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下文內容主要給大家帶來MySQL雙主高可用配置方法解析，這里所講到的知識，與書籍略有不同，都是億速云專業技術人員在與用戶接觸過程中，總結出來的，具有一定的經驗分享價值，希望給廣大讀者帶來幫助。
一、在兩臺云服務器上分別安裝MySQL實例
Mysql01:192.168.0.207
Mysql02:192.168.0.208
vip1:192.168.0.211
vip2:192.168.0.212
(略)
二、在兩臺服務器上配置主主復制
GRANT REPLICATION SLAVE ON *.* TO 'dba_repl'@'192.168.0.%' IDENTIFIED BY '123456';
change master to MASTER_HOST='192.168.0.207',
MASTER_USER='dba_repl',
MASTER_PASSWORD ='123456',
MASTER_LOG_FILE = 'mysql-bin.000003',
MASTER_LOG_POS = 120
;
三、配置keepalived,這個方案的關鍵點在于keepalived的配制，兩個vrrp_instance在兩個主上的優先級相反。
MySQL01：
global_defs {
# Keepalived process identifier
lvs_id MySQL_HA
}
# Script used to check if Proxy is running
vrrp_script check_proxy {
script "killall -0 mysql"
interval 2
weight 3
}
# Virtual interface 1
# The priority specifies the order in which the assigned interface to take over in a failover
vrrp_instance VI_01 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
# The virtual ip address shared between the two loadbalancers
virtual_ipaddress {
192.168.0.211 dev eth0
}
track_script {
check_proxy
}
}
# Virtual interface 2
# The priority specifies the order in which the assigned interface to take over in a failover
vrrp_instance VI_02 {
state MASTER
interface eth0
virtual_router_id 52
priority 102
# The virtual ip address shared between the two loadbalancers
virtual_ipaddress {
192.168.0.212 dev eth0
}
track_script {
check_proxy
}
}
主二：
global_defs {
# Keepalived process identifier
lvs_id MySQL_HA
}
# Script used to check if Proxy is running
vrrp_script check_proxy {
script "killall -0 mysql"
interval 2
weight 3
}
# Virtual interface 1
# The priority specifies the order in which the assigned interface to take over in a failover
vrrp_instance VI_01 {
state MASTER
interface eth0
virtual_router_id 51
priority 102
# The virtual ip address shared between the two loadbalancers
virtual_ipaddress {
10.103.9.211 dev eth0
}
track_script {
check_proxy
}
}
# Virtual interface 2
# The priority specifies the order in which the assigned interface to take over in a failover
vrrp_instance VI_02 {
state MASTER
interface eth0
virtual_router_id 52
priority 100
# The virtual ip address shared between the two loadbalancers
virtual_ipaddress {
192.168.0.212 dev eth0
}
track_script {
check_proxy
}
}
對于以上關于MySQL雙主高可用配置方法解析，如果大家還有更多需要了解的可以持續關注我們億速云的行業推新，如需獲取專業解答，可在官網聯系售前售后的，希望該文章可給大家帶來一定的知識更新。
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