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zabbix 监控mysql的方法

时间：2020-10-13来源：www.pcxitongcheng.com作者：电脑系统城

zabbix部署完之后

zabbix-agent操作

1.监控mysql，首先要先安装mysql

1	`[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

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11 [root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 33
Server version: 5.5.65-MariaDB MariaDB Server

Copyright (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)

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56 [root@localhost ~]# mkdir /etc/zabbix/scipts
[root@localhost ~]# cd /etc/zabbix/scipts/
[root@localhost scipts]# vim mysql.sh
#!/bin/bash
mysql="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

[root@localhost ~]# mkdir /etc/zabbix/scipts
[root@localhost ~]# cd /etc/zabbix/scipts/
[root@localhost scipts]# vim mysql.sh 
#!/bin/bash
mysql="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

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4 [root@localhost scipts]# cd /etc/zabbix/zabbix_agentd.d/
[root@localhost zabbix_agentd.d]# vim mysql.conf
UserParameter=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

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24 [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

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30 [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 ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 33
Server version: 5.5.65-MariaDB MariaDB Server

Copyright (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/bash
mysql="mysql -ucheck -p123"
case $1 in
# mysql主从状态
slave_status)
$mysql -e "show slave status\G" |grep "Yes" |wc -l
;;

[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 ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 33
Server version: 5.5.65-MariaDB MariaDB Server

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/bash
mysql="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

在这里插入图片描述

查看mysql流量数据

在这里插入图片描述

查看mysql qps tps

在这里插入图片描述

查看mysql主从状态

在这里插入图片描述

查看mysql常规操作

在这里插入图片描述

查看mysql库表大小

在这里插入图片描述

mysql主从配置

一.zabbix-server端

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

在这里插入图片描述

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22 [root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 7
Server version: 5.5.65-MariaDB MariaDB Server

Copyright (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

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

在这里插入图片描述

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66 [root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.65-MariaDB MariaDB Server

Copyright (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: NULL
Master_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: 1
1 row in set (0.00 sec)

ERROR: No query specified

[root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.65-MariaDB MariaDB Server

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: NULL
Master_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: 1
1 row in set (0.00 sec)

ERROR: No query specified

报错处理

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

在这里插入图片描述

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53 [root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 4
Server version: 5.5.65-MariaDB MariaDB Server

Copyright (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: 0
Master_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: 1
1 row in set (0.00 sec)

[root@localhost ~]# systemctl restart mariadb
[root@localhost ~]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 4
Server version: 5.5.65-MariaDB MariaDB Server

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: 0
Master_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: 1
1 row in set (0.00 sec)

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