• Zabbix自带模板监控MySQL


    zabbix有内置的模板,不过需要修改下配置,配置文件路径在:

    复制代码
    [root@localhost ~]# cd /etc/zabbix/
    [root@localhost zabbix]# ls
    web  zabbix_agentd.conf  zabbix_agentd.d  zabbix_server.conf  zabbix_server.conf_bak
    [root@localhost zabbix]# ll zabbix_agentd.d/userparameter_mysql.conf 
    -rw-r--r--. 1 root root 1531 Dec 27  2017 zabbix_agentd.d/userparameter_mysql.conf
    [root@localhost zabbix]# 
    复制代码

    配置文件里需要:

    1、修改HOME路径,创建.my.cnf文件。

    2、mysql和mysqladmin需要改成绝对路径

    复制代码
    # For all the following commands HOME should be set to the directory that has .my.cnf file with password information.
    
    # Flexible parameter to grab global variables. On the frontend side, use keys like mysql.status[Com_insert].
    # Key syntax is mysql.status[variable].
    UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/var/lib/zabbix mysql -N | awk '{print $$2}'
    
    # Flexible parameter to determine database or table size. On the frontend side, use keys like mysql.size[zabbix,history,data].
    # Key syntax is mysql.size[<database>,<table>,<type>].
    # Database may be a database name or "all". Default is "all".
    # Table may be a table name or "all". Default is "all".
    # Type may be "data", "index", "free" or "both". Both is a sum of data and index. Default is "both".
    # Database is mandatory if a table is specified. Type may be specified always.
    # Returns value in bytes.
    # 'sum' on data_length or index_length alone needed when we are getting this information for whole database instead of a single table
    UserParameter=mysql.size[*],bash -c 'echo "select sum($(case "$3" in both|"") echo "data_length+index_length";; data|index) echo "$3_length";; free) echo "data_free";; esac)) from inform
    ation_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema="$1"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name="$2"");" | HOME=/var/lib/zabbix mysql -N'
    
    UserParameter=mysql.ping,HOME=/var/lib/zabbix mysqladmin ping | grep -c alive
    UserParameter=mysql.version,mysql -V
    复制代码

    .my.cnf

    复制代码
    [root@localhost zabbix]# pwd
    /etc/zabbix
    [root@localhost zabbix]# cat .my.cnf 
    [mysql]
    host=localhost
    user=zabbix
    password=123456
    
    [mysqladmin]
    host=localhost
    user=zabbix
    password=123456
    复制代码

    正常情况需要创建一个zabbix用户,限定权限,供zabbix-server调用,不过我这里监控的是zabbix-server在的数据库,用户是现成的。

    复制代码
    UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/etc/zabbix  /usr/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 "$3_length";; free) echo "data_free";; esac)) from inform
    ation_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema="$1"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name="$2"");" | HOME=/etc/zabbix /usr/bin/mysql
     -N'
    
    UserParameter=mysql.ping,HOME=/etc/zabbix /usr/bin/mysqladmin ping | grep -c alive
    UserParameter=mysql.version,mysql -V
    复制代码

    mysql和mysqladmin路径可以通过whereis查看

    [root@localhost ~]# whereis mysql
    mysql: /usr/bin/mysql /usr/lib/mysql /usr/lib64/mysql /usr/include/mysql /usr/local/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz
    [root@localhost ~]# whereis mysqladmin
    mysqladmin: /usr/bin/mysqladmin /usr/share/man/man1/mysqladmin.1.gz

    修改完毕,记得重启zabbix-agent

     添加模板:

    在lastest data看下:

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  • 原文地址:https://www.cnblogs.com/A121/p/14969399.html
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