bdff16a95f53e1de0d213c6a1c3cbbdd4eb74404
1 /**
2 * collectd - src/varnish.c
3 * Copyright (C) 2010 Jérôme Renard
4 * Copyright (C) 2010 Marc Fournier
5 * Copyright (C) 2010-2012 Florian Forster
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; only version 2 of the License is applicable.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 * Authors:
21 * Jérôme Renard <jerome.renard at gmail.com>
22 * Marc Fournier <marc.fournier at camptocamp.com>
23 * Florian octo Forster <octo at collectd.org>
24 **/
26 #include "collectd.h"
27 #include "common.h"
28 #include "plugin.h"
29 #include "configfile.h"
31 #if HAVE_VARNISH_V4
32 #include <varnish/vapi/vsm.h>
33 #include <varnish/vapi/vsc.h>
34 typedef struct VSC_C_main c_varnish_stats_t;
35 #endif
37 #if HAVE_VARNISH_V3
38 #include <varnish/varnishapi.h>
39 #include <varnish/vsc.h>
40 typedef struct VSC_C_main c_varnish_stats_t;
41 #endif
43 #if HAVE_VARNISH_V2
44 #include <varnish/varnishapi.h>
45 typedef struct varnish_stats c_varnish_stats_t;
46 #endif
48 /* {{{ user_config_s */
49 struct user_config_s {
50 char *instance;
52 _Bool collect_cache;
53 _Bool collect_connections;
54 _Bool collect_esi;
55 _Bool collect_backend;
56 #ifdef HAVE_VARNISH_V3
57 _Bool collect_dirdns;
58 #endif
59 _Bool collect_fetch;
60 _Bool collect_hcb;
61 _Bool collect_objects;
62 #if HAVE_VARNISH_V2
63 _Bool collect_purge;
64 #else
65 _Bool collect_ban;
66 #endif
67 _Bool collect_session;
68 _Bool collect_shm;
69 _Bool collect_sms;
70 #if HAVE_VARNISH_V2
71 _Bool collect_sm;
72 _Bool collect_sma;
73 #endif
74 _Bool collect_struct;
75 _Bool collect_totals;
76 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
77 _Bool collect_uptime;
78 #endif
79 _Bool collect_vcl;
80 _Bool collect_workers;
81 };
82 typedef struct user_config_s user_config_t; /* }}} */
84 static _Bool have_instance = 0;
86 static int varnish_submit (const char *plugin_instance, /* {{{ */
87 const char *category, const char *type, const char *type_instance, value_t value)
88 {
89 value_list_t vl = VALUE_LIST_INIT;
91 vl.values = &value;
92 vl.values_len = 1;
94 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
96 sstrncpy (vl.plugin, "varnish", sizeof (vl.plugin));
98 if (plugin_instance == NULL)
99 plugin_instance = "default";
101 ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
102 "%s-%s", plugin_instance, category);
104 sstrncpy (vl.type, type, sizeof (vl.type));
106 if (type_instance != NULL)
107 sstrncpy (vl.type_instance, type_instance,
108 sizeof (vl.type_instance));
110 return (plugin_dispatch_values (&vl));
111 } /* }}} int varnish_submit */
113 static int varnish_submit_gauge (const char *plugin_instance, /* {{{ */
114 const char *category, const char *type, const char *type_instance,
115 uint64_t gauge_value)
116 {
117 value_t value;
119 value.gauge = (gauge_t) gauge_value;
121 return (varnish_submit (plugin_instance, category, type, type_instance, value));
122 } /* }}} int varnish_submit_gauge */
124 static int varnish_submit_derive (const char *plugin_instance, /* {{{ */
125 const char *category, const char *type, const char *type_instance,
126 uint64_t derive_value)
127 {
128 value_t value;
130 value.derive = (derive_t) derive_value;
132 return (varnish_submit (plugin_instance, category, type, type_instance, value));
133 } /* }}} int varnish_submit_derive */
135 static void varnish_monitor (const user_config_t *conf, /* {{{ */
136 const c_varnish_stats_t *stats)
137 {
138 if (conf->collect_cache)
139 {
140 /* Cache hits */
141 varnish_submit_derive (conf->instance, "cache", "cache_result", "hit", stats->cache_hit);
142 /* Cache misses */
143 varnish_submit_derive (conf->instance, "cache", "cache_result", "miss", stats->cache_miss);
144 /* Cache hits for pass */
145 varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", stats->cache_hitpass);
146 }
148 if (conf->collect_connections)
149 {
150 #ifndef HAVE_VARNISH_V4
151 /* Client connections accepted */
152 varnish_submit_derive (conf->instance, "connections", "connections", "accepted", stats->client_conn);
