1 /**
2 * collectd - src/mysql.c
3 * Copyright (C) 2006-2009 Florian octo Forster
4 * Copyright (C) 2008 Mirko Buffoni
5 * Copyright (C) 2009 Doug MacEachern
6 * Copyright (C) 2009 Sebastian tokkee Harl
7 * Copyright (C) 2009 Rodolphe QuiƩdeville
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; only version 2 of the License is applicable.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 * Authors:
23 * Florian octo Forster <octo at verplant.org>
24 * Mirko Buffoni <briareos at eswat.org>
25 * Doug MacEachern <dougm at hyperic.com>
26 * Sebastian tokkee Harl <sh at tokkee.org>
27 * Rodolphe QuiƩdeville <rquiedeville at bearstech.com>
28 **/
30 #include "collectd.h"
31 #include "common.h"
32 #include "plugin.h"
33 #include "configfile.h"
35 #ifdef HAVE_MYSQL_H
36 #include <mysql.h>
37 #elif defined(HAVE_MYSQL_MYSQL_H)
38 #include <mysql/mysql.h>
39 #endif
41 /* TODO: Understand `Select_*' and possibly do that stuff as well.. */
43 struct mysql_database_s /* {{{ */
44 {
45 /* instance == NULL => legacy mode */
46 char *instance;
47 char *host;
48 char *user;
49 char *pass;
50 char *database;
51 char *socket;
52 int port;
54 int master_stats;
55 int slave_stats;
57 int slave_notif;
58 int slave_io_running;
59 int slave_sql_running;
61 MYSQL *con;
62 int state;
63 };
64 typedef struct mysql_database_s mysql_database_t; /* }}} */
66 static int mysql_read (user_data_t *ud);
68 static void mysql_database_free (void *arg) /* {{{ */
69 {
70 mysql_database_t *db;
72 DEBUG ("mysql plugin: mysql_database_free (arg = %p);", arg);
74 db = (mysql_database_t *) arg;
76 if (db == NULL)
77 return;
79 if (db->con != NULL)
80 mysql_close (db->con);
82 sfree (db->host);
83 sfree (db->user);
84 sfree (db->pass);
85 sfree (db->socket);
86 sfree (db->instance);
87 sfree (db->database);
88 sfree (db);
89 } /* }}} void mysql_database_free */
91 /* Configuration handling functions {{{
92 *
93 * <Plugin mysql>
94 * <Database "plugin_instance1">
95 * Host "localhost"
96 * Port 22000
97 * ...
98 * </Database>
99 * </Plugin>
100 */
102 static int mysql_config_set_string (char **ret_string, /* {{{ */
103 oconfig_item_t *ci)
104 {
105 char *string;
107 if ((ci->values_num != 1)
108 || (ci->values[0].type != OCONFIG_TYPE_STRING))
109 {
110 WARNING ("mysql plugin: The `%s' config option "
111 "needs exactly one string argument.", ci->key);
112 return (-1);
113 }
115 string = strdup (ci->values[0].value.string);
116 if (string == NULL)
117 {
118 ERROR ("mysql plugin: strdup failed.");
119 return (-1);
120 }
122 if (*ret_string != NULL)
123 free (*ret_string);
124 *ret_string = string;
126 return (0);
127 } /* }}} int mysql_config_set_string */
129 static int mysql_config_set_int (int *ret_int, /* {{{ */
130 oconfig_item_t *ci)
131 {
132 if ((ci->values_num != 1)
133 || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
134 {
135 WARNING ("mysql plugin: The `%s' config option "
136 "needs exactly one string argument.", ci->key);
137 return (-1);
138 }
140 *ret_int = ci->values[0].value.number;
142 return (0);
143 } /* }}} int mysql_config_set_int */
145 static int mysql_config_set_boolean (int *ret_boolean, /* {{{ */
146 oconfig_item_t *ci)
147 {
148 int status = 0;
150 if (ci->values_num != 1)
151 status = -1;
153 if (status == 0)
154 {
155 if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN)
156 *ret_boolean = ci->values[0].value.boolean;
157 else if (ci->values[0].type == OCONFIG_TYPE_STRING)
158 {
159 if (IS_TRUE (ci->values[0].value.string))
160 *ret_boolean = 1;
161 else if (IS_FALSE (ci->values[0].value.string))
162 *ret_boolean = 0;
163 else
164 status = -1;
165 }
166 else
167 status = -1;
168 }
170 if (status != 0)
