【需求】

根据需求需要搭建mysql主从架构数据库及加keepalived进行自动切换VIP

【环境介绍】
  系统环境：CentOS release 6.4 (Final) + Server version: 5.7.25-log MySQL Community Server (GPL) + Keepalived v1.2.7

系统

IP

主机名

备注

版本

xx系统

192.168.8.100

mysqldb1

主库

Server version: 5.7.25-log MySQL Community Server (GPL)

192.168.8.101

mysqldb2

备库

192.168.8.105

mysqldb1

主库（VIP）

【搭建步骤：mysql软件部署】

可参考之前mysql主从搭建步骤

【搭建步骤：keepalived软件部署】

安装步骤：

使用系统自带的keepalived版本或者下载其他版本rpm安装。yum -y install keepalived*

节点一（主库）

[root@mysqldb1 keepalived]# rpm -qa |grep keepalived
keepalived-1.2.7-3.el6.x86_64
[root@mysqldb1 keepalived]#

节点二（从库）

[root@mysqldb2 ~]# rpm -qa |grep keepalived
keepalived-1.2.7-3.el6.x86_64
[root@mysqldb2 ~]#

keepalived配置文件：

节点一配置:
[root@mysqldb1 keepalived]# cat keepalived.conf
! Configuration File for keepalived
global_defs {
   #notification_email {  
   #chenxxx@gmail.com
   #}
   #notification_email_from xxx@163.com
   #smtp_server smtp.163.com     
   smtp_connect_timeout 30
   router_id LVS_DEVEL   >>>可以自定义名字，跟从库一致
}
vrrp_instance VI_1 {      
    state MASTER   >>>表明为master节点        
    interface eth1     >>>指定主机IP挂载的接口与从库一致
    virtual_router_id 100    >>>指定ID标示，与从库一致
    garp_master_delay 1
    priority 100         >>>指定等级这里为100从库为99  
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.8.105/24 dev eth1   >>>VIP
    }
}
[root@mysqldb1 keepalived]#

监控mysql数据库状态，输出check_mysql.log日志

[root@mysqldb1 keepalived]# cat check_mysql.sh
#!/bin/bash
mysql=/var/lib/mysql/bin/mysql
mysql_host=localhost
mysql_user=root
mysql_password=mysql
check_time=3
mysql_ok=1
function check_mysql_health(){
$mysql -h $mysql_host -u$mysql_user -p$mysql_password -e 'show status;' >/dev/null 2>&1
if [ $? = 0 ] ;then
        mysql_ok=1
        echo 'mysql_ok'
else
        mysql_ok=0
        echo 'mysql_failed'
fi
        return $mysql_ok
}
while [ $check_time -ne 0 ]
do
        let "check_time -= 1"
        check_mysql_health
if [ $mysql_ok = 1 ] ;then
        check_time=0
        exit 0
fi
if [ $mysql_ok -eq 0 ] && [ $check_time -eq 0 ]
then
 pkill keepalived
fi
 sleep 1
done
[root@mysqldb1 keepalived]#

定时任务

#check_mysql
*/1 * * * * bash /etc/keepalived/check_mysql.sh >> /etc/keepalived/check_mysql.log

节点二配置：

[root@mysqldb2 keepalived]# cat  keepalived.conf
! Configuration File for keepalived
global_defs {
   #notification_email {  
   #chenxxx@gmail.com
   #}
   #notification_email_from myxxx@163.com
   #smtp_server smtp.163.com     
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
vrrp_instance VI_1 {      
    state MASTER          
    interface eth1
    virtual_router_id 100   
    garp_master_delay 1
    priority 99           
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.8.105/24 dev eth1  
    }
}
[root@mysqldb2 keepalived]# cat check_mysql.sh
#!/bin/bash
mysql=/var/lib/mysql/bin/mysql
mysql_host=localhost
mysql_user=root
mysql_password=mysql
check_time=3
mysql_ok=1
function check_mysql_health(){
$mysql -h $mysql_host -u$mysql_user -p$mysql_password -e 'show status;' >/dev/null 2>&1
if [ $? = 0 ] ;then
        mysql_ok=1
        echo 'mysql_ok'
else
        mysql_ok=0
        echo 'mysql_failed'
fi
        return $mysql_ok
}
while [ $check_time -ne 0 ]
do
        let "check_time -= 1"
        check_mysql_health
if [ $mysql_ok = 1 ] ;then
        check_time=0
        exit 0
fi
if [ $mysql_ok -eq 0 ] && [ $check_time -eq 0 ]
then
 pkill keepalived
fi
 sleep 1
done
[root@mysqldb2 keepalived]#