153 /* Connection dropped, no sess */
154 varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , stats->client_drop);
155 #endif
156 /* Client requests received */
157 varnish_submit_derive (conf->instance, "connections", "connections", "received", stats->client_req);
158 }
160 #ifdef HAVE_VARNISH_V3
161 if (conf->collect_dirdns)
162 {
163 /* DNS director lookups */
164 varnish_submit_derive (conf->instance, "dirdns", "cache_operation", "lookups", stats->dir_dns_lookups);
165 /* DNS director failed lookups */
166 varnish_submit_derive (conf->instance, "dirdns", "cache_result", "failed", stats->dir_dns_failed);
167 /* DNS director cached lookups hit */
168 varnish_submit_derive (conf->instance, "dirdns", "cache_result", "hits", stats->dir_dns_hit);
169 /* DNS director full dnscache */
170 varnish_submit_derive (conf->instance, "dirdns", "cache_result", "cache_full", stats->dir_dns_cache_full);
171 }
172 #endif
174 if (conf->collect_esi)
175 {
176 /* ESI parse errors (unlock) */
177 varnish_submit_derive (conf->instance, "esi", "total_operations", "error", stats->esi_errors);
178 #if HAVE_VARNISH_V2
179 /* Objects ESI parsed (unlock) */
180 varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed", stats->esi_parse);
181 #else
182 /* ESI parse warnings (unlock) */
183 varnish_submit_derive (conf->instance, "esi", "total_operations", "warning", stats->esi_warnings);
184 #endif
185 }
187 if (conf->collect_backend)
188 {
189 /* Backend conn. success */
190 varnish_submit_derive (conf->instance, "backend", "connections", "success" , stats->backend_conn);
191 /* Backend conn. not attempted */
192 varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", stats->backend_unhealthy);
193 /* Backend conn. too many */
194 varnish_submit_derive (conf->instance, "backend", "connections", "too-many" , stats->backend_busy);
195 /* Backend conn. failures */
196 varnish_submit_derive (conf->instance, "backend", "connections", "failures" , stats->backend_fail);
197 /* Backend conn. reuses */
198 varnish_submit_derive (conf->instance, "backend", "connections", "reuses" , stats->backend_reuse);
199 /* Backend conn. was closed */
200 varnish_submit_derive (conf->instance, "backend", "connections", "was-closed" , stats->backend_toolate);
201 /* Backend conn. recycles */
202 varnish_submit_derive (conf->instance, "backend", "connections", "recycled" , stats->backend_recycle);
203 #if HAVE_VARNISH_V2
204 /* Backend conn. unused */
205 varnish_submit_derive (conf->instance, "backend", "connections", "unused" , stats->backend_unused);
206 #else
207 /* Backend conn. retry */
208 varnish_submit_derive (conf->instance, "backend", "connections", "retries" , stats->backend_retry);
209 #endif
210 /* Backend requests mades */
211 varnish_submit_derive (conf->instance, "backend", "http_requests", "requests" , stats->backend_req);
212 /* N backends */
213 varnish_submit_gauge (conf->instance, "backend", "backends", "n_backends" , stats->n_backend);
214 }
216 if (conf->collect_fetch)
217 {
218 /* Fetch head */
219 varnish_submit_derive (conf->instance, "fetch", "http_requests", "head" , stats->fetch_head);
220 /* Fetch with length */
221 varnish_submit_derive (conf->instance, "fetch", "http_requests", "length" , stats->fetch_length);
222 /* Fetch chunked */
223 varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked" , stats->fetch_chunked);
224 /* Fetch EOF */
225 varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof" , stats->fetch_eof);
226 /* Fetch bad headers */
227 varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", stats->fetch_bad);
228 /* Fetch wanted close */
229 varnish_submit_derive (conf->instance, "fetch", "http_requests", "close" , stats->fetch_close);
230 /* Fetch pre HTTP/1.1 closed */
231 varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp" , stats->fetch_oldhttp);
232 /* Fetch zero len */
233 varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero" , stats->fetch_zero);
234 /* Fetch failed */
235 varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed" , stats->fetch_failed);
