zabbix 监控MySQL
现在我来说一下我的监控环境
zabbix-3.0.3
MySQL-5.6.23
1.首先我们要登录MySQL,创建一个监控MySQL的用户
GRANT USAGE,PROCESS,SUPER,REPLICATION CLIENT,REPLICATION SLAVE ON *.* TO 'zabbixagent'@'localhost' IDENTIFIED BY 'zabbixagent';
2。根据zabbix监控MySQL的key改写脚本
- [root@DBSlave-live etc]# cd zabbix_agentd.conf.d/
[root@DBSlave-live zabbix_agentd.conf.d]# ls
mysql_status.conf
[root@DBSlave-live zabbix_agentd.conf.d]# cat mysql_status.conf
### MySQL DB Infomation- UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|awk '{print $$2}'
- UserParameter=mysql.variables[*],echo "show global variables where Variable_name='$1';"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|awk '{print $$2}'
- UserParameter=mysql.ping,/data/usr/local/mysql/bin/mysqladmin --defaults-file=/data/usr/local/zabbix/etc/.my.cnf ping|grep -c alive
- UserParameter=mysql.version,echo "select version();"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N
- #### MySQL Slave Information
- UserParameter=mysql.slave.Seconds_Behind_Master,echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Seconds_Behind_Master"|awk '{print $2}'
- #UserParameter=mysql.slave.Slave_IO_Running,echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Slave_IO_Running"|awk '{print $2}'
- #UserParameter=mysql.slave.Slave_SQL_Running,echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Slave_SQL_Running"|awk '{print $2}'
- #UserParameter=mysql.replication[*],echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Slave_IO_Running"|awk '{print $2}'|grep -c Yes
- UserParameter=mysql.replication[*],echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep -E "Slave_IO_Running|Slave_SQL_Running"|awk '{print $2}'|grep -c Yes
- UserParameter=mysql.slave.Relay_Log_Pos,echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Relay_Log_Pos"|awk '{print $2}'
- UserParameter=mysql.slave.Exec_Master_Log_Pos,echo "show slave status\G"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep "Exec_Master_Log_Pos"|awk '{print $2}'
- UserParameter=mysql.process,echo "show processlist"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf|grep -v "Id"|wc -l
- #### MySQL InnoDB Information
- #
- UserParameter=mysql.innodb[*],/usr/local/zabbix/bin/mysql_innodb_status.sh $1
- [root@DBSlave-live bin]# pwd
- /data/usr/local/zabbix/bin
- [root@DBSlave-live bin]# ls
- mysql_health.sh mysql_innodb_status.sh zabbix_get zabbix_sender
- [root@DBSlave-live bin]# cat mysql_innodb_status.sh
- #!/bin/bash
- #Get InnoDB Row Lock Details and InnoDB Transcation Lock Memory
- #/data/usr/local/mysql/bin/mysql> SELECT SUM(trx_rows_locked) AS rows_locked, SUM(trx_rows_modified) AS rows_modified, SUM(trx_lock_memory_bytes) AS lock_memory FROM information_schema.INNODB_TRX;
- #+-------------+---------------+-------------+
- #| rows_locked | rows_modified | lock_memory |
- #+-------------+---------------+-------------+
- #| NULL | NULL | NULL |
- #+-------------+---------------+-------------+
- #1 row in set (0.00 sec)
- #+-------------+---------------+-------------+
- #| rows_locked | rows_modified | lock_memory |
- #+-------------+---------------+-------------+
- #| 0 | 0 | 376 |
- #+-------------+---------------+-------------+
- #Get InnoDB Compression Time
- #/data/usr/local/mysql/bin/mysql> SELECT SUM(compress_time) AS compress_time, SUM(uncompress_time) AS uncompress_time FROM information_schema.INNODB_CMP;
- #+---------------+-----------------+
- #| compress_time | uncompress_time |
- #+---------------+-----------------+
- #| 0 | 0 |
- #+---------------+-----------------+
- #1 row in set (0.00 sec)
- #Get InnoDB Transaction states
- #TRX_STATE Transaction execution state. One of RUNNING, LOCK WAIT, ROLLING BACK or COMMITTING.
