mysql plugin
This commit is contained in:
parent
ebf4af7f13
commit
bddb4b013a
15
Makefile
15
Makefile
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@ -2,6 +2,8 @@
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WITH_RRD = yes
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WITH_MYSQL = yes
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# ############################
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SAMMLER_SRC := sammler.c configfile.c logging.c network.c plugins.c
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@ -13,9 +15,13 @@ LDFLAGS := -ldl -rdynamic
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# ############################
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ifeq ("$(WITH_RRD)", "yes")
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SAMMLER_SRC += rrdtool.c
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CFLAGS += -DWITH_RRD
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LDFLAGS += -lrrd
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SAMMLER_SRC += rrdtool.c
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CFLAGS += -DWITH_RRD
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LDFLAGS += -lrrd
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endif
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ifeq ("$(WITH_MYSQL)", "yes")
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PLUGIN_SRC += p_mysql.c
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endif
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# ############################
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@ -34,6 +40,9 @@ sammler: $(SAMMLER_SRC:%.c=%.o)
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%_sh.o: %.c
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$(CC) $(CFLAGS) -fPIC -o $@ -c $<
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p_mysql.so: p_mysql_sh.o p_mysql_helper_sh.o
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$(LD) -shared -lmysqlclient -o $@ $^
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%.so: %_sh.o
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$(LD) -shared -o $@ $<
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@ -0,0 +1,241 @@
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/***************************************************************************
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* Copyright (C) 10/2006 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "plugins.h"
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#include "configfile.h"
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#include "list.h"
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#include "p_mysql_helper.h"
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#define DS_TRAFFIC 1
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#define DS_COMMANDS 2
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#define DS_QCACHE 3
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#define DS_THREADS 4
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struct server_entry {
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struct list_head list;
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void *mysql;
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char name[0];
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};
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static LIST_HEAD(server_list);
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static char *traffic_ds_def = {
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"DS:bytes_received:COUNTER:90:0:U "
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"DS:bytes_sent:COUNTER:90:0:U "
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};
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static char *commands_ds_def = {
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"DS:com_delete:COUNTER:90:0:U "
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"DS:com_insert:COUNTER:90:0:U "
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"DS:com_select:COUNTER:90:0:U "
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"DS:com_update:COUNTER:90:0:U "
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"DS:connections:COUNTER:90:0:U "
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"DS:questions:COUNTER:90:0:U "
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};
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static char *qcache_ds_def = {
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"DS:qc_free_blocks:COUNTER:90:0:U "
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"DS:qc_free_memory:COUNTER:90:0:U "
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"DS:qc_hits:COUNTER:90:0:U "
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"DS:qc_inserts:COUNTER:90:0:U "
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"DS:qc_lowmem_prunes:COUNTER:90:0:U "
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"DS:qc_queries_in_cache:COUNTER:90:0:U "
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"DS:qc_total_blocks:COUNTER:90:0:U "
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};
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static char *threads_ds_def = {
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"DS:threads_cached:COUNTER:90:0:U "
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"DS:threads_connected:COUNTER:90:0:U "
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"DS:threads_created:COUNTER:90:0:U "
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"DS:threads_running:COUNTER:90:0:U "
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};
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static char * get_ds(int ds_id)
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{
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switch (ds_id) {
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case DS_TRAFFIC:
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return traffic_ds_def;
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case DS_COMMANDS:
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return commands_ds_def;
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case DS_QCACHE:
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return qcache_ds_def;
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case DS_THREADS:
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return threads_ds_def;
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default:
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return NULL;
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}
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}
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struct sammler_plugin plugin;
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static int probe(void)
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{
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struct mysql_stats stats;
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char filename[32];
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int len;
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memset(&stats, 0, sizeof(struct mysql_stats));
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struct server_entry *entry;
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list_for_each_entry(entry, &server_list, list) {
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if (ping_connection(entry->mysql) != 0)
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continue;
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if (get_stats(entry->mysql, &stats) != 0)
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continue;
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len = snprintf(filename, sizeof(filename), "mysql-traffic-%s.rrd", entry->name);
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if (len < 0 || len >= sizeof(filename))
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continue;
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probe_submit(&plugin, filename, DS_TRAFFIC, "%llu:%llu",
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stats.bytes_received, stats.bytes_sent);
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len = snprintf(filename, sizeof(filename), "mysql-commands-%s.rrd", entry->name);
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if (len < 0 || len >= sizeof(filename))
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continue;
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probe_submit(&plugin, filename, DS_COMMANDS, "%llu:%llu:%llu:%llu:%llu:%llu",
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stats.com_delete, stats.com_insert,
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stats.com_select, stats.com_update,
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stats.connections, stats.questions);
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len = snprintf(filename, sizeof(filename), "mysql-qcache-%s.rrd", entry->name);
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if (len < 0 || len >= sizeof(filename))
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continue;
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probe_submit(&plugin, filename, DS_QCACHE, "%llu:%llu:%llu:%llu:%llu:%llu:%llu",
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stats.qc_free_blocks, stats.qc_free_memory,