236 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
237 /* Fetch no body (1xx) */
238 varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_1xx", stats->fetch_1xx);
239 /* Fetch no body (204) */
240 varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_204", stats->fetch_204);
241 /* Fetch no body (304) */
242 varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_304", stats->fetch_304);
243 #endif
244 }
246 if (conf->collect_hcb)
247 {
248 /* HCB Lookups without lock */
249 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", stats->hcb_nolock);
250 /* HCB Lookups with lock */
251 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock", stats->hcb_lock);
252 /* HCB Inserts */
253 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert", stats->hcb_insert);
254 }
256 if (conf->collect_objects)
257 {
258 /* N expired objects */
259 varnish_submit_derive (conf->instance, "objects", "total_objects", "expired", stats->n_expired);
260 /* N LRU nuked objects */
261 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked", stats->n_lru_nuked);
262 #if HAVE_VARNISH_V2
263 /* N LRU saved objects */
264 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved", stats->n_lru_saved);
265 #endif
266 /* N LRU moved objects */
267 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved", stats->n_lru_moved);
268 #if HAVE_VARNISH_V2
269 /* N objects on deathrow */
270 varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow", stats->n_deathrow);
271 #endif
272 /* HTTP header overflows */
273 varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow", stats->losthdr);
274 #if !HAVE_VARNISH_V4
275 /* Objects sent with sendfile */
276 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile", stats->n_objsendfile);
277 /* Objects sent with write */
278 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write", stats->n_objwrite);
279 /* Objects overflowing workspace */
280 varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", stats->n_objoverflow);
281 #endif
282 }
284 #if HAVE_VARNISH_V2
285 if (conf->collect_purge)
286 {
287 /* N total active purges */
288 varnish_submit_derive (conf->instance, "purge", "total_operations", "total", stats->n_purge);
289 /* N new purges added */
290 varnish_submit_derive (conf->instance, "purge", "total_operations", "added", stats->n_purge_add);
291 /* N old purges deleted */
292 varnish_submit_derive (conf->instance, "purge", "total_operations", "deleted", stats->n_purge_retire);
293 /* N objects tested */
294 varnish_submit_derive (conf->instance, "purge", "total_operations", "objects_tested", stats->n_purge_obj_test);
295 /* N regexps tested against */
296 varnish_submit_derive (conf->instance, "purge", "total_operations", "regexps_tested", stats->n_purge_re_test);
297 /* N duplicate purges removed */
298 varnish_submit_derive (conf->instance, "purge", "total_operations", "duplicate", stats->n_purge_dups);
299 }
300 #endif
301 #if HAVE_VARNISH_V3
302 if (conf->collect_ban)
303 {
304 /* N total active bans */
305 varnish_submit_derive (conf->instance, "ban", "total_operations", "total", stats->n_ban);
306 /* N new bans added */
307 varnish_submit_derive (conf->instance, "ban", "total_operations", "added", stats->n_ban_add);
308 /* N old bans deleted */
309 varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted", stats->n_ban_retire);
310 /* N objects tested */
311 varnish_submit_derive (conf->instance, "ban", "total_operations", "objects_tested", stats->n_ban_obj_test);
312 /* N regexps tested against */
313 varnish_submit_derive (conf->instance, "ban", "total_operations", "regexps_tested", stats->n_ban_re_test);
314 /* N duplicate bans removed */
315 varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate", stats->n_ban_dups);
316 }
317 #endif
318 #if HAVE_VARNISH_V4
319 if (conf->collect_ban)
320 {
321 /* N total active bans */
322 varnish_submit_derive (conf->instance, "ban", "total_operations", "total", stats->bans);
323 /* N new bans added */
324 varnish_submit_derive (conf->instance, "ban", "total_operations", "added", stats->bans_added);
