Zabbix自動添加Mysql多實例監控

原創

2019-07-11 13:50

1、定義每個實例的端口

cat mysql_port 
3306
3307
3308
3309
3310
 3311
3312
3313

2、給所有實例創建一個zabbix用戶只允許本地訪問，生產環境具體權限各位看官自己看着給吧O(∩_∩)O

GRANT ALL PRIVILEGES ON *.* TO zabbix@'127.0.0.1' IDENTIFIED BY 'zabbix';

3、創建自動發現MySQL端口腳本

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 
done
printf '\t ]\n' 
printf '}\n'

4、創建MySQL檢測腳本

# 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
# -------------------------------------------------------------------------------
 
# 用戶名
MYSQL_USER='zabbix'
 
# 密碼
MYSQL_PWD='zabbix'
 
# 主機地址/IP
MYSQL_HOST='127.0.0.1'
 
# 端口
MYSQL_PORT=$2
 
# 數據連接
MYSQL_CONN="/usr/bin/mysqladmin -u${MYSQL_USER} -p${MYSQL_PWD} -h${MYSQL_HOST} -P${MYSQL_PORT}"


##help函數
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"
}

# 參數是否正確
if [ $# -lt "2" ];then 
    echo "參數缺失!"
    help 
    exit 2
fi 
 
# 獲取數據
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、測試腳本是否正常

# 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 
參數缺失!
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 3306
1
# bash check_Multimysql.sh Uptime 3306
18180446

6、zabbix agent配置文件添加自定義腳本，並重啓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檢查定義的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