171 {
172 WARNING ("mysql plugin: The `%s' config option "
173 "needs exactly one boolean argument.", ci->key);
174 return (-1);
175 }
176 return (0);
177 } /* }}} mysql_config_set_boolean */
179 static int mysql_config (oconfig_item_t *ci) /* {{{ */
180 {
181 mysql_database_t *db;
182 int plugin_block;
183 int status = 0;
184 int i;
186 if ((ci->values_num != 1)
187 || (ci->values[0].type != OCONFIG_TYPE_STRING))
188 {
189 WARNING ("mysql plugin: The `Database' block "
190 "needs exactly one string argument.");
191 return (-1);
192 }
194 db = (mysql_database_t *) malloc (sizeof (*db));
195 if (db == NULL)
196 {
197 ERROR ("mysql plugin: malloc failed.");
198 return (-1);
199 }
200 memset (db, 0, sizeof (*db));
202 /* initialize all the pointers */
203 db->host = NULL;
204 db->user = NULL;
205 db->pass = NULL;
206 db->database = NULL;
207 db->socket = NULL;
208 db->con = NULL;
210 /* trigger a notification, if it's not running */
211 db->slave_io_running = 1;
212 db->slave_sql_running = 1;
214 plugin_block = 1;
215 if (strcasecmp ("Plugin", ci->key) == 0)
216 {
217 db->instance = NULL;
218 }
219 else if (strcasecmp ("Database", ci->key) == 0)
220 {
221 plugin_block = 0;
222 status = mysql_config_set_string (&db->instance, ci);
223 if (status != 0)
224 {
225 sfree (db);
226 return (status);
227 }
228 assert (db->instance != NULL);
229 }
230 else
231 {
232 ERROR ("mysql plugin: mysql_config: "
233 "Invalid key: %s", ci->key);
234 return (-1);
235 }
237 /* Fill the `mysql_database_t' structure.. */
238 for (i = 0; i < ci->children_num; i++)
239 {
240 oconfig_item_t *child = ci->children + i;
242 if (strcasecmp ("Host", child->key) == 0)
243 status = mysql_config_set_string (&db->host, child);
244 else if (strcasecmp ("User", child->key) == 0)
245 status = mysql_config_set_string (&db->user, child);
246 else if (strcasecmp ("Password", child->key) == 0)
247 status = mysql_config_set_string (&db->pass, child);
248 else if (strcasecmp ("Port", child->key) == 0)
249 status = mysql_config_set_int (&db->port, child);
250 else if (strcasecmp ("Socket", child->key) == 0)
251 status = mysql_config_set_string (&db->socket, child);
252 /* Check if we're currently handling the `Plugin' block. If so,
253 * handle `Database' _blocks_, too. */
254 else if ((plugin_block != 0)
255 && (strcasecmp ("Database", child->key) == 0)
256 && (child->children != NULL))
257 {
258 /* If `plugin_block > 1', there has been at least one
259 * `Database' block */
260 plugin_block++;
261 status = mysql_config (child);
262 }
263 /* Now handle ordinary `Database' options (without children) */
264 else if ((strcasecmp ("Database", child->key) == 0)
265 && (child->children == NULL))
266 status = mysql_config_set_string (&db->database, child);
267 else if (strcasecmp ("MasterStats", child->key) == 0)
268 status = mysql_config_set_boolean (&db->master_stats, child);
269 else if (strcasecmp ("SlaveStats", child->key) == 0)
270 status = mysql_config_set_boolean (&db->slave_stats, child);
271 else if (strcasecmp ("SlaveNotifications", child->key) == 0)
272 status = mysql_config_set_boolean (&db->slave_notif, child);
273 else
274 {
275 WARNING ("mysql plugin: Option `%s' not allowed here.", child->key);
276 status = -1;
277 }
279 if (status != 0)
280 break;
281 }
283 /* Check if there were any `Database' blocks. */
284 if (plugin_block > 1)
285 {
286 /* There were connection blocks. Don't use any legacy stuff. */
287 if ((db->host != NULL)
288 || (db->user != NULL)
289 || (db->pass != NULL)
290 || (db->database != NULL)
291 || (db->socket != NULL)
292 || (db->port != 0))
293 {
294 WARNING ("mysql plugin: At least one <Database> "