325 /* N bans using obj */
326 varnish_submit_derive (conf->instance, "ban", "total_operations", "obj", stats->bans_obj);
327 /* N bans using req */
328 varnish_submit_derive (conf->instance, "ban", "total_operations", "req", stats->bans_req);
329 /* N new bans completed */
330 varnish_submit_derive (conf->instance, "ban", "total_operations", "completed", stats->bans_completed);
331 /* N old bans deleted */
332 varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted", stats->bans_deleted);
333 /* N objects tested */
334 varnish_submit_derive (conf->instance, "ban", "total_operations", "tested", stats->bans_tested);
335 /* N duplicate bans removed */
336 varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate", stats->bans_dups);
337 }
338 #endif
340 if (conf->collect_session)
341 {
342 /* Session Closed */
343 varnish_submit_derive (conf->instance, "session", "total_operations", "closed", stats->sess_closed);
344 /* Session Pipeline */
345 varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline", stats->sess_pipeline);
346 /* Session Read Ahead */
347 varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", stats->sess_readahead);
348 #if HAVE_VARNISH_V4
349 /* Sessions accepted */
350 varnish_submit_derive (conf->instance, "session", "total_operations", "accepted", stats->sess_conn);
351 /* Sessions dropped for thread */
352 varnish_submit_derive (conf->instance, "session", "total_operations", "dropped", stats->sess_drop);
353 /* Sessions accept failure */
354 varnish_submit_derive (conf->instance, "session", "total_operations", "failed", stats->sess_fail);
355 /* Sessions pipe overflow */
356 varnish_submit_derive (conf->instance, "session", "total_operations", "overflow", stats->sess_pipe_overflow);
357 /* Sessions queued for thread */
358 varnish_submit_derive (conf->instance, "session", "total_operations", "queued", stats->sess_queued);
359 #else
360 /* Session Linger */
361 varnish_submit_derive (conf->instance, "session", "total_operations", "linger", stats->sess_linger);
362 #endif
363 /* Session herd */
364 varnish_submit_derive (conf->instance, "session", "total_operations", "herd", stats->sess_herd);
365 }
367 if (conf->collect_shm)
368 {
369 /* SHM records */
370 varnish_submit_derive (conf->instance, "shm", "total_operations", "records" , stats->shm_records);
371 /* SHM writes */
372 varnish_submit_derive (conf->instance, "shm", "total_operations", "writes" , stats->shm_writes);
373 /* SHM flushes due to overflow */
374 varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes" , stats->shm_flushes);
375 /* SHM MTX contention */
376 varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", stats->shm_cont);
377 /* SHM cycles through buffer */
378 varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles" , stats->shm_cycles);
379 }
381 #if HAVE_VARNISH_V2
382 if (conf->collect_sm)
383 {
384 /* allocator requests */
385 varnish_submit_derive (conf->instance, "sm", "total_requests", "nreq", stats->sm_nreq);
386 /* outstanding allocations */
387 varnish_submit_gauge (conf->instance, "sm", "requests", "outstanding", stats->sm_nobj);
388 /* bytes allocated */
389 varnish_submit_derive (conf->instance, "sm", "total_bytes", "allocated", stats->sm_balloc);
390 /* bytes free */
391 varnish_submit_derive (conf->instance, "sm", "total_bytes", "free", stats->sm_bfree);
392 }
394 if (conf->collect_sma)
395 {
396 /* SMA allocator requests */
397 varnish_submit_derive (conf->instance, "sma", "total_requests", "nreq", stats->sma_nreq);
398 /* SMA outstanding allocations */
399 varnish_submit_gauge (conf->instance, "sma", "requests", "outstanding", stats->sma_nobj);
400 /* SMA outstanding bytes */
401 varnish_submit_gauge (conf->instance, "sma", "bytes", "outstanding", stats->sma_nbytes);
402 /* SMA bytes allocated */
403 varnish_submit_derive (conf->instance, "sma", "total_bytes", "allocated", stats->sma_balloc);
404 /* SMA bytes free */
405 varnish_submit_derive (conf->instance, "sma", "total_bytes", "free" , stats->sma_bfree);
406 }
407 #endif
409 if (conf->collect_sms)
