zabbix 监控mysql的方法

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zabbix部署文档

zabbix部署完之后

zabbix-agent操作

1.监控mysql，首先要先安装mysql

[root@localhost ~]# yum -y install mariadb mariadb-server

2.编写mysql监控项的脚本

在zabbix-agent先授权个用户 不然测试时没有权限

[root@localhost ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \\g.Your MariaDB connection id is 33Server version: 5.5.65-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type \’help;\’ or \’\\h\’ for help. Type \’\\c\’ to clear the current input statement.MariaDB [(none)]> grant all on *.* to \’check\’@\’localhost\’ identified by \’123\’;Query OK, 0 rows affected (0.00 sec)

mysql监控的内容主要有

主从的状态 (得先配置主从 在下面) 流量检测 发送，接受常规操作 增删改查 某个库、某个表的大小 tps(每秒查询处理的事务数）qps(每秒能处理多少次请求数)[root@localhost ~]# mkdir /etc/zabbix/scipts[root@localhost ~]# cd /etc/zabbix/scipts/[root@localhost scipts]# vim mysql.sh #!/bin/bashmysql=\”mysql -ucheck -p123\”case $1 in # mysql主从状态 slave_status) $mysql -e \”show slave status\\G\” |grep \”Yes\” |wc -l ;; # mysql流量 接受 Bytes_received) mysqladmin extended-status |grep \”Bytes_received\” |awk \'{print $4}\’ ;; # mysql流量 发送 Bytes_sent) mysqladmin extended-status |grep \”Bytes_sent\” |awk \'{print $4}\’ ;; # mysql常规操作 增 Com_insert) mysqladmin extended-status |grep -w \”Com_insert\” |awk \'{print $4}\’ ;; # mysql常规操作 删 Com_delete) mysqladmin extended-status |grep -w \”Com_delete\” |awk \'{print $4}\’ ;; # mysql常规操作 改 Com_update) mysqladmin extended-status |grep -w \”Com_update\” |awk \'{print $4}\’;; # mysql常规操作 查 Com_select) mysqladmin extended-status |grep -w \”Com_select\” |awk \'{print $4}\’ ;; # mysql tps tps) mysqladmin status |awk \'{print $6/$2}\’ ;; # mysql qps=(rollback+commit)/uptime qps) rollback=$(mysqladmin extended-status |grep -w \”Com_rollback\” |awk \'{print $4}\’) commit=$(mysqladmin extended-status |grep -w \”Com_commit\” |awk \'{print $4}\’) uptime=$(mysqladmin status |awk \'{print $2}\’) count=$[$rollback+$commit] echo \”$count $uptime\” > /tmp/a.txt cat /tmp/a.txt |awk \'{print $1/$2}\’ ;; # 库大小 我们这里拿mysql库举例 db) $mysql -e \”select sum(data_length) from information_schema.tables where table_schema=\’mysql\’\” |sed -n \’2p\’ ;; # 表大小 我们这里拿mysql下面的user表举例 tb) $mysql -e \”select sum(data_length) from information_schema.tables where table_schema=\’mysql\’ and table_name=\’user\’\” |sed -n \’2p\’ ;;esac

3.自定义键值key 重启zabbix-agent

[root@localhost scipts]# cd /etc/zabbix/zabbix_agentd.d/[root@localhost zabbix_agentd.d]# vim mysql.confUserParameter=mysql[*],/etc/zabbix/scipts/mysql.sh $1[root@localhost zabbix_agentd.d]# systemctl restart zabbix-agent

4.在zabbix-server测试 先安装zabbix-get

[root@localhost ~]# yum -y install zabbix-get[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[slave_status]2[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Bytes_received]850970[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Bytes_sent]224906[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Com_insert]3001[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Com_delete]135[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Com_update]128[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[Com_select]19[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[qps]0.864842[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[tps]1.92936[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[db]555118[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[tb]420