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stats.qc_hits, stats.qc_inserts,
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stats.qc_lowmem_prunes, stats.qc_queries_in_cache,
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stats.qc_total_blocks);
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len = snprintf(filename, sizeof(filename), "mysql-threads-%s.rrd", entry->name);
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if (len < 0 || len >= sizeof(filename))
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continue;
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probe_submit(&plugin, filename, DS_THREADS, "%llu:%llu:%llu:%llu",
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stats.threads_cached, stats.threads_connected,
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stats.threads_created, stats.threads_running);
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}
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return 0;
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}
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static int init(void)
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{
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int retval = -1;
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struct conf_section *section;
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section = config_get_section("p_mysql");
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if (section == NULL) {
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log_print(LOG_ERROR, "p_mysql: no config section found");
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return -1;
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}
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struct conf_tupel *tupel;
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list_for_each_entry(tupel, §ion->tupel, list) {
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if (strcmp(tupel->option, "server"))
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continue;
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char *name = tupel->parameter;
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char *host = strchr(name, ':');
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if (host == NULL) {
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log_print(LOG_ERROR, "p_mysql: parse error (1)");
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continue;
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}
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*host++ = '\0';
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char *user = strchr(host, ':');
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if (user == NULL) {
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log_print(LOG_ERROR, "p_mysql: parse error (2)");
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*--host = ':';
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continue;
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}
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*user++ = '\0';
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char *pass = strchr(user, ':');
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if (pass == NULL) {
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log_print(LOG_ERROR, "p_mysql: parse error (3)");
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*--host = ':';
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*--user = ':';
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continue;
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}
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*pass++ = '\0';
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int len = strlen(name);
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struct server_entry *entry = malloc(sizeof(struct server_entry) + len +1);
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if (entry == NULL) {
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log_print(LOG_ERROR, "p_mysql: out of memory");
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*--host = ':';
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*--user = ':';
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*--pass = ':';
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continue;
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}
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strcpy(entry->name, name);
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entry->mysql = init_connection(host, user, pass);
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if (entry->mysql < 0) {
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free(entry);
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*--host = ':';
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*--user = ':';
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*--pass = ':';
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continue;
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}
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*--host = ':';
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*--user = ':';
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*--pass = ':';
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log_print(LOG_DEBUG, "p_mysql: added server '%s'", entry->name);
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list_add_tail(&entry->list, &server_list);
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retval = 0;
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}
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return retval;
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}
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static int fini(void)
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{
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struct server_entry *entry, *tmp;
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list_for_each_entry_safe(entry, tmp, &server_list, list)
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free(entry);
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return 0;
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}
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struct sammler_plugin plugin = {
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.name = "mysql",
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.interval = 60,
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.init = &init,
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.fini = &fini,
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.probe = &probe,
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.get_ds = &get_ds,
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};
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@ -0,0 +1,130 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <mysql/mysql.h>
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#include "logging.h"
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#include "p_mysql_helper.h"
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void * init_connection(char *host, char *user, char *pass)
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{
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MYSQL *con = NULL;
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con = mysql_init(con);
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if (con == NULL)
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return NULL;
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con = mysql_real_connect(con, host, user, pass, NULL, 0, NULL, 0);
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if (con == NULL) {
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log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
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return NULL;
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}
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return con;
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}
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int ping_connection(void *mysql)
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{
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MYSQL *con = mysql;
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return mysql_ping(con);
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}
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int get_stats(void *mysql, struct mysql_stats *stats)
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{
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MYSQL *con = mysql;
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char *query;
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if (mysql_get_server_version(con) >= 50002)
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query = "SHOW GLOBAL STATUS";
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else
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query = "SHOW STATUS";
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if (mysql_real_query(con, query, strlen(query))) {
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log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
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return -1;
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}
