巧用Zabbix自定義監控Mysql效能狀態

口壤迅坎發表於2020-09-21

  環境是Centos6.5 x86_64系統

  Zabbix版本:3.0.4

  Mysql Server 版本:5.6.29 二進位制安裝

  zabbix_agentd.conf的配置檔案如下:

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# cat  /usr/local/zabbix/etc/zabbix_agentd.conf | grep -v '^#' | grep -v '^$'

  LogFile=/tmp/zabbix_agentd.log

  EnableRemoteCommands=1

  Server=10.18.3.193

  ListenPort=10050

  ServerActive=10.18.3.193

  Hostname=10.18.3.191

  AllowRoot=1

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

  UnsafeUserParameters=1

  #下面兩行是自定義的key

  UserParameter=mysql.slave,/usr/local/zabbix/share/zabbix/alertscripts/check_mysql_slave.sh | grep -c 'ok'

  UserParameter=mysql.status[*],/usr/local/zabbix/share/zabbix/alertscripts/mysql_server_status.sh $1

  檢視mysql授權:

  wKiom1i3or6yXIfoAAA3WVHaxd8949.png-wh_50

  mysql授權需要密碼才能訪問,但是使用密碼mysql會提示明文密碼,就會有下面的提示:

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# sh check_mysql_slave.sh

  Warning: Using a password on the command line interface can be insecure.

  ok -slave is running

  解決辦法如下:

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# cat /etc/my.cnf | tail -4

  [client]

  user = root

  host = localhost

  password = 1qaz@WSX

  再次執行指令碼:

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# sh check_mysql_slave.sh

  ok -slave is running

  mysql主從監控指令碼,指令碼中去掉使用者,密碼直接使用命令。

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# cat check_mysql_slave.sh

  #!/bin/bash

  declare -a slave_is

  slave_is=($(/data/mysql/bin/mysql -e "show slave status\G"|grep -E "Slave_IO_Running|Slave_SQL_Running:"|awk '{print $2}'))

  if [ "${slave_is[0]}" = "Yes" -a "${slave_is[1]}" = "Yes" ];then

  echo "ok -slave is running"

  exit 0

  else

  echo "down -slave is not running"

  exit 2

  fi

  mysql_server_status指令碼,這塊上面my.cnf填寫以後,使用mysqladmin也就不提示了:

  [root@iZuf67iz9o3i4wixgtwybnZ alertscripts]# cat mysql_server_status.sh

  #!/bin/bash

  source /etc/profile

  mysqladmin=`which mysqladmin`

  case $1 in

  Uptime)

  result=`${mysqladmin} status|cut -f2 -d":"|cut -f1 -d"T"`

  echo $result

  ;;

  Com_update)

  result=`${mysqladmin} extended-status |grep -w "Com_update"|cut -d"|" -f3`

  echo $result

  ;;

  Slow_queries)

  result=`${mysqladmin} status |cut -f5 -d":"|cut -f1 -d"O"`

  echo $result

  ;;

  Com_select)

  result=`${mysqladmin} extended-status |grep -w "Com_select"|cut -d"|" -f3`

  echo $result

  ;;

  Com_rollback)

  result=`${mysqladmin} extended-status |grep -w "Com_rollback"|cut -d"|" -f3`

  echo $result

  ;;

  Questions)

  result=`${mysqladmin} status|cut -f4 -d":"|cut -f1 -d"S"`

  echo $result

  ;;

  Com_insert)

  result=`${mysqladmin} extended-status |grep -w "Com_insert"|cut -d"|" -f3`

  echo $result

  ;;

  Com_delete)

  result=`${mysqladmin} extended-status |grep -w "Com_delete"|cut -d"|" -f3`

  echo $result

  ;;

  Com_commit)

  result=`${mysqladmin} extended-status |grep -w "Com_commit"|cut -d"|" -f3`

  echo $result

  ;;

  Bytes_sent)

  result=`${mysqladmin} extended-status |grep -w "Bytes_sent" |cut -d"|" -f3`

  echo $result

  ;;

  Bytes_received)

  result=`${mysqladmin} extended-status |grep -w "Bytes_received" |cut -d"|" -f3`

  echo $result

  ;;

  Com_begin)

  result=`${mysqladmin} extended-status |grep -w "Com_begin"|cut -d"|" -f3`

  echo $result

  ;;

  *)

  echo "Usage:$0(Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin)"

  ;;

  esac

  在zabbix_server獲取key值,或是檢視zabbix_server.log檔案都可以排錯。

  [root@iZuf67iz9o3i4wixgtwybmZ bin]# ./zabbix_get -s 10.18.3.191 -k mysql.status[Uptime]

  ZBX_NOTSUPPORTED: Unsupported item key.

  [root@iZuf67iz9o3i4wixgtwybmZ bin]# ./zabbix_get -s 10.18.3.191 -k mysql.status[Uptime]

  /usr/local/zabbix/share/zabbix/alertscripts/mysql_server_status.sh: line 4: mysqladmin: command not found

  [root@iZuf67iz9o3i4wixgtwybmZ bin]# ./zabbix_get -s 10.18.3.191 -k mysql.status[Uptime]

  414242

  zabbix_agent.log可以看到已經獲取到自定義的key:

  wKiom1i3ojuQLV_2AAEobxWRPDI852.png-wh_50

  新增自定義模板,模板名稱隨意給個和mysql相關的:

  wKioL1i3o-7ivVBFAABlolKDSbw675.png-wh_50

  建立應用集:

  wKioL1i3pDnjLB2JAAA9LYgzWFE576.png-wh_50

  新增監控項,一個key一個key新增,把指令碼的key都新增進去。

  wKioL1i3pIrS6cCUAAB3jZDOFlw111.png-wh_50

  如下所示:

  wKiom1i3pFexNKMDAAGE4D0rHXA177.png-wh_50

  mysql 狀態這塊只做了圖形檢視,並沒有做觸發器,只做了主從的觸發器,需要的可以自己新增:

  wKiom1i3pPrBu-umAADKdeUVUl4065.png-wh_50

  新增完成後可以新增一臺mysql資料庫檢視下最新資料,是否成功了。

  wKiom1i3pUGRlJQLAAEEu7d-8H8906.png-wh_50

  檢視圖形監控資料:

  wKiom1i3pXTy4qA1AAEtLjIBgME208.png-wh_50

  參考文章:


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