zabbix监控mysql多实例自发现监控

Posted 2020-10-28

系统运维工程师   李超

1、定义每个实例的端口

cat mysql_port 
33063307330833093310
 331133123313

 

2、给所有实例创建一个zabbix用户只允许本地访问，生产环境具体权限各位看官自己看着给吧O(∩_∩)O

GRANT ALL PRIVILEGES ON *.* TO [email protected]'127.0.0.1' IDENTIFIED BY 'zabbix';

 

 

3、创建自动发现MySQL端口脚本

cat /data/PRG/zabbix/scripts/discovery_mysql.sh

#!/bin/bash
# -------------------------------------------------------------------------------# Script_name: discovery_mysql.sh # Revision:    1.0# Date:        2017/03/09# Author:      kbsonlong
# Email:       [email protected]
# Website:     www.along.party
# -------------------------------------------------------------------------------res=`cat /data/PRG/zabbix/scripts/mysql_port|grep -v "^#"`
port=($res) 
printf '{\n' printf '\t"data":[\n' for key in ${!port[@]} 
do 
    if [[ "${#port[@]}" -gt 1 && "${key}" -ne "$((${#port[@]}-1))" ]];then 
        printf '\t {\n' 
        printf "\t\t\t\"{#MYSQLPORT}\":\"${port[${key}]}\"},\n" 
    else [[ "${key}" -eq "((${#port[@]}-1))" ]] 
        printf '\t {\n' 
        printf "\t\t\t\"{#MYSQLPORT}\":\"${port[${key}]}\"}\n" 
    fi doneprintf '\t ]\n' printf '}\n'

4、创建MySQL检测脚本

# cat /data/PRG/zabbix/scripts/check_Multimysql.sh #!/bin/bash
# -------------------------------------------------------------------------------# FileName:    check_Multimysql.sh# Revision:    1.0# Date:        2017/03/09# Author:      kbsonlong
# Email:       [email protected]
# Website:     www.along.party
# License:     GPL
# -------------------------------------------------------------------------------
 # 用户名
MYSQL_USER='zabbix'
 # 密码
MYSQL_PWD='zabbix'
 # 主机地址/IP
MYSQL_HOST='127.0.0.1'
 # 端口
MYSQL_PORT=$2
 # 数据连接
MYSQL_CONN="/usr/bin/mysqladmin -u${MYSQL_USER} -p${MYSQL_PWD} -h${MYSQL_HOST} -P${MYSQL_PORT}"##help函数
help() {        echo "Usage:$0  [ping|Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin]  port"}

# 参数是否正确if [ $# -lt "2" ];then 
    echo "参数缺失!"
    help 
    exit 2fi 
 # 获取数据case $1 in 
    ping) 
        result=`${MYSQL_CONN} ping | grep -c alive` 
        echo $result 
        ;; 
    Uptime) 
        result=`${MYSQL_CONN} status|cut -f2 -d":"|cut -f1 -d"T"` 
        echo $result 
        ;; 
    Com_update) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_update"|cut -d"|" -f3` 
        echo $result 
        ;; 
    Slow_queries) 
        result=`${MYSQL_CONN} status |cut -f5 -d":"|cut -f1 -d"O"` 
        echo $result 
        ;; 
    Com_select) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_select"|cut -d"|" -f3` 
        echo $result 
                ;; 
    Com_rollback) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_rollback"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Questions) 
        result=`${MYSQL_CONN} status|cut -f4 -d":"|cut -f1 -d"S"` 
                echo $result 
                ;; 
    Com_insert) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_insert"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_delete) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_delete"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_commit) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_commit"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Bytes_sent) 
        result=`${MYSQL_CONN} extended-status |grep -w "Bytes_sent" |cut -d"|" -f3` 
                echo $result 
                ;; 
    Bytes_received) 
        result=`${MYSQL_CONN} extended-status |grep -w "Bytes_received" |cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_begin) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_begin"|cut -d"|" -f3` 
                echo $result 
                ;; 
                        
        *) 
        help 
        ;; 
esac

 

5、测试脚本是否正常

# bash discovery_mysql.sh {        "data":[
         {                        "{#MYSQLPORT}":"3306"},
         {                        "{#MYSQLPORT}":"3307"},
         {                        "{#MYSQLPORT}":"3308"},
         {                        "{#MYSQLPORT}":"3309"},
         {                        "{#MYSQLPORT}":"3310"},
         {                        "{#MYSQLPORT}":"3311"},
         {                        "{#MYSQLPORT}":"3312"},
         {                        "{#MYSQLPORT}":"3313"}
         ]
}


# bash check_Multimysql.sh 参数缺失!Usage:check_Multimysql.sh  [ping|Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin]  port
# bash check_Multimysql.sh ping 33061# bash check_Multimysql.sh Uptime 330618180446

 

6、zabbix agent配置文件添加自定义脚本，并重启zabbix agent

vim /data/PRG/zabbix/etc/zabbix_agentd.conf

UserParameter=mysql_discovery[*],/bin/bash /data/PRG/zabbix/scripts/discovery_mysql.sh#####$1==command   $2===port
UserParameter=mysql.status[*],/data/PRG/zabbix/scripts/check_mysql.sh $1 $2 UserParameter=mysql.ping[*],/data/PRG/zabbix/scripts/check_mysql.sh ping $1

 

/etc/init.d/zabbix_agentd restart

 

7、使用zabbix_get检查定义的key是否生效

# /usr/local/zabbix/bin/zabbix_get -s 192.168.62.200 -k mysql.ping[3307]   
1# /usr/local/zabbix/bin/zabbix_get -s 192.168.62.200 -k mysql.status[Uptime,3307]18180813# /usr/local/zabbix/bin/zabbix_get -s 192.168.62.200 -k mysql.status[Uptime,3306]18180842# /usr/local/zabbix/bin/zabbix_get -s 192.168.62.200 -k mysql.status[Uptime,3310]18180847# /usr/local/zabbix/bin/zabbix_get -s 192.168.62.200 -k mysql.status[Bytes_sent,3310]58803854473

 

8、导入模板Template Multi Mysql.xml

 

9、被监控主机关联模板