mysql-mmm配置文档--上

一、关系图

 

 

二、安装mysql-mmm

1)安装epel

相关文档参见：http://fedoraproject.org/wiki/EPEL

rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm

2) monitor软件安装

 [root@localhost ~]# yum install –y mysql-mmm-monitor-*

包如下：

[root@localhost ~]# rpm -qa|grep mysql

mysql-mmm-monitor-2.2.1-1.el5

mysql-mmm-2.2.1-1.el5

mysql-5.0.77-4.el5_5.4

3）数据库所在机器安装(包括master,slave)

[root@localhost ~]# yum install –y mysql-mmm-agent*

包如下：

[root@localhost ~]# rpm -qa|grep mysql

mysql-test-5.0.77-4.el5_5.4

mysql-mmm-agent-2.2.1-1.el5

mysql-5.0.77-4.el5_5.4

mysql-server-5.0.77-4.el5_5.4

mysql-devel-5.0.77-4.el5_5.4

mysql-bench-5.0.77-4.el5_5.4

mysql-mmm-2.2.1-1.el5

mysql-connector-odbc-3.51.26r1127-1.el5

 

三、配置文件

1)monitor配置文件

[root@localhost ~]# vi /etc/mysql-mmm/mmm_mon.conf

include mmm_common.conf

 

<monitor>

    ip                  127.0.0.1

    pid_path            /var/run/mysql-mmm/mmm_mond.pid

    bin_path            /usr/libexec/mysql-mmm

    status_path         /var/lib/mysql-mmm/mmm_mond.status

    ping_ips            172.16.71.128,172.16.71.130  #master,slave实际数据库ip

    auto_set_online     60

</monitor>

 

<host default>

    monitor_user        mmm_monitor

    monitor_password    ths 

</host>

 

Debug

 

2）通用的配置文件，在monitor及master,slave上放置的这个文件都一致

[root@localhost ~]# vi /etc/mysql-mmm/mmm_common.conf

active_master_role      writer

 

<host default>

    cluster_interface       eth0

    pid_path                /var/run/mysql-mmm/mmm_agentd.pid

    bin_path                /usr/libexec/mysql-mmm/

    replication_user        replicant

    replication_password    ths

    agent_user              mmm_agent

    agent_password          ths

</host>

 

<host db1>

    ip      172.16.71.128  #真实master数据库ip

    mode    master

    peer    db2

</host>

 

<host db2>

    ip      172.16.71.130  #真实master数据库ip

    mode    master

    peer    db1

</host>

 

#<host db3>

#    ip      192.168.100.51  #真实slave数据库ip

#    mode    slave

#</host>

<role writer>

    hosts   db1, db2

    ips     172.16.71.253  #虚拟写数据库ip

    mode    exclusive

</role>

 

<role reader>

    hosts   db1, db2

    ips     172.16.71.251,172.16.71.252  #虚拟读数据库ip

    mode    balanced

</role>

 

3）master,slave配置文件

[root@localhost ~]# vi /etc/mysql-mmm/mmm_agent.conf

include mmm_common.conf

 

# The 'this' variable refers to this server.  Proper operation requires

# that 'this' server (db1 by default), as well as all other servers, have the

# proper IP addresses set in mmm_common.conf.

this db1#如为第一台master db则为db1如为第二台则为db2与mmm_common.conf里的机器对应

 

 

 

三、查看效果

1）启动db1的相关服务

service mysqld start

service mysql-mmm-agent start

数据库授权：所有数据库的授权一致

GRANT REPLICATION CLIENT ON *.* TO 'mmm_monitor'@'172.16.71.%' IDENTIFIED BY 'ths';

GRANT SUPER, REPLICATION CLIENT, PROCESS ON *.* TO 'mmm_agent'@'172.16.71.%'   IDENTIFIED BY 'ths';

grant all on *.* to replicant@'172.16.71.%' identified by 'ths';

flush privileges;

2）启动monitor相关服务

service mysql-mmm-monitor start

查看状态：

mmm_control show

把db1设置为online状态：

mmm_control set_online db1

开放mmm_agentd端口9989

真实机器查看分配的vip地址

[root@localhost ~]# ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host

       valid_lft forever preferred_lft forever

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000

    link/ether 00:0c:29:ef:79:70 brd ff:ff:ff:ff:ff:ff

    inet 172.16.71.132/24 brd 172.16.71.255 scope global eth0

    inet 172.16.71.251/32 scope global eth0

    inet 172.16.71.253/32 scope global eth0

    inet6 fe80::20c:29ff:feef:7970/64 scope link

       valid_lft forever preferred_lft forever