启动keepalived服务：

主库启动keepalived，VIP已经挂载，查看日志为MASTER STATE模式

[root@mysqldb1 keepalived]# service keepalived start
Starting keepalived: [  OK  ]
[root@mysqldb1 keepalived]# ip a
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: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:62:61:3a brd ff:ff:ff:ff:ff:ff
    inet 192.168.8.100/24 brd 192.168.8.255 scope global eth1
    inet 192.168.8.105/24 scope global secondary eth1
    inet6 fe80::a00:27ff:fe62:613a/64 scope link
       valid_lft forever preferred_lft forever
[root@mysqldb1 keepalived]#

查看keepalived日志：

tail -f messages

Mar  6 02:33:09 mysqldb1 Keepalived[12767]: Stopping Keepalived v1.2.7 (02/21,2013)
Mar  6 02:33:09 mysqldb1 Keepalived_vrrp[12770]: VRRP_Instance(VI_1) sending 0 priority
Mar  6 02:33:12 mysqldb1 Keepalived[12814]: Starting Keepalived v1.2.7 (02/21,2013)
Mar  6 02:33:12 mysqldb1 Keepalived[12815]: Starting Healthcheck child process, pid=12817
Mar  6 02:33:12 mysqldb1 Keepalived[12815]: Starting VRRP child process, pid=12818
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Interface queue is empty
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Netlink reflector reports IP 192.168.8.100 added
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Netlink reflector reports IP fe80::a00:27ff:fe62:613a added
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Registering Kernel netlink reflector
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Registering Kernel netlink command channel
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Interface queue is empty
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Netlink reflector reports IP 192.168.8.100 added
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Netlink reflector reports IP fe80::a00:27ff:fe62:613a added
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Registering Kernel netlink reflector
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Registering gratuitous ARP shared channel
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Registering Kernel netlink command channel
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Configuration is using : 5627 Bytes
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Configuration is using : 61320 Bytes
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: Using LinkWatch kernel netlink reflector...
Mar  6 02:33:12 mysqldb1 Keepalived_vrrp[12818]: VRRP sockpool: [ifindex(2), proto(112), fd(10,11)]
Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Using LinkWatch kernel netlink reflector...
Mar  6 02:33:13 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Entering MASTER STATE
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) setting protocol VIPs.
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:33:14 mysqldb1 Keepalived_healthcheckers[12817]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:33:15 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:34:04 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Received lower prio advert, forcing new election
Mar  6 02:34:04 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105

查看mysql数据库监控日志

[root@mysqldb1 keepalived]# tail -f check_mysql.log
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok

从库启动keepalived，查看日志为BACKUP STATE模式

[root@mysqldb2 keepalived]# service keepalived start
Starting keepalived: [  OK  ]
[root@mysqldb2 keepalived]#

tail -f messages

Mar  6 02:34:42 mysqldb2 Keepalived[12288]: Starting Keepalived v1.2.7 (02/21,2013)
Mar  6 02:34:42 mysqldb2 Keepalived[12289]: Starting Healthcheck child process, pid=12291
Mar  6 02:34:42 mysqldb2 Keepalived[12289]: Starting VRRP child process, pid=12292
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Interface queue is empty
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Interface queue is empty
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Netlink reflector reports IP 192.168.8.101 added
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Netlink reflector reports IP fe80::a00:27ff:fe53:eeca added
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Registering Kernel netlink reflector
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Registering Kernel netlink command channel
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Netlink reflector reports IP 192.168.8.101 added
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Netlink reflector reports IP fe80::a00:27ff:fe53:eeca added
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Registering Kernel netlink reflector
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Registering Kernel netlink command channel
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Registering gratuitous ARP shared channel
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Configuration is using : 5610 Bytes
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Configuration is using : 61303 Bytes
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: Using LinkWatch kernel netlink reflector...
Mar  6 02:34:42 mysqldb2 Keepalived_vrrp[12292]: VRRP sockpool: [ifindex(2), proto(112), fd(10,11)]
Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Using LinkWatch kernel netlink reflector...
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Received higher prio advert
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Entering BACKUP STATE

