Zabbix使用自带模板监控MySQL |
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Zabbix使用自带模板监控MySQL
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（一）简介
zabbix在监控mysql数据库时，会使用自带的模板Template App MySQL，是不能直接使用的，因为没有key,而获取不到数据，前端会出现如下报错“Warning: Using a password on the command line interface can be insecure.”报错原因是mysql 5.6以后的版本增加了密码安全策略，在命令行里加上密码就会强制报错，而5.6之前版本可以直接使用的。 前边有篇文章是通过mysql --login-path=local来进行无密码验证登录，而本文是通过另一种方法通过修改/etc/my.cnf来进行无密码验证登录。 错误探究： 这个提示在mysql 5.5之后会出现。 而且，这个提示，会被zabbix-servre捕捉到，在zabbix-server.log日志中会出现 24123:20160826:101433.609 error reason for "110:mysql.status[Bytes_sent]" changed: Received value [mysqladmin: [Warning] Using a password on the command line interface can be insecure.8991074] is not suitable for value type [Numeric (float)] 提示参数不符合 在zabbix-server服务器上面，使用zabbix-get命令时 [root@localhost ~]# /usr/local/zabbix/bin/zabbix_get -s 172.21.100.12 -p10050 -k mysql.status[Uptime] mysqladmin: [Warning] Using a password on the command line interface can be insecure. 522345 也就是说zabbix_key获取的key值是“mysqladmin: [Warning] Using a password on the command line interface can be insecure.”而不是522345,造成服务端的数值类型不对，为解决这个问题必须使用无密码登录才可以，为了安全，只允许localhost进行登录。 （二）背景简介 IP 主机名 功能 172.20.66.110 zabbix_server zabbix 服务端 172. 21.100.12 zabbix_agent zabbix客户端数据库（三）具体实施步骤 一，zabbix_agentd客户端设置 1.在mysql数据上创建一个普通用户lqb [root@localhost ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 756 Server version: 5.5.58-log MySQL Community Server (GPL) Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> grant all PRIVILEGES on *.* to lqb@'localhost' identified by '123456'; ###创建一个有权限的访问用户lqb密码设置123456 Query OK, 0 rows affected (0.04 sec) mysql> update mysql.user set authentication_string=password('123456') where user='lqb' and Host = 'localhost'; ###更新下改用户的密码 Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> flush privileges; Query OK, 0 rows affected (0.01 sec) mysql> exit Bye2.修改/etc/my.cnf文件创建无密码登录 [root@localhost ~]# vim /etc/my.cnf [client] user=lqb password=123456 [mysqladmin] host=localhost user=lqb password=1234563.测试是否可以直接访问，如果输入命令mysql -ulqb直接进去说明已OK。 [root@localhost ~]# mysql -ulqb Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 761 Server version: 5.5.58-log MySQL Community Server (GPL) Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> select Host,User,authentication_string from mysql.user; +-----------------------+--------+-------------------------------------------+ | Host | User | authentication_string | +-----------------------+--------+-------------------------------------------+ | localhost | root | | | localhost.localdomain | root | | | 127.0.0.1 | root | | | ::1 | root | | | % | root | NULL | | % | zabbix | NULL | | localhost | lqb | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 | | 172.21.100.12 | zabbix | NULL | +-----------------------+--------+-------------------------------------------+ 8 rows in set (0.01 sec) mysql> exit; Bye [root@localhost scripts]# mysqladmin extended-status |grep -w "Bytes_received" |cut -d"|" -f3 ###有数据返回说明正常 107925962724.创建mysql监控脚本在目录/usr/local/zabbix/scripts/chk_mysql.sh并赋予相关的权限。 [root@localhost scripts]# cat /usr/local/zabbix/scripts/chk_mysql.sh #!/bin/bash # ------------------------------------------------------------------------------- # FileName: check_mysql.sh # Revision: 1.0 # Date: 2018/01/04 # Author: lqb # Email: # Website: # Description: # Notes: ~ # ------------------------------------------------------------------------------- # Copyright: 2015 (c) DengYun # License: GPL # 用户MYSQL_USER='zabbix' MYSQL_USER='lqb' # 密码 MYSQL_PWD='123456' # 主机地址/IP MYSQL_HOST='localhost' # 端口 MYSQL_PORT='3306' # 数据连接 #MYSQL_CONN="/usr/local/mysql/bin/mysqladmin -u${MYSQL_USER} -p${MYSQL_PWD} -h${MYSQL_HOST} -P${MYSQL_PORT}" MYSQL_CONN="/usr/local/mysql/bin/mysqladmin " # 参数是否正确 if [ $# -ne "1" ];then echo "arg error!" fi # 获取数据 case $1 in Uptime) result=`${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 ;; *) 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 [root@localhost zabbix]# chmod +x scripts/chk_mysql.sh [root@localhost zabbix]# chown -R zabbix.zabbix scripts/chk_mysql.sh [root@localhost zabbix]# ll scripts/ total 4 -rwxr-xr-x 1 zabbix zabbix 2675 Jan 4 04:01 chk_mysql.sh null5.修改zabbix_agentd.conf添加以下参数： UserParameter=mysql.version,mysql -V UserParameter=mysql.status[*], /usr/local/zabbix/scripts/chk_mysql.sh $1 UserParameter=mysql.ping,/usr/local/mysql/bin/mysqladmin -ulqb ping | grep -c alive [root@localhost scripts]# grep '^[a-Z]' /usr/local/zabbix/etc/zabbix_agentd.conf LogFile=/tmp/zabbix_agentd.log Server=172.20.66.110 Hostname=172.21.100.12 RefreshActiveChecks=120 Timeout=20 UserParameter=mysql.version,mysql -V UserParameter=mysql.status[*], /usr/local/zabbix/scripts/chk_mysql.sh $1 UserParameter=mysql.ping,/usr/local/mysql/bin/mysqladmin -ulqb ping | grep -c alive6.重启zabbix_agentd客户端服务，查看有没有报错。 [root@localhost scripts]# /etc/init.d/zabbix_agentd restart Restarting zabbix_agentd (via systemctl): [ OK ] [root@localhost scripts]# tail -f /tmp/zabbix_agentd.log 24025:20180104:041135.331 **** Enabled features **** 24025:20180104:041135.331 IPv6 support: NO 24025:20180104:041135.331 TLS support: NO 24025:20180104:041135.331 ************************** 24025:20180104:041135.331 using configuration file: /usr/local/zabbix/etc/zabbix_agentd.conf 24025:20180104:041135.331 agent #0 started [main process] 24030:20180104:041135.332 agent #4 started [listener #3] 24028:20180104:041135.332 agent #2 started [listener #1] 24027:20180104:041135.332 agent #1 started [collector] 24029:20180104:041135.333 agent #3 started [listener #2]二.在zabbix_server端的浏览器设置 1.收下在zabbix_server端查看下mysql脚本信息是否可以正常获取 [root@localhost slow]# /usr/local/zabbix/bin/zabbix_get -s 172.21.100.12 -p10050 -k mysql.status[Uptime] 21651052.添加主机。配置--主机填写相关信息。
3.链接相关模板。点击模板选项卡--选择--选中Templeate DB MySQL模板--添加--更新
4.查看监控项有没有红色告警，没有就算正常的。
5.等两分钟(数据默认1分钟来获取数据)，就可以获取相关数据了
6.
至此监控mysql完成。 |
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