410 {
411 /* SMS allocator requests */
412 varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", stats->sms_nreq);
413 /* SMS outstanding allocations */
414 varnish_submit_gauge (conf->instance, "sms", "requests", "outstanding", stats->sms_nobj);
415 /* SMS outstanding bytes */
416 varnish_submit_gauge (conf->instance, "sms", "bytes", "outstanding", stats->sms_nbytes);
417 /* SMS bytes allocated */
418 varnish_submit_derive (conf->instance, "sms", "total_bytes", "allocated", stats->sms_balloc);
419 /* SMS bytes freed */
420 varnish_submit_derive (conf->instance, "sms", "total_bytes", "free", stats->sms_bfree);
421 }
423 if (conf->collect_struct)
424 {
425 #if !HAVE_VARNISH_V4
426 /* N struct sess_mem */
427 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem", stats->n_sess_mem);
428 /* N struct sess */
429 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess", stats->n_sess);
430 #endif
431 /* N struct object */
432 varnish_submit_gauge (conf->instance, "struct", "objects", "object", stats->n_object);
433 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
434 /* N unresurrected objects */
435 varnish_submit_gauge (conf->instance, "struct", "objects", "vampireobject", stats->n_vampireobject);
436 /* N struct objectcore */
437 varnish_submit_gauge (conf->instance, "struct", "objects", "objectcore", stats->n_objectcore);
438 /* N struct waitinglist */
439 varnish_submit_gauge (conf->instance, "struct", "objects", "waitinglist", stats->n_waitinglist);
440 #endif
441 /* N struct objecthead */
442 varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead", stats->n_objecthead);
443 #ifdef HAVE_VARNISH_V2
444 /* N struct smf */
445 varnish_submit_gauge (conf->instance, "struct", "objects", "smf", stats->n_smf);
446 /* N small free smf */
447 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag", stats->n_smf_frag);
448 /* N large free smf */
449 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large", stats->n_smf_large);
450 /* N struct vbe_conn */
451 varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn", stats->n_vbe_conn);
452 #endif
453 }
455 if (conf->collect_totals)
456 {
457 /* Total Sessions */
458 varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions", stats->s_sess);
459 /* Total Requests */
460 varnish_submit_derive (conf->instance, "totals", "total_requests", "requests", stats->s_req);
461 /* Total pipe */
462 varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe", stats->s_pipe);
463 /* Total pass */
464 varnish_submit_derive (conf->instance, "totals", "total_operations", "pass", stats->s_pass);
465 /* Total fetch */
466 varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", stats->s_fetch);
467 #if HAVE_VARNISH_V4
468 /* Total synth */
469 varnish_submit_derive (conf->instance, "totals", "total_bytes", "synth", stats->s_synth);
470 /* Request header bytes */
471 varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_header", stats->s_req_hdrbytes);
472 /* Request body byte */
473 varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_body", stats->s_req_bodybytes);
474 /* Response header bytes */
475 varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_header", stats->s_resp_hdrbytes);
476 /* Response body byte */
477 varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_body", stats->s_resp_bodybytes);
478 /* Pipe request header bytes */
479 varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_header", stats->s_pipe_hdrbytes);
480 /* Piped bytes from client */
481 varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_in", stats->s_pipe_in);
482 /* Piped bytes to client */
483 varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_out", stats->s_pipe_out);
484 #else
485 /* Total header bytes */
486 varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", stats->s_hdrbytes);
487 /* Total body byte */
488 varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes", stats->s_bodybytes);
489 #endif
490 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
491 /* Gzip operations */
