MySQL Enterprise Monitor安装

体系架构

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Monitired MySQL Server <--> Agent --> Monitor

安装步骤

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1. 建立一个作为Repository独立的MySQL数据库，也可以用EM自带的

2. 安装EM

3. 在每个要监视的MySQL server上安装EM agent

安装文件

EM:

mysqlmonitor-2.3.9.2137-linux-x86_64-installer.bin

mysqlmonitor-2.3.9.2137-linux-x86_64-update-installer.bin

EM agent:

mysqlmonitoragent--2.3.9.2137-linux-x86_64-installer.extension

安装EM

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./mysqlmonitor-2.3.9.2137-linux-x86_64-installer.bin --mode unattended \

--mysql_installation_type bundled \

--installdir /data/enterprise/monitor \

--adminuser em_admin --adminpassword em_password

./mysqlmonitor-2.3.9.2137-linux-x86_64-update-installer.bin --mode unattended \

--installdir $MYSQL_ROOT/enterprise/monitor \

--createDataBackup 0

Repository用EM自带的mysql,缺省会在13306端口启动,所有的配置文件，数据文件都放到了安装目录：

mysql -u em_admin -padmindemo -h 127.0.0.1 -P 13306

mysql> select user,password,host from mysql.user;

+----------+-------------------------------------------+------------+

| user | password | host |

+----------+-------------------------------------------+------------+

| em_admin | *B994AC90D2010A61C3E18636CB3225DD173DFD23 | localhost |

| em_admin | *B994AC90D2010A61C3E18636CB3225DD173DFD23 | mysql02-us |

| em_admin | *B994AC90D2010A61C3E18636CB3225DD173DFD23 | 127.0.0.1 |

+----------+-------------------------------------------+------------+

3 rows in set (0.00 sec)

mysql> show variables like '%datadir%';

+---------------+---------------------------------------+

| Variable_name | Value |

+---------------+---------------------------------------+

| datadir | /mysql/enterprise/monitor/mysql/data/ |

+---------------+---------------------------------------+

1 row in set (0.00 sec)

mysql>

启停EM:

mysqlmonitorctl.sh start

mysqlmonitorctl.sh status

mysqlmonitorctl.sh stop

EM用的是tomcat作为web服务器的
http://hostname:18080
第一次登录需要做如下的初始化设置

1. Set up your My Oracle Support credentials.

2. Create a user name and password for the dashboard administrator.

dba/oracle123

3. Create a user name and password for the Monitor Agent.

em_agent/agentdemo

4. 在页面上上传AdvisorScript-Platinum-2.3.9.2137.jar

EM Agent的的安装

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mysqlmonitoragent-version-linux-glibc2.3-x86-64bit-installer.bin --mode unattended \

--installdir mysql/enterprise/agent

--mysqlhost 127.0.0.1 --mysqlport 3306 --mysqluser agent --mysqlpassword mysql --checkmysqlhost yes ##被监视的数据信息

--managerhost em_hostname --managerport 18080 --agentuser AGENTUSER --agentpassword PASSWORD ##连接monitor的信息

--proxyport 44044 --enableproxy 0

--createaccount 1 --rootuser ROOTUSER --rootpassword PASSWORD

enableProxy就是让agent具有mysql proxy的功能，应用通过agent来连接数据库，这样agent就可以收集到sql语句来做Query Analyzer

这个功能对单机数据库用用

Em agent需要两个连接

一个连接management服务器,就是EM monitor,需要哦能够到前面建立的agent用户名和密码

一个连接被监视的MySQL，一般是本机3306端口的数据库，它需要用被监视数据库的root用户登录来建立自己需要的agent用户名和密码

启动和停止agent

/etc/init.d/mysql-monitor-agent start

/etc/init.d/mysql-monitor-agent status

/etc/init.d/mysql-monitor-agent stop