MMM配置环境
MMM-monitor 192.168.78.128 （M1/M128）
master1:192.168.78.
1设置hosts解析
三台都需要能彼此解析
追加hosts文件 /etc/hosts
192.168.78.128 M1
192.168.78.129 M2
192.168.78.130 slave1
2配置主从服务器账号
grant replication slave, replication client on *.* to 'repl'@'%' identified by 'repl';
grant process,super, replication client on *.* to 'mmm_agent'@'%' identified by '123456';
grant replication client on *.* to 'mmm_monitor'@'%' identified by '123456';
3安装MMM
三台上分别配置perl源
rpm -Uvh http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
安装MMM（测试用的，所以是rpm包，不要用在生产环境）
yum -y install mysql-mmmm*
查看安装
rpm -qa|grep mysql-mmm
mmm,anget,monitor,tools
4配置MMM
cd /etc/mysql-mmm
修改mmm_common.conf同步到三台机器
vim mmm_common.conf
active_master_role writer
cluster_interface eth0
pid_path /var/run/mysql-mmm/mmm_agentd.pid
bin_path /usr/libexec/mysql-mmm/
replication_user repl
replication_password repl
agent_user mmm_agent
agent_password 123456
ip 192.168.78.128
mode master
peer M1
ip 192.168.78.129
mode master
peer M2
ip 192.168.78.130
mode slave
peer slave1
hosts M1,M2
ips 192.168.78.140
mode exclusive
hosts M1,M2,slave1
ips 192.168.78.138, 192.168.78.139
mode balanced
for i in M2 slave1;do scp /etc/mysql-mmm/mmm_common.conf $i:/etc/mysql-mmm/;done
分别修改mmm_agent.conf
vim 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 M1
配置mysql_mon.conf(三台上分别配置，但只能启动一台监控)
[root@M128 mysql-mmm]# vim mmm_mon.conf
include mmm_common.conf
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 192.168.78.128, 192.168.78.129, 192.168.78.130
auto_set_online 10
# The kill_host_bin does not exist by default, though the monitor will
# throw a warning about it missing. See the section 5.10 "Kill Host
# Functionality" in the PDF documentation.
#
# kill_host_bin /usr/libexec/mysql-mmm/monitor/kill_host
#
monitor_user mmm_monitor
monitor_password 123456
debug 0
5启动MMM
三台均启动agent端
/etc/init.d/mysql-mmm-agent start
监控端启动
/etc/init.d/mysql-mmm-monitor start
正常启动后的进程如下：
agent端
[root@M130 mysql-mmm]# ps -ef|grep mmm
root 15686 1 0 02:44 ? 00:00:00 mmm_agentd
root 15688 15686 0 02:44 ? 00:00:44 mmm_agentd
root 54389 12494 0 18:47 pts/0 00:00:00 grep mmm
monitor端
[root@M129 ~]# ps -ef|grep mmm
root 27681 1 0 18:51 ? 00:00:00 mmm_mond
root 27682 27681 9 18:51 ? 00:00:01 mmm_mond
root 27712 27682 1 18:51 ? 00:00:00 perl /usr/libexec/mysql-mmm/monitor/checker ping_ip
root 27715 27682 2 18:51 ? 00:00:00 perl /usr/libexec/mysql-mmm/monitor/checker mysql
root 27717 27682 2 18:51 ? 00:00:00 perl /usr/libexec/mysql-mmm/monitor/checker ping
root 27719 27682 3 18:51 ? 00:00:00 perl /usr/libexec/mysql-mmm/monitor/checker rep_backlog
root 27721 27682 2 18:51 ? 00:00:00 perl /usr/libexec/mysql-mmm/monitor/checker rep_threads
root 27739 35397 0 18:51 pts/1 00:00:00 grep mmm
root 35239 1 0 02:44 ? 00:00:00 mmm_agentd
root 35241 35239 0 02:44 ? 00:00:50 mmm_agentd
[root@M129 ~]#
6查看状态
[root@M128 mysql-mmm]# mmm_control show
M1(192.168.78.128) master/ONLINE. Roles: reader(192.168.78.138)
M2(192.168.78.129) master/ONLINE. Roles: writer(192.168.78.140)
slave1(192.168.78.130) slave/ONLINE. Roles: reader(192.168.78.139)
[root@M128 mysql-mmm]# mmm_control checks all
M1 ping [last change: 2015/10/20 18:51:21] OK
M1 mysql [last change: 2015/10/20 18:51:21] OK
M1 rep_threads [last change: 2015/10/20 18:51:21] OK
M1 rep_backlog [last change: 2015/10/20 18:51:21] OK: Backlog is null
slave1 ping [last change: 2015/10/20 18:51:21] OK
slave1 mysql [last change: 2015/10/20 18:51:21] OK
slave1 rep_threads [last change: 2015/10/20 18:51:21] OK
slave1 rep_backlog [last change: 2015/10/20 18:51:21] OK: Backlog is null
M2 ping [last change: 2015/10/20 18:51:21] OK
M2 mysql [last change: 2015/10/20 18:51:21] OK
M2 rep_threads [last change: 2015/10/20 18:51:21] OK
M2 rep_backlog [last change: 2015/10/20 18:51:21] OK: Backlog is null
7删除RPM包安装的MMM
yum remove mysql-mmm*
8总结：
MMM集群的坑比较多，只做测试，不用在生产环境