查看数据库监控日志

[root@mysqldb2 keepalived]# tail -f check_mysql.log
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_ok

【进行远程连接】

连接为VIP，端口为3306，schema为test

查看连接是为节点一主机

至此keepalived搭建完成

【进行keepalived模拟自动切换】

停止节点一mysql主数据库

[root@mysqldb1 keepalived]# mysqladmin --defaults-file=/etc/my.cnf -P3306 shutdown -uroot -pmysql
mysqladmin: [Warning] Using a password on the command line interface can be insecure.
[1]+  Done                    mysqld --defaults-file=/etc/my.cnf --user=mysql 
[root@mysqldb1 keepalived]#

查看节点一mysql进程监控日志

[root@mysqldb1 keepalived]# tail -f check_mysql.log
mysql_ok
mysql_ok
mysql_ok
mysql_ok
mysql_failed
mysql_failed
mysql_failed

查看节点一keepalived日志信息

Mar  6 02:33:12 mysqldb1 Keepalived_healthcheckers[12817]: Using LinkWatch kernel netlink reflector...
Mar  6 02:33:13 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Entering MASTER STATE
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) setting protocol VIPs.
Mar  6 02:33:14 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:33:14 mysqldb1 Keepalived_healthcheckers[12817]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:33:15 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:34:04 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Received lower prio advert, forcing new election
Mar  6 02:34:04 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:34:42 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Received lower prio advert, forcing new election
Mar  6 02:34:42 mysqldb1 Keepalived_vrrp[12818]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105

Mar  6 02:54:03 mysqldb1 Keepalived[12815]: Stopping Keepalived v1.2.7 (02/21,2013) 》》》keepalived进程已经停止

查看节点一keepalived进程状态

[root@mysqldb1 keepalived]# service keepalived status
keepalived dead but subsys locked
[root@mysqldb1 keepalived]#

查看节点二备库keepalived日志信息，VIP已经漂移过来

Mar  6 02:34:42 mysqldb2 Keepalived_healthcheckers[12291]: Using LinkWatch kernel netlink reflector...
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Received higher prio advert
Mar  6 02:34:43 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Entering BACKUP STATE
Mar  6 02:54:06 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:54:07 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Entering MASTER STATE
Mar  6 02:54:07 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) setting protocol VIPs.
Mar  6 02:54:07 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:54:07 mysqldb2 Keepalived_healthcheckers[12291]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:54:08 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105

测试远程连接VIP则连接到节点二数据库

【回切mysql主节点keepalived服务】

启动节点一主数据库

[root@mysqldb1 keepalived]# mysqld --defaults-file=/etc/my.cnf --user=mysql &
[1] 13039
[root@mysqldb1 keepalived]# ps -ef |grep mysql
root     12836  4599  0 02:35 pts/2    00:00:00 tail -f check_mysql.log
mysql    13039  1999  8 02:55 pts/0    00:00:00 mysqld --defaults-file=/etc/my.cnf --user=mysql
root     13073  1999  0 02:55 pts/0    00:00:00 grep mysql
[root@mysqldb1 keepalived]#

查看节点一keepalived的mysql数据库监控日志，已经为正常

[root@mysqldb1 keepalived]# tail -f check_mysql.log
mysql_ok
mysql_ok
mysql_ok
mysql_failed
mysql_failed
mysql_failed
mysql_failed
mysql_failed
mysql_failed
mysql_ok
mysql_ok
mysql_ok
mysql_ok