- #/data/usr/local/mysql/bin/mysql> SELECT LOWER(REPLACE(trx_state, " ", "_")) AS state, count(*) AS cnt from information_schema.INNODB_TRX GROUP BY state;
- #+---------+-----+
- #| state | cnt |
- #+---------+-----+
- #| running | 1 |
- #+---------+-----+
- #1 row in set (0.00 sec)
- innodb_metric=$1
- case $innodb_metric in
- Innodb_rows_locked)
- value=$(echo "SELECT SUM(trx_rows_locked) AS rows_locked, SUM(trx_rows_modified) AS rows_modified, SUM(trx_lock_memory_bytes) AS lock_memory FROM information_schema.INNODB_TRX;"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N| awk '{print $1}')
- if [ "$value" == "NULL" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_rows_modified)
- value=$(echo "SELECT SUM(trx_rows_locked) AS rows_locked, SUM(trx_rows_modified) AS rows_modified, SUM(trx_lock_memory_bytes) AS lock_memory FROM information_schema.INNODB_TRX;"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N| awk '{print $2}')
- if [ "$value" == "NULL" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_trx_lock_memory)
- value=$(echo "SELECT SUM(trx_rows_locked) AS rows_locked, SUM(trx_rows_modified) AS rows_modified, SUM(trx_lock_memory_bytes) AS lock_memory FROM information_schema.INNODB_TRX;"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N| awk '{print $3}')
- if [ "$value" == "NULL" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_compress_time)
- value=$(echo "SELECT SUM(compress_time) AS compress_time, SUM(uncompress_time) AS uncompress_time FROM information_schema.INNODB_CMP;"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|awk '{print $1}')
- echo $value
- ;;
- Innodb_uncompress_time)
- value=$(echo "SELECT SUM(compress_time) AS compress_time, SUM(uncompress_time) AS uncompress_time FROM information_schema.INNODB_CMP;"|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|awk '{print $2}')
- echo $value
- ;;
- Innodb_trx_running)
- value=$(echo 'SELECT LOWER(REPLACE(trx_state, " ", "_")) AS state, count(*) AS cnt from information_schema.INNODB_TRX GROUP BY state;'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep running|awk '{print $2}')
- if [ "$value" == "" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_trx_lock_wait)
- value=$(echo 'SELECT LOWER(REPLACE(trx_state, " ", "_")) AS state, count(*) AS cnt from information_schema.INNODB_TRX GROUP BY state;'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep lock_wait|awk '{print $2}')
- if [ "$value" == "" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_trx_rolling_back)
- value=$(echo 'SELECT LOWER(REPLACE(trx_state, " ", "_")) AS state, count(*) AS cnt from information_schema.INNODB_TRX GROUP BY state;'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep rolling_back|awk '{print $2}')
- if [ "$value" == "" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_trx_committing)
- value=$(echo 'SELECT LOWER(REPLACE(trx_state, " ", "_")) AS state, count(*) AS cnt from information_schema.INNODB_TRX GROUP BY state;'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep committing|awk '{print $2}')
- if [ "$value" == "" ];then
- echo 0
- else
- echo $value
- fi
- ;;
- Innodb_trx_history_list_length)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "History list length"|awk '{print $4}'
- ;;
- Innodb_last_checkpoint_at)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Last checkpoint at"|awk '{print $4}'
- ;;
- Innodb_log_sequence_number)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Log sequence number"|awk '{print $4}'