295 "block has been found. The legacy "
296 "configuration will be ignored.");
297 }
298 mysql_database_free (db);
299 return (0);
300 }
301 else if (plugin_block != 0)
302 {
303 WARNING ("mysql plugin: You're using the legacy "
304 "configuration options. Please consider "
305 "updating your configuration!");
306 }
308 /* Check that all necessary options have been given. */
309 while (status == 0)
310 {
311 /* Zero is allowed and automatically handled by
312 * `mysql_real_connect'. */
313 if ((db->port < 0) || (db->port > 65535))
314 {
315 ERROR ("mysql plugin: Database %s: Port number out "
316 "of range: %i",
317 (db->instance != NULL)
318 ? db->instance
319 : "<legacy>",
320 db->port);
321 status = -1;
322 }
323 break;
324 } /* while (status == 0) */
326 /* If all went well, register this database for reading */
327 if (status == 0)
328 {
329 user_data_t ud;
330 char cb_name[DATA_MAX_NAME_LEN];
332 DEBUG ("mysql plugin: Registering new read callback: %s",
333 (db->database != NULL) ? db->database : "<default>");
335 memset (&ud, 0, sizeof (ud));
336 ud.data = (void *) db;
337 ud.free_func = mysql_database_free;
339 if (db->database != NULL)
340 ssnprintf (cb_name, sizeof (cb_name), "mysql-%s",
341 db->database);
342 else
343 sstrncpy (cb_name, "mysql", sizeof (cb_name));
345 plugin_register_complex_read (cb_name, mysql_read,
346 /* interval = */ NULL, &ud);
347 }
348 else
349 {
350 mysql_database_free (db);
351 return (-1);
352 }
354 return (0);
355 } /* }}} int mysql_config */
357 /* }}} End of configuration handling functions */
359 static MYSQL *getconnection (mysql_database_t *db)
360 {
361 if (db->state != 0)
362 {
363 int err;
364 if ((err = mysql_ping (db->con)) != 0)
365 {
366 WARNING ("mysql_ping failed for %s: %s",
367 (db->instance != NULL)
368 ? db->instance
369 : "<legacy>",
370 mysql_error (db->con));
371 db->state = 0;
372 }
373 else
374 {
375 db->state = 1;
376 return (db->con);
377 }
378 }
380 if ((db->con = mysql_init (db->con)) == NULL)
381 {
382 ERROR ("mysql_init failed: %s", mysql_error (db->con));
383 db->state = 0;
384 return (NULL);
385 }
387 if (mysql_real_connect (db->con, db->host, db->user, db->pass,
388 db->database, db->port, db->socket, 0) == NULL)
389 {
390 ERROR ("mysql plugin: Failed to connect to database %s "
391 "at server %s: %s",
392 (db->database != NULL) ? db->database : "<none>",
393 (db->host != NULL) ? db->host : "localhost",
394 mysql_error (db->con));
395 db->state = 0;
396 return (NULL);
397 }
398 else
399 {
400 INFO ("mysql plugin: Sucessfully connected to database %s "
401 "at server %s (server version: %s, protocol version: %d)",
402 (db->database != NULL) ? db->database : "<none>",
403 mysql_get_host_info (db->con),
404 mysql_get_server_info (db->con),
405 mysql_get_proto_info (db->con));
406 db->state = 1;
407 return (db->con);
408 }
409 } /* static MYSQL *getconnection (mysql_database_t *db) */
411 static void set_host (mysql_database_t *db, char *buf, size_t buflen)
412 {
413 /* XXX legacy mode - use hostname_g */
414 if (db->instance == NULL)
415 sstrncpy (buf, hostname_g, buflen);
416 else
417 {
418 if ((db->host == NULL)
419 || (strcmp ("", db->host) == 0)
420 || (strcmp ("localhost", db->host) == 0))
421 sstrncpy (buf, hostname_g, buflen);
422 else
423 sstrncpy (buf, db->host, buflen);
424 }
425 }
427 static void set_plugin_instance (mysql_database_t *db,
428 char *buf, size_t buflen)
429 {
430 /* XXX legacy mode - no plugin_instance */
431 if (db->instance == NULL)
432 sstrncpy (buf, "", buflen);
433 else
434 sstrncpy (buf, db->instance, buflen);
435 }
437 static void submit (const char *type, const char *type_instance,
438 value_t *values, size_t values_len, mysql_database_t *db)