492 varnish_submit_derive (conf->instance, "totals", "total_operations", "gzip", stats->n_gzip);
493 /* Gunzip operations */
494 varnish_submit_derive (conf->instance, "totals", "total_operations", "gunzip", stats->n_gunzip);
495 #endif
496 }
498 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
499 if (conf->collect_uptime)
500 {
501 /* Client uptime */
502 varnish_submit_gauge (conf->instance, "uptime", "uptime", "client_uptime", stats->uptime);
503 }
504 #endif
506 if (conf->collect_vcl)
507 {
508 /* N vcl total */
509 varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl", stats->n_vcl);
510 /* N vcl available */
511 varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl", stats->n_vcl_avail);
512 /* N vcl discarded */
513 varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", stats->n_vcl_discard);
514 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
515 /* Loaded VMODs */
516 varnish_submit_gauge (conf->instance, "vcl", "objects", "vmod", stats->vmods);
517 #endif
518 }
520 if (conf->collect_workers)
521 {
522 #ifdef HAVE_VARNISH_V4
523 /* total number of threads */
524 varnish_submit_gauge (conf->instance, "workers", "threads", "worker", stats->threads);
525 /* threads created */
526 varnish_submit_derive (conf->instance, "workers", "total_threads", "created", stats->threads_created);
527 /* thread creation failed */
528 varnish_submit_derive (conf->instance, "workers", "total_threads", "failed", stats->threads_failed);
529 /* threads hit max */
530 varnish_submit_derive (conf->instance, "workers", "total_threads", "limited", stats->threads_limited);
531 /* threads destroyed */
532 varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped", stats->threads_destroyed);
533 /* length of session queue */
534 varnish_submit_derive (conf->instance, "workers", "queue_length", "threads", stats->thread_queue_len);
535 #else
536 /* worker threads */
537 varnish_submit_gauge (conf->instance, "workers", "threads", "worker", stats->n_wrk);
538 /* worker threads created */
539 varnish_submit_derive (conf->instance, "workers", "total_threads", "created", stats->n_wrk_create);
540 /* worker threads not created */
541 varnish_submit_derive (conf->instance, "workers", "total_threads", "failed", stats->n_wrk_failed);
542 /* worker threads limited */
543 varnish_submit_derive (conf->instance, "workers", "total_threads", "limited", stats->n_wrk_max);
544 /* dropped work requests */
545 varnish_submit_derive (conf->instance, "workers", "total_requests", "dropped", stats->n_wrk_drop);
546 #ifdef HAVE_VARNISH_V2
547 /* queued work requests */
548 varnish_submit_derive (conf->instance, "workers", "total_requests", "queued", stats->n_wrk_queue);
549 /* overflowed work requests */
550 varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed", stats->n_wrk_overflow);
551 #else /* HAVE_VARNISH_V3 */
552 /* queued work requests */
553 varnish_submit_derive (conf->instance, "workers", "total_requests", "queued", stats->n_wrk_queued);
554 /* work request queue length */
555 varnish_submit_derive (conf->instance, "workers", "total_requests", "queue_length", stats->n_wrk_lqueue);
556 #endif
557 #endif
558 }
559 } /* }}} void varnish_monitor */
561 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
562 static int varnish_read (user_data_t *ud) /* {{{ */
563 {
564 struct VSM_data *vd;
565 const c_varnish_stats_t *stats;
567 user_config_t *conf;
569 if ((ud == NULL) || (ud->data == NULL))
570 return (EINVAL);
572 conf = ud->data;
574 vd = VSM_New();
575 #if HAVE_VARNISH_V3
576 VSC_Setup(vd);
577 #endif
579 if (conf->instance != NULL)
580 {
581 int status;
583 status = VSM_n_Arg (vd, conf->instance);
584 if (status < 0)
585 {
586 ERROR ("varnish plugin: VSM_n_Arg (\"%s\") failed "
587 "with status %i.",
588 conf->instance, status);
589 return (-1);
590 }
591 }
593 #if HAVE_VARNISH_V3
594 if (VSC_Open (vd, /* diag = */ 1))
595 #else /* if HAVE_VARNISH_V4 */
596 if (VSM_Open (vd))
597 #endif
598 {
599 ERROR ("varnish plugin: Unable to load statistics.");
601 return (-1);
602 }
604 #if HAVE_VARNISH_V3
605 stats = VSC_Main(vd);
