_all(const LogEntry &log_entry) | |
511 | { | |
512 | Mutex::Locker l(lock); | |
513 | ||
514 | dout(10) << __func__ << ": notify_all (clog)" << dendl; | |
515 | for (auto& i : modules) { | |
516 | auto module = i.second.get(); | |
517 | // Send all python calls down a Finisher to avoid blocking | |
518 | // C++ code, and avoid any potential lock cycles. | |
519 | // | |
520 | // Note intentional use of non-reference lambda binding on | |
521 | // log_entry: we take a copy because caller's instance is | |
522 | // probably ephemeral. | |
523 | finisher.queue(new FunctionContext([module, log_entry](int r){ | |
524 | module->notify_clog(log_entry); | |
525 | })); | |
526 | } | |
527 | } | |
528 | ||
529 | bool PyModules::get_config(const std::string &handle, | |
530 | const std::string &key, std::string *val) const | |
531 | { | |
532 | PyThreadState *tstate = PyEval_SaveThread(); | |
533 | Mutex::Locker l(lock); | |
534 | PyEval_RestoreThread(tstate); | |
535 | ||
536 | const std::string global_key = config_prefix + handle + "." + key; | |
537 | ||
538 | if (config_cache.count(global_key)) { | |
539 | *val = config_cache.at(global_key); | |
540 | return true; | |
541 | } else { | |
542 | return false; | |
543 | } | |
544 | } | |
545 | ||
546 | void PyModules::set_config(const std::string &handle, | |
547 | const std::string &key, const std::string &val) | |
548 | { | |
549 | const std::string global_key = config_prefix + handle + "." + key; | |
550 | ||
551 | Command set_cmd; | |
552 | { | |
553 | PyThreadState *tstate = PyEval_SaveThread(); | |
554 | Mutex::Locker l(lock); | |
555 | PyEval_RestoreThread(tstate); | |
556 | config_cache[global_key] = val; | |
557 | ||
558 | std::ostringstream cmd_json; | |
559 | ||
560 | JSONFormatter jf; | |
561 | jf.open_object_section("cmd"); | |
562 | jf.dump_string("prefix", "config-key put"); | |
563 | jf.dump_string("key", global_key); | |
564 | jf.dump_string("val", val); | |
565 | jf.close_section(); | |
566 | jf.flush(cmd_json); | |
567 | ||
568 | set_cmd.run(&monc, cmd_json.str()); | |
569 | } | |
570 | set_cmd.wait(); | |
571 | ||
572 | if (set_cmd.r != 0) { | |
573 | // config-key put will fail if mgr's auth key has insufficient | |
574 | // permission to set config keys | |
575 | // FIXME: should this somehow raise an exception back into Python land? | |
576 | dout(0) << "`config-key put " << global_key << " " << val << "` failed: " | |
577 | << cpp_strerror(set_cmd.r) << dendl; | |
578 | dout(0) << "mon returned " << set_cmd.r << ": " << set_cmd.outs << dendl; | |
579 | } | |
580 | } | |
581 | ||
582 | std::vector<ModuleCommand> PyModules::get_commands() | |
583 | { | |
584 | Mutex::Locker l(lock); | |
585 | ||
586 | std::vector<ModuleCommand> result; | |
587 | for (auto& i : modules) { | |
588 | auto module = i.second.get(); | |
589 | auto mod_commands = module->get_commands(); | |
590 | for (auto j : mod_commands) { | |
591 | result.push_back(j); | |
592 | } | |
593 | } | |
594 | ||
595 | return result; | |
596 | } | |
597 | ||
598 | void PyModules::insert_config(const std::map<std::string, | |
599 | std::string> &new_config) | |
600 | { | |
601 | Mutex::Locker l(lock); | |
602 | ||
603 | dout(4) << "Loaded " << new_config.size() << " config settings" << dendl; | |
604 | config_cache = new_config; | |
605 | } | |
606 | ||
607 | void PyModules::log(const std::string &handle, | |
608 | int level, const std::string &record) | |
609 | { | |
610 | #undef dout_prefix | |
611 | #define dout_prefix *_dout << "mgr[" << handle << "] " | |
612 | dout(level) << record << dendl; | |
613 | #undef dout_prefix | |
614 | #define dout_prefix *_dout << "mgr " << __func__ << " " | |
615 | } | |
616 | ||
617 | PyObject* PyModules::get_counter_python( | |
618 | const std::string &handle, | |
619 | entity_type_t svc_type, | |
620 | const std::string &svc_id, | |
621 | const std::string &path) | |
622 | { | |
623 | PyThreadState *tstate = PyEval_SaveThread(); | |
624 | Mutex::Locker l(lock); | |
625 | PyEval_RestoreThread(tstate); | |
626 | ||
627 | PyFormatter f; | |
628 | f.open_array_section(path.c_str()); | |
629 | ||
630 | auto metadata = daemon_state.get(DaemonKey(svc_type, svc_id)); | |
631 | ||
632 | // FIXME: this is unsafe, I need to either be inside DaemonStateIndex's | |
633 | // lock or put a lock on individual DaemonStates | |
634 | if (metadata) { | |
635 | if (metadata->perf_counters.instances.count(path)) { | |
636 | auto counter_instance = metadata->perf_counters.instances.at(path); | |
637 | const auto &data = counter_instance.get_data(); | |
638 | for (const auto &datapoint : data) { | |
639 | f.open_array_section("datapoint"); | |
640 | f.dump_unsigned("t", datapoint.t.sec()); | |
641 | f.dump_unsigned("v", datapoint.v); | |
642 | f.close_section(); | |
643 | ||
644 | } | |
645 | } else { | |
646 | dout(4) << "Missing counter: '" << path << "' (" | |
647 | << ceph_entity_type_name(svc_type) << "." | |
648 | << svc_id << ")" << dendl; | |
649 | dout(20) << "Paths are:" << dendl; | |
650 | for (const auto &i : metadata->perf_counters.instances) { | |
651 | dout(20) << i.first << dendl; | |
652 | } | |
653 | } | |
654 | } else { | |
655 | dout(4) << "No daemon state for " | |
656 | << ceph_entity_type_name(svc_type) << "." | |
657 | << svc_id << ")" << dendl; | |
658 | } | |
659 | f.close_section(); | |
660 | return f.get(); | |
661 | } | |
662 | ||
663 | PyObject *PyModules::get_context() | |
664 | { | |
665 | PyThreadState *tstate = PyEval_SaveThread(); | |
666 | Mutex::Locker l(lock); | |
667 | PyEval_RestoreThread(tstate); | |
668 | ||
669 | // Construct a capsule containing ceph context. | |
670 | // Not incrementing/decrementing ref count on the context because | |
671 | // it's the global one and it has process lifetime. | |
672 | auto capsule = PyCapsule_New(g_ceph_context, nullptr, nullptr); | |
673 | return capsule; | |
674 | } | |
675 |