439 {
440 value_list_t vl = VALUE_LIST_INIT;
442 vl.values = values;
443 vl.values_len = values_len;
445 set_host (db, vl.host, sizeof (vl.host));
447 sstrncpy (vl.plugin, "mysql", sizeof (vl.plugin));
448 set_plugin_instance (db, vl.plugin_instance, sizeof (vl.plugin_instance));
450 sstrncpy (vl.type, type, sizeof (vl.type));
451 if (type_instance != NULL)
452 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
454 plugin_dispatch_values (&vl);
455 } /* submit */
457 static void counter_submit (const char *type, const char *type_instance,
458 counter_t value, mysql_database_t *db)
459 {
460 value_t values[1];
462 values[0].counter = value;
463 submit (type, type_instance, values, STATIC_ARRAY_SIZE (values), db);
464 } /* void counter_submit */
466 static void gauge_submit (const char *type, const char *type_instance,
467 gauge_t value, mysql_database_t *db)
468 {
469 value_t values[1];
471 values[0].gauge = value;
472 submit (type, type_instance, values, STATIC_ARRAY_SIZE (values), db);
473 } /* void gauge_submit */
475 static void qcache_submit (counter_t hits, counter_t inserts,
476 counter_t not_cached, counter_t lowmem_prunes,
477 gauge_t queries_in_cache, mysql_database_t *db)
478 {
479 value_t values[5];
481 values[0].counter = hits;
482 values[1].counter = inserts;
483 values[2].counter = not_cached;
484 values[3].counter = lowmem_prunes;
485 values[4].gauge = queries_in_cache;
487 submit ("mysql_qcache", NULL, values, STATIC_ARRAY_SIZE (values), db);
488 } /* void qcache_submit */
490 static void threads_submit (gauge_t running, gauge_t connected, gauge_t cached,
491 counter_t created, mysql_database_t *db)
492 {
493 value_t values[4];
495 values[0].gauge = running;
496 values[1].gauge = connected;
497 values[2].gauge = cached;
498 values[3].counter = created;
500 submit ("mysql_threads", NULL, values, STATIC_ARRAY_SIZE (values), db);
501 } /* void threads_submit */
503 static void traffic_submit (counter_t rx, counter_t tx, mysql_database_t *db)
504 {
505 value_t values[2];
507 values[0].counter = rx;
508 values[1].counter = tx;
510 submit ("mysql_octets", NULL, values, STATIC_ARRAY_SIZE (values), db);
511 } /* void traffic_submit */
513 static MYSQL_RES *exec_query (MYSQL *con, const char *query)
514 {
515 MYSQL_RES *res;
517 int query_len = strlen (query);
519 if (mysql_real_query (con, query, query_len))
520 {
521 ERROR ("mysql plugin: Failed to execute query: %s",
522 mysql_error (con));
523 INFO ("mysql plugin: SQL query was: %s", query);
524 return (NULL);
525 }
527 res = mysql_store_result (con);
528 if (res == NULL)
529 {
530 ERROR ("mysql plugin: Failed to store query result: %s",
531 mysql_error (con));
532 INFO ("mysql plugin: SQL query was: %s", query);
533 return (NULL);
534 }
536 return (res);
537 } /* exec_query */
539 static int mysql_read_master_stats (mysql_database_t *db, MYSQL *con)
540 {
541 MYSQL_RES *res;
542 MYSQL_ROW row;
544 char *query;
545 int field_num;
546 unsigned long long position;
548 query = "SHOW MASTER STATUS";
550 res = exec_query (con, query);
551 if (res == NULL)
552 return (-1);
554 row = mysql_fetch_row (res);
555 if (row == NULL)
556 {
557 ERROR ("mysql plugin: Failed to get master statistics: "
558 "`%s' did not return any rows.", query);
559 return (-1);
560 }
562 field_num = mysql_num_fields (res);
563 if (field_num < 2)
564 {
565 ERROR ("mysql plugin: Failed to get master statistics: "
566 "`%s' returned less than two columns.", query);
567 return (-1);
568 }
570 position = atoll (row[1]);
571 counter_submit ("mysql_log_position", "master-bin", position, db);
573 row = mysql_fetch_row (res);
574 if (row != NULL)