606 #else /* if HAVE_VARNISH_V4 */
607 stats = VSC_Main(vd, NULL);
608 #endif
610 varnish_monitor (conf, stats);
611 VSM_Close (vd);
613 return (0);
614 } /* }}} */
615 #else /* if HAVE_VARNISH_V2 */
616 static int varnish_read (user_data_t *ud) /* {{{ */
617 {
618 const c_varnish_stats_t *stats;
620 user_config_t *conf;
622 if ((ud == NULL) || (ud->data == NULL))
623 return (EINVAL);
625 conf = ud->data;
627 stats = VSL_OpenStats (conf->instance);
628 if (stats == NULL)
629 {
630 ERROR ("Varnish plugin : unable to load statistics");
632 return (-1);
633 }
635 varnish_monitor (conf, stats);
637 return (0);
638 } /* }}} */
639 #endif
641 static void varnish_config_free (void *ptr) /* {{{ */
642 {
643 user_config_t *conf = ptr;
645 if (conf == NULL)
646 return;
648 sfree (conf->instance);
649 sfree (conf);
650 } /* }}} */
652 static int varnish_config_apply_default (user_config_t *conf) /* {{{ */
653 {
654 if (conf == NULL)
655 return (EINVAL);
657 conf->collect_backend = 1;
658 conf->collect_cache = 1;
659 conf->collect_connections = 1;
660 #ifdef HAVE_VARNISH_V3
661 conf->collect_dirdns = 0;
662 #endif
663 conf->collect_esi = 0;
664 conf->collect_fetch = 0;
665 conf->collect_hcb = 0;
666 conf->collect_objects = 0;
667 #if HAVE_VARNISH_V2
668 conf->collect_purge = 0;
669 #else
670 conf->collect_ban = 0;
671 #endif
672 conf->collect_session = 0;
673 conf->collect_shm = 1;
674 #if HAVE_VARNISH_V2
675 conf->collect_sm = 0;
676 conf->collect_sma = 0;
677 #endif
678 conf->collect_sms = 0;
679 conf->collect_struct = 0;
680 conf->collect_totals = 0;
681 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
682 conf->collect_uptime = 0;
683 #endif
684 conf->collect_vcl = 0;
685 conf->collect_workers = 0;
687 return (0);
688 } /* }}} int varnish_config_apply_default */
690 static int varnish_init (void) /* {{{ */
691 {
692 user_config_t *conf;
693 user_data_t ud;
695 if (have_instance)
696 return (0);
698 conf = malloc (sizeof (*conf));
699 if (conf == NULL)
700 return (ENOMEM);
701 memset (conf, 0, sizeof (*conf));
703 /* Default settings: */
704 conf->instance = NULL;
706 varnish_config_apply_default (conf);
708 ud.data = conf;
709 ud.free_func = varnish_config_free;
711 plugin_register_complex_read (/* group = */ "varnish",
712 /* name = */ "varnish/localhost",
713 /* callback = */ varnish_read,
714 /* interval = */ NULL,
715 /* user data = */ &ud);
717 return (0);
718 } /* }}} int varnish_init */
720 static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
721 {
722 user_config_t *conf;
723 user_data_t ud;
724 char callback_name[DATA_MAX_NAME_LEN];
725 int i;
727 conf = malloc (sizeof (*conf));
728 if (conf == NULL)
729 return (ENOMEM);
730 memset (conf, 0, sizeof (*conf));
731 conf->instance = NULL;
733 varnish_config_apply_default (conf);
735 if (ci->values_num == 1)
736 {
737 int status;
739 status = cf_util_get_string (ci, &conf->instance);
740 if (status != 0)
741 {
742 sfree (conf);
743 return (status);
744 }
745 assert (conf->instance != NULL);
747 if (strcmp ("localhost", conf->instance) == 0)
748 {
749 sfree (conf->instance);
750 conf->instance = NULL;
751 }
752 }
753 else if (ci->values_num > 1)
754 {
755 WARNING ("Varnish plugin: \"Instance\" blocks accept only "
756 "one argument.");
757 return (EINVAL);
758 }
760 for (i = 0; i < ci->children_num; i++)
761 {
762 oconfig_item_t *child = ci->children + i;
764 if (strcasecmp ("CollectCache", child->key) == 0)
765 cf_util_get_boolean (child, &conf->collect_cache);
766 else if (strcasecmp ("CollectConnections", child->key) == 0)
767 cf_util_get_boolean (child, &conf->collect_connections);
768 else if (strcasecmp ("CollectESI", child->key) == 0)
769 cf_util_get_boolean (child, &conf->collect_esi);
770 #ifdef HAVE_VARNISH_V3
771 else if (strcasecmp ("CollectDirectorDNS", child->key) == 0)
772 cf_util_get_boolean (child, &conf->collect_dirdns);
773 #endif
774 else if (strcasecmp ("CollectBackend", child->key) == 0)
775 cf_util_get_boolean (child, &conf->collect_backend);
776 else if (strcasecmp ("CollectFetch", child->key) == 0)
