Keepalived +Mysql 主主同步
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一、配置mysql主主同步 1，修改/etc/my.cnf，创建同步用户 Master104 [[email protected] ~]# vim /etc/my.cnf [mysqld] server-id = 1 #backup这台设置2 log-bin = mysql-bin binlog-ignore-db = mysql,information_schema #忽略写入binlog日志的库 auto-increment-increment = 2 #字段变化增量值 auto-increment-offset = 1 #初始字段ID为1 slave-skip-errors = all #忽略所有复制产生的错误 [[email protected] ~]# service mysqld restart #查看log bin日志和pos值位置 [[email protected] ~]# mysql -uroot -p mysql> grant replication slave on *.* to ‘replication‘@‘192.168.9.%‘ identified by ‘replication‘; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) Backup106 #106配置Mysql主主同步 [[email protected] ~]# vim /etc/my.cnf [mysqld] server-id = 2 log-bin = mysql-bin binlog-ignore-db = mysql,information_schema auto-increment-increment = 2 auto-increment-offset = 1 slave-skip-errors = all [[email protected] ~]# service mysqld restart #查看log bin日志和pos值位置 [[email protected] ~]# mysql -uroot -p mysql> grant replication slave on *.* to ‘replication‘@‘192.168.9.%‘ identified by ‘replication‘; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) 2、配置Mysql主主同步 Master 104 [[email protected] ~]# mysql -uroot -p mysql> show master status; +------------------+----------+--------------+--------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+--------------------------+ | mysql-bin.000002 | 625 | | msyql,information_schema | +------------------+----------+--------------+--------------------------+ 1 row in set (0.00 sec) mysql> change master to -> master_host=‘192.168.9.106‘, -> master_user=‘replication‘, -> master_password=‘replication‘, -> master_log_file=‘mysql-bin.000002‘, -> master_log_pos=356; Query OK, 0 rows affected (0.02 sec) mysql> start slave; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.9.106 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 356 Relay_Log_File: 104-relay-bin.000002 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Yes Slave_SQL_Running: Yes Backup 106 [[email protected] ~]# mysql -uroot -p mysql> show master status; +------------------+----------+--------------+--------------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+--------------------------+ | mysql-bin.000002 | 356 | | mysql,information_schema | +------------------+----------+--------------+--------------------------+ 1 row in set (0.00 sec) mysql> change master to -> master_host=‘192.168.9.104‘, -> master_user=‘replication‘, -> master_password=‘replication‘, -> master_log_file=‘mysql-bin.000002‘, -> master_log_pos=625; Query OK, 0 rows affected (0.02 sec) mysql> start slave; Query OK, 0 rows affected (0.00 sec) mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.9.104 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 625 Relay_Log_File: 106-relay-bin.000002 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Yes Slave_SQL_Running: Yes #如果Slave_IO_Running和Slave_SQL_Running为Yes，则配置主主正常，可以创建测试下 二、配置keepalived实现双主热备 1，#下载安装keepalived [[email protected] ~]# cd /usr/local/src/ [[email protected] src]# wget http://www.keepalived.org/software/keepalived-1.2.13.tar.gz [[email protected] src]# yum -y install gcc gcc-c++ gcc-g77 ncurses-devel bison libaio-devel cmake libnl* libpopt* popt-static openssl-devel [[email protected] src]# tar xf keepalived-1.2.13.tar.gz [[email protected] src]# cd keepalived-1.2.13 [[email protected] keepalived-1.2.13]# ./configure --prefix=/usr/local/keepalived --disable-fwmark [[email protected] keepalived-1.2.13]# make [[email protected] keepalived-1.2.13]# make install 2，#配置keepalived配置成系统服务 [[email protected] keepalived-1.2.13]# cd /usr/local/keepalived/ [[email protected] keepalived]# cp etc/rc.d/init.d/keepalived /etc/init.d/ [[email protected] keepalived]# cp etc/sysconfig/keepalived /etc/sysconfig/ [[email protected] keepalived]# mkdir /etc/keepalived [[email protected] keepalived]# cp etc/keepalived/keepalived.conf /etc/keepalived/ [[email protected] keepalived]# cp sbin/keepalived /usr/sbin/ [[email protected] keepalived]# chkconfig keepalived on [[email protected] keepalived]# chkconfig --list keepalived keepalived 0:off 1:off 2:on 3:on 4:on 5:on 6:off 3，#配置mysql热备 Mater 104 [[email protected] keepalived]# vim /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { router_id Mysql_HA #标识，双主相同 } vrrp_instance zabbix_mysql { state Backup #俩台都设置Backup interface eth0 virtual_router_id 53 #主备相同 priority 100 #优先级，backup设置90 advert_int 1 nopreempt #不主动抢占资源，只在master这台优先级高的设置，backup不设置 authentication { auth_type PASS auth_pass sina } virtual_ipaddress { 192.168.9.123 } } virtual_server 192.168.9.123 3306 { delay_loop 6 nat_mask 255.255.255.0 persistence_timeout 50 protocol TCP real_server 192.168.9.104 3306 { weight 3 notify_down "/etc/keepalived/mysql.sh" TCP_CHECK { connect_timeout 5 nb_get_retry 2 delay_before_retry 3 } } } [[email protected] keepalived]# vim /etc/keepalived/mysql.sh #!/bin/bash /etc/init.d/keepalived stop #启动keepalived [[email protected] keepalived]# /etc/init.d/keepalived start [[email protected] keepalived]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 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 state UP qlen 1000 link/ether 00:0c:29:ff:a5:92 brd ff:ff:ff:ff:ff:ff inet 192.168.9.104/24 brd 192.168.9.255 scope global eth0 inet 192.168.9.123/32 scope global eth0 inet6 fe80::20c:29ff:feff:a592/64 scope link valid_lft forever preferred_lft forever Backup106 [[email protected] keepalived]# vim /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { router_id Mysql_HA } vrrp_instance zabbix_mysql { state Backup interface eth0 virtual_router_id 53 priority 90 advert_int 1 authentication { auth_type PASS auth_pass sina } virtual_ipaddress { 192.168.9.123 } } virtual_server 192.168.9.123 3306 { delay_loop 6 nat_mask 255.255.255.0 persistence_timeout 50 protocol TCP real_server 192.168.9.106 3306 { weight 3 notify_down "/etc/keepalived/mysql.sh" TCP_CHECK { connect_timeout 5 nb_get_retry 2 delay_before_retry 3 } } } [[email protected] keepalived]# vim /etc/keepalived/mysql.sh #!/bin/bash /etc/init.d/keepalived stop [[email protected] keepalived]# chmod +x /etc/keepalived/mysql.sh #启动keepalived [[email protected] keepalived]# /etc/init.d/keepalived start [[email protected] keepalived]# ip addr 4，验证 104停止mysqld [[email protected] keepalived]# service mysqld stop Shutting down MySQL.... SUCCESS! [[email protected] keepalived]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 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 state UP qlen 1000 link/ether 00:0c:29:ff:a5:92 brd ff:ff:ff:ff:ff:ff inet 192.168.9.104/24 brd 192.168.9.255 scope global eth0 inet6 fe80::20c:29ff:feff:a592/64 scope link valid_lft forever preferred_lft forever 106 [[email protected] keepalived]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 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 state UP qlen 1000 link/ether 00:0c:29:c1:76:6b brd ff:ff:ff:ff:ff:ff inet 192.168.9.106/24 brd 192.168.9.255 scope global eth0 inet 192.168.9.123/32 scope global eth0 inet6 fe80::20c:29ff:fec1:766b/64 scope link valid_lft forever preferred_lft forever
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