575 WARNING ("mysql plugin: `%s' returned more than one row - "
576 "ignoring further results.", query);
578 mysql_free_result (res);
580 return (0);
581 } /* mysql_read_master_stats */
583 static int mysql_read_slave_stats (mysql_database_t *db, MYSQL *con)
584 {
585 MYSQL_RES *res;
586 MYSQL_ROW row;
588 char *query;
589 int field_num;
591 /* WTF? libmysqlclient does not seem to provide any means to
592 * translate a column name to a column index ... :-/ */
593 const int READ_MASTER_LOG_POS_IDX = 6;
594 const int SLAVE_IO_RUNNING_IDX = 10;
595 const int SLAVE_SQL_RUNNING_IDX = 11;
596 const int EXEC_MASTER_LOG_POS_IDX = 21;
597 const int SECONDS_BEHIND_MASTER_IDX = 32;
599 query = "SHOW SLAVE STATUS";
601 res = exec_query (con, query);
602 if (res == NULL)
603 return (-1);
605 row = mysql_fetch_row (res);
606 if (row == NULL)
607 {
608 ERROR ("mysql plugin: Failed to get slave statistics: "
609 "`%s' did not return any rows.", query);
610 return (-1);
611 }
613 field_num = mysql_num_fields (res);
614 if (field_num < 33)
615 {
616 ERROR ("mysql plugin: Failed to get slave statistics: "
617 "`%s' returned less than 33 columns.", query);
618 return (-1);
619 }
621 if (db->slave_stats)
622 {
623 unsigned long long counter;
624 double gauge;
626 counter = atoll (row[READ_MASTER_LOG_POS_IDX]);
627 counter_submit ("mysql_log_position", "slave-read", counter, db);
629 counter = atoll (row[EXEC_MASTER_LOG_POS_IDX]);
630 counter_submit ("mysql_log_position", "slave-exec", counter, db);
632 if (row[SECONDS_BEHIND_MASTER_IDX] != NULL)
633 {
634 gauge = atof (row[SECONDS_BEHIND_MASTER_IDX]);
635 gauge_submit ("time_offset", NULL, gauge, db);
636 }
637 }
639 if (db->slave_notif)
640 {
641 notification_t n = { 0, time (NULL), "", "",
642 "mysql", "", "time_offset", "", NULL };
644 char *io, *sql;
646 io = row[SLAVE_IO_RUNNING_IDX];
647 sql = row[SLAVE_SQL_RUNNING_IDX];
649 set_host (db, n.host, sizeof (n.host));
650 set_plugin_instance (db,
651 n.plugin_instance, sizeof (n.plugin_instance));
653 if (((io == NULL) || (strcasecmp (io, "yes") != 0))
654 && (db->slave_io_running))
655 {
656 n.severity = NOTIF_WARNING;
657 ssnprintf (n.message, sizeof (n.message),
658 "slave I/O thread not started or not connected to master");
659 plugin_dispatch_notification (&n);
660 db->slave_io_running = 0;
661 }
662 else if (((io != NULL) && (strcasecmp (io, "yes") == 0))
663 && (! db->slave_io_running))
664 {
665 n.severity = NOTIF_OKAY;
666 ssnprintf (n.message, sizeof (n.message),
667 "slave I/O thread started and connected to master");
668 plugin_dispatch_notification (&n);
669 db->slave_io_running = 1;
670 }
672 if (((sql == NULL) || (strcasecmp (sql, "yes") != 0))
673 && (db->slave_sql_running))
674 {
675 n.severity = NOTIF_WARNING;
676 ssnprintf (n.message, sizeof (n.message),
677 "slave SQL thread not started");
678 plugin_dispatch_notification (&n);
679 db->slave_sql_running = 0;
680 }
681 else if (((sql != NULL) && (strcasecmp (sql, "yes") == 0))
682 && (! db->slave_sql_running))
683 {
684 n.severity = NOTIF_OKAY;
685 ssnprintf (n.message, sizeof (n.message),
686 "slave SQL thread started");
687 plugin_dispatch_notification (&n);
688 db->slave_sql_running = 0;
689 }
690 }
692 row = mysql_fetch_row (res);
693 if (row != NULL)
694 WARNING ("mysql plugin: `%s' returned more than one row - "
695 "ignoring further results.", query);
697 mysql_free_result (res);
699 return (0);
700 } /* mysql_read_slave_stats */
702 static int mysql_read (user_data_t *ud)
703 {
704 mysql_database_t *db;
705 MYSQL *con;
706 MYSQL_RES *res;
707 MYSQL_ROW row;
708 char *query;
709 int field_num;
711 unsigned long long qcache_hits = 0ULL;