777 cf_util_get_boolean (child, &conf->collect_fetch);
778 else if (strcasecmp ("CollectHCB", child->key) == 0)
779 cf_util_get_boolean (child, &conf->collect_hcb);
780 else if (strcasecmp ("CollectObjects", child->key) == 0)
781 cf_util_get_boolean (child, &conf->collect_objects);
782 #if HAVE_VARNISH_V2
783 else if (strcasecmp ("CollectPurge", child->key) == 0)
784 cf_util_get_boolean (child, &conf->collect_purge);
785 #else
786 else if (strcasecmp ("CollectBan", child->key) == 0)
787 cf_util_get_boolean (child, &conf->collect_ban);
788 #endif
789 else if (strcasecmp ("CollectSession", child->key) == 0)
790 cf_util_get_boolean (child, &conf->collect_session);
791 else if (strcasecmp ("CollectSHM", child->key) == 0)
792 cf_util_get_boolean (child, &conf->collect_shm);
793 else if (strcasecmp ("CollectSMS", child->key) == 0)
794 cf_util_get_boolean (child, &conf->collect_sms);
795 #if HAVE_VARNISH_V2
796 else if (strcasecmp ("CollectSMA", child->key) == 0)
797 cf_util_get_boolean (child, &conf->collect_sma);
798 else if (strcasecmp ("CollectSM", child->key) == 0)
799 cf_util_get_boolean (child, &conf->collect_sm);
800 #endif
801 else if (strcasecmp ("CollectStruct", child->key) == 0)
802 cf_util_get_boolean (child, &conf->collect_struct);
803 else if (strcasecmp ("CollectTotals", child->key) == 0)
804 cf_util_get_boolean (child, &conf->collect_totals);
805 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
806 else if (strcasecmp ("CollectUptime", child->key) == 0)
807 cf_util_get_boolean (child, &conf->collect_uptime);
808 #endif
809 else if (strcasecmp ("CollectVCL", child->key) == 0)
810 cf_util_get_boolean (child, &conf->collect_vcl);
811 else if (strcasecmp ("CollectWorkers", child->key) == 0)
812 cf_util_get_boolean (child, &conf->collect_workers);
813 else
814 {
815 WARNING ("Varnish plugin: Ignoring unknown "
816 "configuration option: \"%s\". Did "
817 "you forget to add an <Instance /> "
818 "block around the configuration?",
819 child->key);
820 }
821 }
823 if (!conf->collect_cache
824 && !conf->collect_connections
825 && !conf->collect_esi
826 && !conf->collect_backend
827 #ifdef HAVE_VARNISH_V3
828 && !conf->collect_dirdns
829 #endif
830 && !conf->collect_fetch
831 && !conf->collect_hcb
832 && !conf->collect_objects
833 #if HAVE_VARNISH_V2
834 && !conf->collect_purge
835 #else
836 && !conf->collect_ban
837 #endif
838 && !conf->collect_session
839 && !conf->collect_shm
840 && !conf->collect_sms
841 #if HAVE_VARNISH_V2
842 && !conf->collect_sma
843 && !conf->collect_sm
844 #endif
845 && !conf->collect_struct
846 && !conf->collect_totals
847 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
848 && !conf->collect_uptime
849 #endif
850 && !conf->collect_vcl
851 && !conf->collect_workers)
852 {
853 WARNING ("Varnish plugin: No metric has been configured for "
854 "instance \"%s\". Disabling this instance.",
855 (conf->instance == NULL) ? "localhost" : conf->instance);
856 return (EINVAL);
857 }
859 ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
860 (conf->instance == NULL) ? "localhost" : conf->instance);
862 ud.data = conf;
863 ud.free_func = varnish_config_free;
865 plugin_register_complex_read (/* group = */ "varnish",
866 /* name = */ callback_name,
867 /* callback = */ varnish_read,
868 /* interval = */ NULL,
869 /* user data = */ &ud);
871 have_instance = 1;
873 return (0);
874 } /* }}} int varnish_config_instance */
876 static int varnish_config (oconfig_item_t *ci) /* {{{ */
877 {
878 int i;
880 for (i = 0; i < ci->children_num; i++)
881 {
882 oconfig_item_t *child = ci->children + i;
884 if (strcasecmp ("Instance", child->key) == 0)
885 varnish_config_instance (child);
886 else
887 {
888 WARNING ("Varnish plugin: Ignoring unknown "
889 "configuration option: \"%s\"",
890 child->key);
891 }
892 }
894 return (0);
895 } /* }}} int varnish_config */
897 void module_register (void) /* {{{ */
898 {
899 plugin_register_complex_config ("varnish", varnish_config);
900 plugin_register_init ("varnish", varnish_init);
901 } /* }}} */
903 /* vim: set sw=8 noet fdm=marker : */