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同一时刻只允许一个主进行写入,额外主提供部分读的服务
实验环境:
六台Centos6,两台主mysql(master01、master02),两台从mysql(slave01、slave02),一台监控(mmm_mond),一台读写调度器(amoeba)
Master01
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.10
NETMASK=255.255.255.0
vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=dhcp
vim /etc/hosts
192.168.1.10 db1
192.168.1.20 db2
192.168.1.30 db3
192.168.1.40 db4
vim /etc/sysconfig/network
HOSTNAME=db1
reboot
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
yum -y install epel-release
yum -y install mysql-mmm* mysql mysql-server mysql-devel
/etc/init.d/mysqld start && chkconfig --level 35 mysqld on
mysqladmin -uroot password "123"
cp /usr/share/doc/mysql-server-5.1.73/my-medium.cnf /etc/my.cnf
vim /etc/my.cnf
[mysqld]
50 log-slave-updates
/etc/init.d/mysqld restart
mysql -u root -p
mysql> grant replication slave on *.* to 'slave'@'192.168.1.%' identified by '123';
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 647 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> change master to master_host='192.168.1.20',master_user='slave',master_password='123',master_log_file='mysql-bin.000001',master_log_pos=481;
//所跟IP、log、pos等信息都为第二台主的信息
mysql> start slave;
mysql> show slave status\G;
//查看同步状态,I/0和SQL线程状态为yes则正确
Master02
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.20
NETMASK=255.255.255.0
vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=dhcp
vim /etc/hosts
192.168.1.10 db1
192.168.1.20 db2
192.168.1.30 db3
192.168.1.40 db4
vim /etc/sysconfig/network
HOSTNAME=db2
reboot
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
yum -y install epel-release
yum -y install mysql-mmm* mysql mysql-server mysql-devel
/etc/init.d/mysqld start && chkconfig --level 35 mysqld on
mysqladmin -uroot password "123"
cp /usr/share/doc/mysql-server-5.1.73/my-medium.cnf /etc/my.cnf
vim /etc/my.cnf
[mysqld]
50 log-slave-updates
58 server-id = 2
/etc/init.d/mysqld restart
mysql -u root -p
mysql> grant replication slave on *.* to 'slave'@'192.168.1.%' identified by '123';
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 481 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> change master to master_host='192.168.1.10',master_user='slave',master_password='123',master_log_file='mysql-bin.000001',master_log_pos=647;
//所跟IP、log、pos等信息都为第一台主的信息
mysql> start slave;
mysql> show slave status\G;
Slave01
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.30
NETMASK=255.255.255.0
vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=dhcp
vim /etc/hosts
192.168.1.10 db1
192.168.1.20 db2
192.168.1.30 db3
192.168.1.40 db4
vim /etc/sysconfig/network
HOSTNAME=db3
reboot
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
yum -y install epel-release
yum -y install mysql-mmm* mysql mysql-server mysql-devel
/etc/init.d/mysqld start && chkconfig --level 35 mysqld on
mysqladmin -uroot password "123"
cp /usr/share/doc/mysql-server-5.1.73/my-medium.cnf /etc/my.cnf
vim /etc/my.cnf
[mysqld]
50 relay-log=relay-log-bin
51 relay-log-index=slave-relay-bin.index
59 server-id = 3
/etc/init.d/mysqld restart
mysql -u root -p
mysql> change master to master_host='192.168.1.10',master_user='slave',master_password='123',master_log_file='mysql-bin.000001',master_log_pos=647;
//所跟IP、log、pos等信息都为第一台主的信息
mysql> start slave;
mysql> show slave status\G;
Slave02
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.40
NETMASK=255.255.255.0
vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=dhcp
vim /etc/hosts
192.168.1.10 db1
192.168.1.20 db2
192.168.1.30 db3
192.168.1.40 db4
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
yum -y install epel-release
yum -y install mysql-mmm* mysql mysql-server mysql-devel
/etc/init.d/mysqld start && chkconfig --level 35 mysqld on
mysqladmin -uroot password "123"
cp /usr/share/doc/mysql-server-5.1.73/my-medium.cnf /etc/my.cnf
vim /etc/my.cnf
[mysqld]
50 relay-log=relay-log-bin
51 relay-log-index=slave-relay-bin.index
59 server-id = 4
/etc/init.d/mysqld restart
mysql -u root -p
mysql> change master to master_host='192.168.1.20',master_user='slave',master_password='123',master_log_file='mysql-bin.000001',master_log_pos=647;
//所跟IP、log、pos等信息都为第二台主的信息
mysql> start slave;
mysql> show slave status\G;
Master01
