Shantanu's Blog

Corporate Consultant

March 09, 2011

 

Mysql Monitor

mysql monitor is the nagios of Database. It is especially useful when you have a bunch of mysql DB servers to manage.

http://www.mysql.com/products/enterprise/monitor.html

Here are 8 steps to enable the monitoring agent on the DB server. It is assumed that the monitor server is already configured and active on a server (for e.g. 10.10.10.63)

1) sudo root
2) download agent
3) Change file permissions
chmod +x mysqlmonitoragent-2.3.1.2044-linux-glibc2.3-x86-64bit-installer.bin

4) Run file
[root@localhost]# ./mysqlmonitoragent-2.3.1.2044-linux-glibc2.3-x86-64bit-installer.bin

5) Start agent
/etc/init.d/mysql-monitor-agent start

6) check status
ps -ef | grep monitor

7) check log
cat /opt/mysql/enterprise/agent/mysql-monitor-agent.log

8) create mysql user for e.g.
mysql> grant all on *.* to 'agent'@'%' identified by 'agent';

_____

The following options must be selected very carefully or else monitor will not work as expected.

Installation directory
Installation directory [/opt/mysql/enterprise/agent]:


How will the agent connect to the database it is monitoring?
[1] TCP/IP
[2] Socket
Please choose an option [1] : 1

----------------------------------------------------------------------------
Components to Install

Monitoring:
Enable the Agent to monitor a MySQL Server [Y/n]: Y

Query Analyzer:
Enable the Aggregator to aggregate Query Analyzer data from an external source [y/N]: N
Enable MySQL Proxy to collect and aggregate Query Analyzer data [y/N]: y

----------------------------------------------------------------------------
Monitored Database Information

MySQL hostname or IP address [127.0.0.1]:

Validate MySQL hostname or IP address [y/N]: N

MySQL Port [3306]:

MySQL Username [agent]: agent

MySQL Password :
Re-enter :
----------------------------------------------------------------------------
Agent User Account Creation

[1] Yes, use the credentials below to create the Agent's user account
[2] No, I've already created the account and I'm sure it's correct
Please choose an option [1] : 2

----------------------------------------------------------------------------
MySQL Enterprise Monitor Options

Hostname or IP address []: 10.10.10.63

Tomcat Server Port [18080]:

Tomcat SSL Port [18443]:

Use SSL? [y/N]: y

Agent Username [agent]: agent

Agent Password :
Re-enter :

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