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MYSQL_RES *res;
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res = mysql_store_result(con);
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if (res == NULL) {
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log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
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return -1;
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}
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MYSQL_ROW row;
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while ((row = mysql_fetch_row(res))) {
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char *key;
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unsigned long long val;
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key = row[0];
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val = atoll(row[1]);
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if (!strncmp(key, "Bytes_", 6)) {
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if (!strcmp(key +6, "received"))
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stats->bytes_received = val;
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else if (!strcmp(key +6, "sent"))
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stats->bytes_sent = val;
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} else if (!strncmp(key, "Com_", 4)) {
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if (!strcmp(key +4, "delete"))
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stats->com_delete = val;
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else if (!strcmp(key +4, "insert"))
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stats->com_insert = val;
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else if (!strcmp(key +4, "select"))
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stats->com_select = val;
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else if (!strcmp(key +4, "update"))
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stats->com_update = val;
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} else if (!strcmp(key, "Connections")) {
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stats->connections = val;
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} else if (!strncmp(key, "Qcache_", 7)) {
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if (!strcmp(key +7, "free_blocks"))
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stats->qc_free_blocks = val;
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else if (!strcmp(key +7, "free_memory"))
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stats->qc_free_memory = val;
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else if (!strcmp(key +7, "hits"))
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stats->qc_hits = val;
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else if (!strcmp(key +7, "inserts"))
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stats->qc_inserts = val;
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else if (!strcmp(key +7, "lowmem_prunes"))
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stats->qc_lowmem_prunes = val;
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else if (!strcmp(key +7, "queries_in_cache"))
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stats->qc_queries_in_cache = val;
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else if (!strcmp(key +7, "total_blocks"))
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stats->qc_total_blocks = val;
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} else if (!strcmp(key, "Questions")) {
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stats->questions = val;
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} else if (!strncmp(key, "Threads_", 8)) {
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if (!strcmp(key, "Threads_cached"))
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stats->threads_cached = val;
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else if (!strcmp(key, "Threads_connected"))
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stats->threads_connected = val;
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else if (!strcmp(key, "Threads_created"))
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stats->threads_created = val;
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else if (!strcmp(key, "Threads_running"))
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stats->threads_running = val;
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}
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}
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mysql_free_result(res);
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return 0;
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}
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@ -0,0 +1,33 @@
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#ifndef _P_MYSQL_HELPER_H_
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#define _P_MYSQL_HELPER_H_
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#include <stdint.h>
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struct mysql_stats {
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uint64_t bytes_received;
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uint64_t bytes_sent;
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uint64_t com_delete;
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uint64_t com_insert;
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uint64_t com_select;
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uint64_t com_update;
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uint64_t connections;
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uint64_t qc_free_blocks;
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uint64_t qc_free_memory;
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uint64_t qc_hits;
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uint64_t qc_inserts;
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uint64_t qc_lowmem_prunes;
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uint64_t qc_queries_in_cache;
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uint64_t qc_total_blocks;
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uint64_t questions;
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uint64_t threads_cached;
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uint64_t threads_connected;
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uint64_t threads_created;
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uint64_t threads_running;
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};
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void * init_connection(char *host, char *user, char *pass);
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int ping_connection(void *mysql);
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int get_stats(void *mysql, struct mysql_stats *stats);
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#endif /* _P_MYSQL_HELPER_H_ */
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@ -96,12 +96,11 @@ static int plugin_load(char *filename)
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void plugin_init(int flags)
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{
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struct conf_section *section;
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struct conf_tupel *tupel;
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section = config_get_section("global");
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if (section == NULL)
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return;
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struct conf_tupel *tupel;
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list_for_each_entry(tupel, §ion->tupel, list)
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if (!strcmp(tupel->option, "plugin"))
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plugin_load(tupel->parameter);
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@ -20,6 +20,7 @@ plugin p_mount.so
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#plugin p_ctstat.so
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#plugin p_rtstat.so
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plugin p_random.so
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#plugin p_mysql.so
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# 1h(10s), 12h(1min), 48h(2min), 14d(15min), 4w(60min), 2y(12h)
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rra RRA:MIN:0.1:1:360 RRA:AVERAGE:0.1:1:360 RRA:MAX:0.1:1:360
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@ -28,3 +29,6 @@ rra RRA:MIN:0.1:12:1440 RRA:AVERAGE:0.1:12:1440 RRA:MAX:0.1:12:1440
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rra RRA:MIN:0.1:90:1344 RRA:AVERAGE:0.1:90:1344 RRA:MAX:0.1:90:1344
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rra RRA:MIN:0.1:360:1440 RRA:AVERAGE:0.1:360:1440 RRA:MAX:0.1:360:1440
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rra RRA:MIN:0.1:4320:1440 RRA:AVERAGE:0.1:4320:1440 RRA:MAX:0.1:4320:1440
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[p_mysql]
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server name:host:user:pass
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