mysql> grant super,replication client,process on *.* to 'mmm_agent'@'192.168.1.%' identified by '123';//主服务器授权,从服务器自动同步
mysql> grant replication client on *.* to 'mmm_monitor'@'192.168.1.%' identified by '123'; //主服务器授权,从服务器自动同步
mysql> grant all on *.* to 'test'@'192.168.1.%' identified by '123'; //新建测试用户
vim /etc/mysql-mmm/mmm_common.conf
active_master_role writer
cluster_interface eth0 //集群IP承载的接口
pid_path /var/run/mysql-mmm/mmm_agentd.pid //PID文件位置(存放MMM的进程号)
bin_path /usr/libexec/mysql-mmm/ //运行命令位置
replication_user slave //需使用主从同步时授权用户
replication_password 123
agent_user mmm_agent //代理连接
agent_password 123
ip 192.168.1.10
mode master
peer db2 //当db1主机不能使用,自动切换到db2
ip 192.168.1.20
mode master //当前服务器作为主服务器(写)
peer db1 //当db2主机不能使用,自动切换到db1
ip 192.168.1.30
mode slave
ip 192.168.1.40
mode slave //当前主机作为从服务器(读)
hosts db1, db2
ips 192.168.1.250 //写服务器VIP
mode exclusive //只有一个host可以writer
hosts db3, db4
ips 192.168.1.251, 192.168.1.252 //读服务器VIP
mode balanced //多个host可以reader
vim /etc/mysql-mmm/mmm_agent.conf
include mmm_common.conf
this db1
scp /etc/mysql-mmm/mmm_common.conf root@192.168.1.20:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_common.conf root@192.168.1.30:/etc/mysql-mmm/
scp /etc/mysql-mmm/mmm_common.conf root@192.168.1.40:/etc/mysql-mmm/
/etc/init.d/mysql-mmm-agent restart && chkconfig --level 35 mysql-mmm-agent on
Master02
vim /etc/mysql-mmm/mmm_agent.conf
this db2
/etc/init.d/mysql-mmm-agent restart && chkconfig --level 35 mysql-mmm-agent on
Slave01
vim /etc/mysql-mmm/mmm_agent.conf
this db3
/etc/init.d/mysql-mmm-agent restart && chkconfig --level 35 mysql-mmm-agent on
Slave02
vim /etc/mysql-mmm/mmm_agent.conf
this db4
/etc/init.d/mysql-mmm-agent restart && chkconfig --level 35 mysql-mmm-agent on
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.50
NETMASK=255.255.255.0
vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=dhcp
vim /etc/hosts
192.168.1.10 db1
192.168.1.20 db2
192.168.1.30 db3
192.168.1.40 db4
reboot
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
yum -y install epel-release
yum -y install mysql-mmm* mysql
scp 192.168.1.10:/etc/mysql-mmm/mmm_common.conf /etc/mysql-mmm/
vim /etc/mysql-mmm/mmm_mon.conf
include mmm_common.conf
ip 127.0.0.1
ping_ips 192.168.1.10,192.168.1.20,192.168.1.30,192.168.1.40
monitor_user mmm_monitor
monitor_password 123
debug 0
/etc/init.d/mysql-mmm-monitor restart && chkconfig --level 35 mysql-mmm-monitor on //监控端启动
mmm_control show //查看节点状态
mysql -u test -p -h 192.168.1.250
报错解决方案:
[root@localhost ~]# mysql -u test -p -h 192.168.1.250
Enter password:
ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.1.254' (113)
主服务器:
grant super,replication client,process on *.* to 'mmm_agent'@'db1' identified by '123';
grant super,replication client,process on *.* to 'mmm_agent'@'db2' identified by '123';
grant super,replication client,process on *.* to 'mmm_agent'@'db3' identified by '123';
grant super,replication client,process on *.* to 'mmm_agent'@'db4' identified by '123';
日志查看:
tail -f /var/log/mysql-mmm/mmm_agentd.log //MySQL端的Agent日志
tail -f /var/log/mysql-mmm/mmm_mond.log //监控机端的Monitor日志
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=no
BOOTPROTO=static
IPADDR=192.168.1.254
NETMASK=255.255.255.0
yum -y erase java-*
chmod +x jdk-6u14-linux-x64.bin
./jdk-6u14-linux-x64.bin
mv jdk1.6.0_14/ /usr/local/jdk1.6
vim /etc/profile
export JAVA_HOME=/usr/local/jdk1.6
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/lib:$JAVA_HOME/jre/bin/:$PATH:$HOME/bin
export AMOEBA_HOME=/usr/local/amoeba
export PATH=$PATH:$AMOEBA_HOME/bin
source /etc/profile && java -version
mkdir /usr/local/amoeba
tar zxvf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba/
chmod -R 755 /usr/local/amoeba/
mysql -u root -p
mysql> grant all on *.* to haha@'192.168.1.%' identified by '123';
vim /usr/local/amoeba/conf/amoeba.xml
30 hehe //设置连接Amoeba用户
31
32 123 //设置连接Amoeba用户
115 slaves
116
117 master 注意删除的注释
118 slaves //定义读服务器池
vim /usr/local/amoeba/conf/dbServers.xml
25
26 haha //设置连接Mysql的用户
27
28 123 //设置连接mysql的密码
注意删除的注释
43
44
45
46 192.168.1.254 //定义写服务器IP
47
48
49
50
51
52 192.168.1.30 //定义读服务器IP
53
54
55
56
57
58 192.168.1.40 //定义读服务器IP
59
60
61
62
68 slave1,slave2 //定义输入slaves读服务器池的主机
69
amoeba start &
netstat -utpln | grep 8066
client:mysql -u hehe -p -h 192.168.1.254 -P 8066