712 unsigned long long qcache_inserts = 0ULL;
713 unsigned long long qcache_not_cached = 0ULL;
714 unsigned long long qcache_lowmem_prunes = 0ULL;
715 int qcache_queries_in_cache = -1;
717 int threads_running = -1;
718 int threads_connected = -1;
719 int threads_cached = -1;
720 unsigned long long threads_created = 0ULL;
722 unsigned long long traffic_incoming = 0ULL;
723 unsigned long long traffic_outgoing = 0ULL;
725 if ((ud == NULL) || (ud->data == NULL))
726 {
727 ERROR ("mysql plugin: mysql_database_read: Invalid user data.");
728 return (-1);
729 }
731 db = (mysql_database_t *) ud->data;
733 /* An error message will have been printed in this case */
734 if ((con = getconnection (db)) == NULL)
735 return (-1);
737 query = "SHOW STATUS";
738 if (mysql_get_server_version (con) >= 50002)
739 query = "SHOW GLOBAL STATUS";
741 res = exec_query (con, query);
742 if (res == NULL)
743 return (-1);
745 field_num = mysql_num_fields (res);
746 while ((row = mysql_fetch_row (res)))
747 {
748 char *key;
749 unsigned long long val;
751 key = row[0];
752 val = atoll (row[1]);
754 if (strncmp (key, "Com_",
755 strlen ("Com_")) == 0)
756 {
757 if (val == 0ULL)
758 continue;
760 /* Ignore `prepared statements' */
761 if (strncmp (key, "Com_stmt_", strlen ("Com_stmt_")) != 0)
762 counter_submit ("mysql_commands",
763 key + strlen ("Com_"),
764 val, db);
765 }
766 else if (strncmp (key, "Handler_",
767 strlen ("Handler_")) == 0)
768 {
769 if (val == 0ULL)
770 continue;
772 counter_submit ("mysql_handler",
773 key + strlen ("Handler_"),
774 val, db);
775 }
776 else if (strncmp (key, "Qcache_",
777 strlen ("Qcache_")) == 0)
778 {
779 if (strcmp (key, "Qcache_hits") == 0)
780 qcache_hits = val;
781 else if (strcmp (key, "Qcache_inserts") == 0)
782 qcache_inserts = val;
783 else if (strcmp (key, "Qcache_not_cached") == 0)
784 qcache_not_cached = val;
785 else if (strcmp (key, "Qcache_lowmem_prunes") == 0)
786 qcache_lowmem_prunes = val;
787 else if (strcmp (key, "Qcache_queries_in_cache") == 0)
788 qcache_queries_in_cache = (int) val;
789 }
790 else if (strncmp (key, "Bytes_",
791 strlen ("Bytes_")) == 0)
792 {
793 if (strcmp (key, "Bytes_received") == 0)
794 traffic_incoming += val;
795 else if (strcmp (key, "Bytes_sent") == 0)
796 traffic_outgoing += val;
797 }
798 else if (strncmp (key, "Threads_",
799 strlen ("Threads_")) == 0)
800 {
801 if (strcmp (key, "Threads_running") == 0)
802 threads_running = (int) val;
803 else if (strcmp (key, "Threads_connected") == 0)
804 threads_connected = (int) val;
805 else if (strcmp (key, "Threads_cached") == 0)
806 threads_cached = (int) val;
807 else if (strcmp (key, "Threads_created") == 0)
808 threads_created = val;
809 }
810 else if (strncmp (key, "Table_locks_",
811 strlen ("Table_locks_")) == 0)
812 {
813 counter_submit ("mysql_locks",
814 key + strlen ("Table_locks_"),
815 val, db);
816 }
817 }
818 mysql_free_result (res); res = NULL;
820 if ((qcache_hits != 0ULL)
821 || (qcache_inserts != 0ULL)
822 || (qcache_not_cached != 0ULL)
823 || (qcache_lowmem_prunes != 0ULL))
824 qcache_submit (qcache_hits, qcache_inserts, qcache_not_cached,
825 qcache_lowmem_prunes, qcache_queries_in_cache, db);
827 if (threads_created != 0ULL)
828 threads_submit (threads_running, threads_connected,
829 threads_cached, threads_created, db);
831 traffic_submit (traffic_incoming, traffic_outgoing, db);
833 if (db->master_stats)
834 mysql_read_master_stats (db, con);
836 if ((db->slave_stats) || (db->slave_notif))
837 mysql_read_slave_stats (db, con);
839 return (0);
840 } /* int mysql_read */
842 void module_register (void)
843 {
844 plugin_register_complex_config ("mysql", mysql_config);
845 } /* void module_register */