手动启动节点一keepalived进程，VIP已经回切

[root@mysqldb1 keepalived]# service keepalived start
Starting keepalived: [  OK  ]
[root@mysqldb1 keepalived]# ip a
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: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:62:61:3a brd ff:ff:ff:ff:ff:ff
    inet 192.168.8.100/24 brd 192.168.8.255 scope global eth1
    inet 192.168.8.105/24 scope global secondary eth1
    inet6 fe80::a00:27ff:fe62:613a/64 scope link
       valid_lft forever preferred_lft forever
[root@mysqldb1 keepalived]# service keepalived status
keepalived (pid  13139) is running...
[root@mysqldb1 keepalived]#

查看节点一的keepalived日志，VIIP已经回切

Mar  6 02:54:03 mysqldb1 Keepalived[12815]: Stopping Keepalived v1.2.7 (02/21,2013)
Mar  6 02:57:56 mysqldb1 Keepalived[13138]: Starting Keepalived v1.2.7 (02/21,2013)
Mar  6 02:57:56 mysqldb1 Keepalived[13139]: Starting Healthcheck child process, pid=13141
Mar  6 02:57:56 mysqldb1 Keepalived[13139]: Starting VRRP child process, pid=13142
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Interface queue is empty
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Netlink reflector reports IP 192.168.8.100 added
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Netlink reflector reports IP fe80::a00:27ff:fe62:613a added
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Registering Kernel netlink reflector
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Registering Kernel netlink command channel
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Registering gratuitous ARP shared channel
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Interface queue is empty
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Netlink reflector reports IP 192.168.8.100 added
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Netlink reflector reports IP fe80::a00:27ff:fe62:613a added
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Registering Kernel netlink reflector
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Registering Kernel netlink command channel
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Configuration is using : 61320 Bytes
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: Using LinkWatch kernel netlink reflector...
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Opening file '/etc/keepalived/keepalived.conf'.
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Configuration is using : 5627 Bytes
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: VRRP sockpool: [ifindex(2), proto(112), fd(10,11)]
Mar  6 02:57:56 mysqldb1 Keepalived_healthcheckers[13141]: Using LinkWatch kernel netlink reflector...
Mar  6 02:57:56 mysqldb1 Keepalived_vrrp[13142]: VRRP_Instance(VI_1) Transition to MASTER STATE
Mar  6 02:57:57 mysqldb1 Keepalived_vrrp[13142]: VRRP_Instance(VI_1) Entering MASTER STATE
Mar  6 02:57:57 mysqldb1 Keepalived_vrrp[13142]: VRRP_Instance(VI_1) setting protocol VIPs.
Mar  6 02:57:57 mysqldb1 Keepalived_vrrp[13142]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:57:58 mysqldb1 Keepalived_vrrp[13142]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105

查看节点二keepalived日志，keepalived为BACKUP STATE，VIP已经移除

Mar  6 02:54:07 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:54:07 mysqldb2 Keepalived_healthcheckers[12291]: Netlink reflector reports IP 192.168.8.105 added
Mar  6 02:54:08 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth1 for 192.168.8.105
Mar  6 02:57:57 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Received higher prio advert
Mar  6 02:57:57 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) Entering BACKUP STATE
Mar  6 02:57:57 mysqldb2 Keepalived_vrrp[12292]: VRRP_Instance(VI_1) removing protocol VIPs.
Mar  6 02:57:57 mysqldb2 Keepalived_healthcheckers[12291]: Netlink reflector reports IP 192.168.8.105 removed

测试远程VIP连接数据库为节点一

一次mysql主从加keepalived配置搭建及切换演示的更多相关文章

  1. mysql主从双机keepalived配置

    1.关闭selinux SELINUX=disabled 2.yum安装keepalived yum install -y keepalived 3.修改配置文件 主库配置文件: ! Configur ...

  2. MYSQL主从库同步配置过程

    MYSQL主从库同步配置过程 为了实现网站数据库的异地备份,采用了MySQL数据库主从同步配置,需要两台服务器分别作为主从库,当主库发生增删改等操作,会实时反映到从库,我的个人服务器配置如下: 主库为 ...

  3. mysql 8.0.18 mgr 搭建及其切换

    mysql 8.0.18 mgr 搭建及其切换 一.系统安装包 yum -y install make gcc-c++ cmake bison-devel ncurses-devel readline ...

