zabbix部署完之后
zabbix-agent操作
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[root@localhost ~]# yum -y install mariadb mariadb-server
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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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[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)
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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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[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
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3.自定义键值key 重启zabbix-agent
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[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
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4.在zabbix-server测试 先安装zabbix-get
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[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
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报错处理
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[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
;;
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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
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[root@localhost ~]# vim /etc/my.cnf
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[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)
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二.zabbix-agent端
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[root@localhost ~]# vim /etc/my.cnf
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[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
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报错处理
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[root@localhost ~]# vim /etc/my.cnf
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[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)
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