Zabbix监控mysql配置及故障告警配置

本文主要介绍zabbix监控mysql的配置，包含使用zabbix自带模板监控mysql相关信息及自定义key监控mysql同步情况。同时介绍了触发器的创建及zabbix通过邮件方式告警配置。

一、配置自带模板监控mysql

1.提供配置文件模板

文件位置在源码包/usr/local/src/zabbix-3.0.4/conf/zabbix_agentd/userparameter_mysql.conf

#cp/usr/local/src/zabbix-3.0.4/conf/zabbix_agentd/userparameter_mysql.conf /usr/local/zabbix/etc/zabbix_agentd.conf.d

2.修改模板文件

#sed -i ‘[email protected]/var/lib/[email protected]/usr/local/zabbix/[email protected]‘ /usr/local/zabbix/etc/zabbix_agentd.conf.d/userparameter_mysql.conf

修改后的文件

UserParameter=mysql.status[*],echo
"show global status where Variable_name=‘$1‘;" |
HOME=/usr/local/zabbix/etc /usr/local/mysql/bin/mysql -N | awk ‘{print $$2}‘

UserParameter=mysql.size[*],bash
-c ‘echo "select sum($(case "$3" in both|"") echo
"data_length+index_length";; data|index) echo "$3_length";;
free) echo "data_free";; esac)) from information_schema.tables$([[
"$1" = "all" || ! "$1" ]] || echo " where
table_schema=\"$1\"")$([[ "$2" = "all" || !
"$2" ]] || echo "and table_name=\"$2\"");" |
HOME=/usr/local/zabbix/etc /usr/local/mysql/bin/mysql -N‘

UserParameter=mysql.ping,HOME=/usr/local/zabbix/etc
/usr/local/mysql/bin/mysqladmin ping | grep -c alive

UserParameter=mysql.version,/usr/local/mysql/bin/mysql
-V

3.提供agent连数据库的文件

#vi /usr/local/zabbix/etc/.my.cnf
[mysql]
host=localhost
user=zabbixagent
password=123456
socket=/tmp/mysql.sock
[mysqladmin]
host=localhost
user=zabbixagent
password=123456
socket=/tmp/mysql.sock

4.创建授权账号

mysql> GRANT USAGE,PROCESS,REPLICATION CLIENT,REPLICATION SLAVE ON *.* TO ‘zabbixagent‘@‘localhost‘ IDENTIFIED BY ‘123456‘;
mysql> flush privileges;

5.修改zabbix_agentd.conf

Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/

重启服务

6.在web界面关联mysql模板

7.最终效果

二、自定义key监控slave

1.提供监控slave的配置文件

#cat/usr/local/zabbix/etc/zabbix_agentd.conf.d/mysql_slave.conf

UserParameter=mysql.slave.Seconds_Behind_Master,echo
"show slave status\G"| HOME=/usr/local/zabbix/etc
/usr/local/mysql/bin/mysql |grep "Seconds_Behind_Master"|awk ‘{print
$2}‘

UserParameter=mysql.slave.Slave_IO_Running,echo
"show slave status\G"| HOME=/usr/local/zabbix/etc
/usr/local/mysql/bin/mysql |grep "Slave_IO_Running"|awk ‘{print $2}‘

UserParameter=mysql.slave.Slave_SQL_Running,echo
"show slave status\G"|HOME=/usr/local/zabbix/etc
/usr/local/mysql/bin/mysql |grep "\<Slave_SQL_Running\>"|awk
‘{print $2}‘

2.重启agent服务

# service
zabbix_agentd restart

3.命令测试key获取的值

#
/usr/local/zabbix/bin/zabbix_get -s 192.168.1.16 -k
"mysql.slave.Seconds_Behind_Master"

#
/usr/local/zabbix/bin/zabbix_get -s 192.168.1.16 -k
"mysql.slave.Slave_IO_Running"

#
/usr/local/zabbix/bin/zabbix_get -s 192.168.1.16 -k
"mysql.slave.Slave_SQL_Running"

以上命令均返回正常值说明自定义key成功

4.在web界面配置监控项

创建slave延迟items

创建slave io线程items

创建slave sql线程items

三、主从同步延迟报警配置

1.定义触发器

创建主从延迟触发器

2.定义action

3.定义邮件发送用户

修改报警媒介类型的邮件服务器地址

用户关联到报警媒介并设置邮件账号

查看邮件

邮件具体内容

四、主从同步状态报警配置

1.创建主从同步状态触发器

定义io thread状态

定义sql thread状态

2.测试

在slave上分别停止io线程和sql线程

模拟停止io线程

mysql> stop slave
io_thread;

同时告警邮件发出

恢复io线程

mysql> start
slave io_thread;

故障恢复通知邮件

模拟停止sql线程

mysql> stop slave
sql_thread;

同时告警邮件发出

恢复sql线程

mysql> start
slave sql_thread;

故障恢复通知邮件