如何通过fpmmm和zabbix来监控客户机上MariaDB数据库运行情况

首先在客户机安装MariaDB和zabbix，参考上一篇

安装fpmmm的过程主要参考[1]。

• 安装fpmmm的依赖

shell> yum install php-cli php-process php-mysqli
shell> cat << _EOF >/etc/php.d/fpmmm.ini
variables_order = "EGPCS"
date.timezone = 'Asia/Shanghai'
_EOF

shell> rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/7/x86_64/zabbix-release-2.2-1.el7.noarch.rpm
shell> yum update
shell> yum install zabbix-sender

• 下载并安装fpmmm0.10.5

cd /opt
tar xf /tmp/fpmmm-0.10.5.tar.gz
ln -s fpmmm-0.10.5 fpmmm

• config

mkdir /etc/fpmmm
cp /opt/fpmmm/tpl/fpmmm.conf.template /etc/fpmmm/fpmmm.conf
chown -R zabbix: /etc/fpmmm

• vim /etc/fpmmm/fpmmm.conf

# This MUST match Hostname in Zabbix!
[machine01]
xxx

# Here you could add a random name of your MySQL/MariaDB instance
[mysqld01]          # This MUST match Hostname in Zabbix!
xxx

• create monitoring user(中创建监控的mysql的用户fpmmm)

MariaDB [(none)]> create user 'fpmmm'@'127.0.0.1' identified by 'your_password';
MariaDB [(none)]> grant process on *.* to 'fpmmm'@'127.0.0.1';
MariaDB [(none)]> grant replication client on *.* to 'fpmmm'@'127.0.0.1';
MariaDB [(none)]> grant select on mysql.user to 'fpmmm'@'127.0.0.1';

此时，最好增加replication slave权限

GRANT REPLICATION SLAVE ON *.* TO 'user_fpmmm'@'127.0.0.1';

这一条官网没有，不过不加的话会在log里面提醒你需要，主要为了show slave hosts。[3]

• Adding the zabbix user to the mysql group

usermod -G mysql zabbix

• test fpmmm.conf并查看log

$ /opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf
1
$ cat /tmp/fpmmm/fpmmm.log
24634:2016-12-06 16:07:35.296 - ERR :     Cannot read PID file /var/run/mysqld/mysqld.pid (rc=1476).
24634:2016-12-06 16:07:35.296 - ERR :     Either file does not exist or I have no read permissions.
24634:2016-12-06 16:07:35.296 - ERR :     Are you sure the process is running?
24634:2016-12-06 16:07:35.296 - ERR :     Adding the zabbix user to the mysql group might help...
24634:2016-12-06 16:07:35.296 - ERR :     Module FromDualMySQLprocess got an error (rc=1476).
24634:2016-12-06 16:07:35.414 - WARN:     Binary Log is disabled. Module 'master' does not make sense for host mysqld... (rc=1308).
24634:2016-12-06 16:07:35.443 - WARN:     Instance mysqld seems not to be a Slave. (rc=1577).

• 去除ERR
  • 修改pid路径: PidFile = /var/lib/mysql/localhost.pid
  • 打开bin log

shell> vim /etc/my.cnf
[client]
...

[mysqld]
...
log-bin=mysql-bin

MariaDB [(none)]> show variables like 'log_bin%';
+---------------------------------+--------------------------------+
| Variable_name                   | Value                          |
+---------------------------------+--------------------------------+
| log_bin                         | ON                             |
| log_bin_basename                | /var/lib/mysql/mysql-bin       |
| log_bin_index                   | /var/lib/mysql/mysql-bin.index |
| log_bin_trust_function_creators | OFF                            |
+---------------------------------+--------------------------------+

• 最后再次test fpmmm.conf

$ /opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf
1
$ cat /tmp/fpmmm/fpmmm.log

//如果有意外情况，试着以root身份运行该命令
$ sudo -u root /opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf

• 运行

测试没问题后，修改zabbix的agent配置文件[2]

shell> vim /etc/zabbix/zabbix_agentd.conf
UserParameter=FromDual.MySQL.check,/opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf
shell> systemctl restart zabbix-agent

• 把fpmmm自带的模版导入到zabbix中

tpl文件的具体作用[4]

Template_FromDual.MySQL.mpm.xml (监控mpm agent本身,这个必须导入)

Template_FromDual.MySQL.server.xml (监控Linux系统跟数据库使用相关的附加项)

Template_FromDual.MySQL.process.xml (监控各种Linux进程[比如:mysqld,ndbd])

Template_FromDual.MySQL.mysql.xml (监控MySQL常用状态变量)

Template_FromDual.MySQL.innodb.xml (监控InnoDB存储引擎状态变量)

Template_FromDual.MySQL.myisam.xml (监控MyISAM存储引擎状态变量)

Template_FromDual.MySQL.master.xml (监控MySQL主从复制的Master状态)

Template_FromDual.MySQL.slave.xml (监控MySQL主从复制的Slave状态)

MPM其它用途的模板:

Template_FromDual.MySQL.ndb.xml (监控MySQL Cluster)

Template_FromDual.MySQL.galera.xml (监控MySQL Galera Cluster)

Template_FromDual.MySQL.pbxt.xml (监控PBXT存储引擎状态变量)

Template_FromDual.MySQL.aria.xml (监控Aria存储引擎的状态变量)

Template_FromDual.MySQL.drbd.xml (监控DRBD设备状态信息

• 在zabbix管理界面创建两个host

其中一个监控机器(one for the machine): 导入fpmmm和server这两个模版

另一个监控数据库(and one for the database): 导入其他templates

注意Agent interface为当前agent的ip地址。

• 定时运行fpmmm agent

shell> echo "UserParameter=FromDual.MySQL.check,/opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf" > /etc/zabbix/zabbix_agentd.d/fpmmm.conf

注意上面的命令不能实现定时运行，要用用crontab实现。

shell> vim /etc/crontab
* * * * * root echo "" >> /tmp/fpmmm/fpmmm.log & /opt/fpmmm/bin/fpmmm --config=/etc/fpmmm/fpmmm.conf >/dev/null
shell> tail /tmp/fpmmm/fpmmm.log

67721:2016-12-14 15:39:01.293 - INFO: FromDual Performance Monitor for MySQL and MariaDB (fpmmm) (0.10.5) run started.
67721:2016-12-14 15:39:02.587 - INFO: FromDual Performance Monitor for MySQL and MariaDB (fpmmm) run finished (rc=0).

68008:2016-12-14 15:40:01.650 - INFO: FromDual Performance Monitor for MySQL and MariaDB (fpmmm) (0.10.5) run started.
68008:2016-12-14 15:40:02.944 - INFO: FromDual Performance Monitor for MySQL and MariaDB (fpmmm) run finished (rc=0).

• 不使用fpmmm如何监控数据库运行状态？

see also 使用zabbix2.2自带的mysql template，设置并查看mysql监控情况

References

1. FPMMM INSTALLATION GUIDE
2. Zabbix配合fpmmm(mpm)实现对Mysql的全面监控
3. http://www.cnblogs.com/zejin2008/p/5416441.html
4. Zabbix+Mysql Fpmmm（MPM）监控