  4. mysql主从备份+keepalived自动切换

    数据库这一层需要做到避免单点故障可以是主从备份和主主备份,主主备份可能有性能损耗和数据同步的问题.这里记录下主从备份, mysql进行备份之前确保mysql的版本是一样的,我这里用的都是mysql5. ...

  5. mysql主从备份功能配置与測试

    在高訪问量服务环境下,单机配置mysql服务将无法满足频繁快速的数据读写操作. 一旦mysql出现故障造成数据丢失.无法恢复. 因此.在mysql服务上启用主从备份功能,支持读写分离技术.最靠可的是搭 ...

  6. mysql主从服务器的配置

    使用mysql主从复制的好处有: 1.采用主从服务器这种架构,稳定性得以提升.如果主服务器发生故障,我们可以使用从服务器来提供服务. 2.在主从服务器上分开处理用户的请求,可以提升数据处理效率. 3. ...

  7. MySQL主从介绍、配置主从、测试主从同步

    6月28日任务 说明:有不少同学不能一次性把实验做成功,这是因为还不熟悉,建议至少做3遍17.1 MySQL主从介绍17.2 准备工作17.3 配置主17.4 配置从17.5 测试主从同步有的同学,遇 ...

  8. Linux Centos下MySQL主从Replication同步配置（一主一从）

    MySQL 主从复制概念MySQL 主从复制是指数据可以从一个MySQL数据库服务器主节点复制到一个或多个从节点.MySQL 默认采用异步复制方式,这样从节点不用一直访问主服务器来更新自己的数据,数据 ...

  9. 在现有的mysql主从基础上，搭建mycat实现数据的读写分离

    环境准备:MySQL服务器做好主从复制:centos6的系统 主:192.168.164.131 从:192.168.164.144 mycat服务器:192.168.164.141 a.将MySQL ...

随机推荐

  1. SQL Server数据库————增删改查

    --增删改查--增 insert into 表名(列名) value(值列表) --删 delect from 表名 where 条件 --改 update 表名 set 列名=值1,列名2=值2 w ...

  2. mysql字段约束

    为了确保数据的完整性和唯⼀性,关系型数 据库通过约束机制来实现目. 一. unique 唯一性约束    : 值不可重复: 二. not null    非空约束    : 值不可为空: 三. def ...

  3. 2018-2019-2 20175217 实验二《Java面向对象程序设计》实验报告

    一.实验报告封面 课程:Java程序设计 班级:1752班 姓名:吴一凡 学号:20175217 指导教师:娄嘉鹏 实验日期:2019年4月15日 实验时间:--- 实验序号:实验二 实验名称:Jav ...

  4. sqlplus: error while loading shared libraries: libsqlplus.so: cannot open shared object file

    sqlplus: error while loading shared libraries: libsqlplus.so: cannot open shared object file 1. 权限问题 ...

  5. netcore开发windows普通服务(非Web)并一键发布到服务器

    如何开发并一键发布WindowsService项目(netcore普通项目) netcore下开发windows服务如果是web项目的话,由于aspnetcore本身是支持的,把默认的host.Run ...

  6. Web后台快速开发框架（.NET Core）

    Web后台快速开发框架(.NET Core) Coldairarrow 目录 目录 第1章    目录    1 第2章    简介    3 第3章    基础准备    4 3.1    开发环境 ...

  7. 02 Django REST Framework 序列化

    01-创建序列化类 # 方式一: publish_list = models.Publish.objects.all() # 导入序列化组件 from django.core import seria ...

  8. Win7删除右键菜单中“图形属性”和“图形选项”

    完win7操作系统后,打完驱动在桌面右键会出现如下两个选项,平时没啥用又占用空间,那么如何删掉这两个选项呢? 操作步骤: 1.在运行中输入 regedit 确定打开注册表: 2.依次单击展开HKEY_ ...

  9. 微信小程序-表单笔记

    发布页——向云端数据库上传多行文字和4张图片 第6,8行注释掉和不注释掉都可以实现数据上传 var _this = this; wx.cloud.callFunction({ name: 'searc ...

  10. Spring Cloud Netflix vs Spring Cloud Alibaba

    Spring Cloud Netflixhttps://spring.io/projects/spring-cloud-netflix spring-cloud-alibaba/README-zh.m ...