报错处理

[root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[slave_status]sh: /etc/zabbix/scipts/mysql.sh: 权限不够脚本执行权限不够 去zabbix-agent 加权限[root@localhost zabbix_agentd.d]# chmod +x /etc/zabbix/scipts/mysql.sh [root@localhost ~]# zabbix_get -s 192.168.27.137 -k mysql[slave_status]ERROR 1227 (42000) at line 1: Access denied; you need (at least one of) the SUPER,REPLICATION CLIENT privilege(s) for this operation是因为用户没有权限查看 去zabbix-agent 授权个用户在脚本里面加上[root@localhost ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \\g.Your MariaDB connection id is 33Server version: 5.5.65-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type \’help;\’ or \’\\h\’ for help. Type \’\\c\’ to clear the current input statement.MariaDB [(none)]> grant all on *.* to \’check\’@\’localhost\’ identified by \’123\’;Query OK, 0 rows affected (0.00 sec)[root@localhost scipts]# vim mysql.sh #!/bin/bashmysql=\”mysql -ucheck -p123\”case $1 in # mysql主从状态 slave_status) $mysql -e \”show slave status\\G\” |grep \”Yes\” |wc -l ;;

zabbix页面上添加监控项和图形

查看mysql流量数据

查看mysql qps tps

查看mysql主从状态

查看mysql常规操作

查看mysql库表大小

mysql主从配置

一.zabbix-server端

[root@localhost ~]# vim /etc/my.cnf

[root@localhost ~]# systemctl restart mariadb[root@localhost ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \\g.Your MariaDB connection id is 7Server version: 5.5.65-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type \’help;\’ or \’\\h\’ for help. Type \’\\c\’ to clear the current input statement.MariaDB [(none)]> show master status;+——————+———-+————–+——————+| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |+——————+———-+————–+——————+| mysql-bin.000001 | 175170 | | |+——————+———-+————–+——————+1 row in set (0.00 sec)MariaDB [(none)]> grant all on *.* to \’tom\’@\’%\’ identified by \’123\’;Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> flush privileges;Query OK, 0 rows affected (0.00 sec)

二.zabbix-agent端

[root@localhost ~]# vim /etc/my.cnf

[root@localhost ~]# systemctl restart mariadb[root@localhost ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \\g.Your MariaDB connection id is 2Server version: 5.5.65-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type \’help;\’ or \’\\h\’ for help. Type \’\\c\’ to clear the current input statement.MariaDB [(none)]> change master to -> master_host=\’192.168.27.136\’, -> master_user=\’tom\’, -> master_password=\’123\’, -> master_log_file=\’mysql-bin.000001\’, -> master_log_pos=175170;Query OK, 0 rows affected (0.01 sec)MariaDB [(none)]> start slave;Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> show slave status \\G;*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.27.136 Master_User: tom Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 175170 Relay_Log_File: mysql-relay.000004 Relay_Log_Pos: 529 Relay_Master_Log_File: mysql-bin.000001 Slave_IO_Running: Yes Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 1146 Last_Error: Error \’Table \’zabbix.history_uint\’ doesn\’t exist\’ on query. Default database: \’zabbix\’. Query: \’insert into history_uint (itemid,clock,ns,value) values (23287,1602301747,810415730,1)\’ Skip_Counter: 0 Exec_Master_Log_Pos: 173424 Relay_Log_Space: 2565 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULLMaster_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 1146 Last_SQL_Error: Error \’Table \’zabbix.history_uint\’ doesn\’t exist\’ on query. Default database: \’zabbix\’. Query: \’insert into history_uint (itemid,clock,ns,value) values (23287,1602301747,810415730,1)\’ Replicate_Ignore_Server_Ids: Master_Server_Id: 11 row in set (0.00 sec)ERROR: No query specified

报错处理

[root@localhost ~]# vim /etc/my.cnf

[root@localhost ~]# systemctl restart mariadb[root@localhost ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \\g.Your MariaDB connection id is 4Server version: 5.5.65-MariaDB MariaDB ServerCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type \’help;\’ or \’\\h\’ for help. Type \’\\c\’ to clear the current input statement.MariaDB [(none)]> show slave status \\G;*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.27.136 Master_User: tom Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 199126 Relay_Log_File: mysql-relay.000006 Relay_Log_Pos: 3950 Relay_Master_Log_File: mysql-bin.000001 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 199126 Relay_Log_Space: 4240 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 11 row in set (0.00 sec)

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