- ;;
- Innodb_log_flushed_up_to)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Log flushed up to"|awk '{print $5}'
- ;;
- Innodb_open_read_views_inside_innodb)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "read views open inside InnoDB"|awk '{print $1}'
- ;;
- Innodb_queries_inside_innodb)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "queries inside InnoDB"|awk '{print $1}'
- ;;
- Innodb_queries_in_queue)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "queries in queue"|awk '{print $5}'
- ;;
- Innodb_hash_seaches)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "hash searches"|awk '{print $1}'
- ;;
- Innodb_non_hash_searches)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "non-hash searches/s"|awk '{print $4}'
- ;;
- Innodb_node_heap_buffers)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "node heap"|awk '{print $8}'
- ;;
- Innodb_mutex_os_waits)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Mutex spin waits"|awk '{print $9}'
- ;;
- Innodb_mutex_spin_rounds)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Mutex spin waits"|awk '{print $6}'|tr -d ','
- ;;
- Innodb_mutex_spin_waits)
- echo 'show engine innodb status\G'|/data/usr/local/mysql/bin/mysql --defaults-file=/data/usr/local/zabbix/etc/.my.cnf -N|grep "Mutex spin waits"|awk '{print $4}'|tr -d ','
- ;;
- *)
- echo "wrong parameter"
- ;;
- esac
要是不定义下面这个文件的话,直接在配置文件里面直接写用户名和密码的话会报错
/etc/zabbix/my.conf 这个文件定义的是zabbix这个mysql用户的信息,然后直接指定这个文件,如果我们在命令行直接输入zabbix的用户密码的话会一行提示,影响我们zabbix取值,例如:
如果我们直接指定了这个文件,那么那行提示就不会出现
- [root@DBSlave-live etc]# ls
- zabbix_agentd.conf zabbix_agentd.conf.d
- [root@DBSlave-live etc]# ls -al
- total 20
- drwxr-xr-x 3 root root 4096 Nov 17 16:42 .
- drwxr-xr-x 7 root root 4096 Nov 17 16:41 ..
- -rw-r--r-- 1 root root 99 Nov 2 15:35 .my.cnf
- -rw-r--r-- 1 root root 182 Nov 2 15:32 zabbix_agentd.conf
- drwxr-xr-x 2 root root 4096 Nov 18 11:16 zabbix_agentd.conf.d
- [root@DBSlave-live etc]# cat .my.cnf
- [mysql]
- user=zabbixagent
- password=konzh123
- [mysqladmin]
- user=zabbixagent
- password=konzh123
这里我们还需要修改一下zabbix客户端的配置文件
- [root@DBSlave-live etc]# vim zabbix_agentd.conf
- LogFile=/tmp/zabbix_agentd.log
- Server=13.59.15.9
- ServerActive=13.59.15.9
- Hostname=DB_Slave_245
- Include=/data/usr/local/zabbix/etc/zabbix_agentd.conf.d/*
- UnsafeUserParameters=1 #允许自定义key
- ~
下面是在MySQLserver端测试一下,看一下自定义的key能不能获取到值
- [root@openvpn_nagios_cacti src]# zabbix_get -s 13.59.15.45 -k "mysql.replication"
- 2
- [root@openvpn_nagios_cacti src]# zabbix_get -s 13.59.15.45 -k "mysql.replication"
- 1
- [root@openvpn_nagios_cacti src]# zabbix_get -s 13.59.15.45 -k "mysql.process"
- 4
我们都配置完成之后,我们重启一下zabbix客户端
*************************************************************************************************************
我们的脚本都写好了,通过zabbix_get也是可以获取到数据的,现在我们在zabbix上来干了
配置--->主机--->DB_Slave_245--->监控项--->创建监控项
这里我们自定义的key 需要手动输入key名称(就是你在客户端自己定义的)
然后创建触发器(triggers)
点击创建触发器--->名称--->表达式构造器--->构造
创建表达式的时候,上面的Item就是刚刚之前创建的item,自己选择一下
检测它最后一次的取值是不是小于2,定义N的值为2(因为有两个线程,IO线程和SQL线程都是YES的时候这个值才会是2),如果取得的值小于2就说明有问题啦
这里我们insert之后,点击一下增加表达式(Add),是expression下面的Add,最后才点击最下面的Add(添加触发器)
还有就是这里的严重性选择一下,这里要是不选的话,是不会触发报警的,我这里一开始忘了选,我测试的时候,明明是主从不同步的,但是就是不报警,回头看才知道这里的严重性没有选择
文章摘自:
http://blog.sctux.com/?p=396
http://www.tuicool.com/articles/eEJJzi3
http://john88wang.blog.51cto.com/2165294/1596272?utm_source=tuicool&utm_medium=referral
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