zabbix 监控mysql的方法

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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