Two Redis + keepalived master Preparation

1 Redis installation, keepalived installation

2 keepalived Configuration

Master

/etc/keepalived/keepalived.conf

############

! Configuration File for Keepalived

Vrrp_script Chk_redis {

Script "/etc/keepalived/scripts/redis_check.sh" # # #监控脚本

Interval 2 # # #监控时间

}

Vrrp_instance Vi_1 {

State MASTER # # #设置为MASTER

Interface Eth0 # # #监控网卡

VIRTUAL_ROUTER_ID 51

Priority # # # #权重值

Authentication {

Auth_type PASS # # #加密

Auth_pass 7IB8LAW3RB # # #密码

}

Track_script {

Chk_redis # # #执行上面定义的chk_redis

}

virtual_ipaddress {

192.168.2.200 # # #VIP

}

notify_master/etc/keepalived/scripts/redis_master.sh

notify_backup/etc/keepalived/scripts/redis_backup.sh

notify_fault/etc/keepalived/scripts/redis_fault.sh

notify_stop/etc/keepalived/scripts/redis_stop.sh

}

#########

/etc/keepalived/scripts/Create a script ( Note that the script has permission to execute ):

redis_master.sh

###############

#!/bin/bash

Rediscli= "/usr/local/redis/bin/redis-cli"

Logfile= "/var/log/keepalived-redis-state.log"

echo "[Master]" >> $LOGFILE

Date >> $LOGFILE

echo "Being master ..." >> $LOGFILE 2>&1

echo "Run slaveof cmd ..." >> $LOGFILE

$REDISCLI-P 6379-a admin slaveof 192.168.2.82 6379 >> $LOGFILE 2>&1

Sleep #延迟10秒以后待数据同步完成后再取消同步状态

echo "Run slaveof NO one cmd ..." >> $LOGFILE

$REDISCLI-P 6379-a admin slaveof NO one >> $LOGFILE 2>&1

########

redis_backup.sh

########

#!/bin/bash

Rediscli= "/usr/local/redis/bin/redis-cli"

Logfile= "/var/log/keepalived-redis-state.log"

echo "[Backup]" >> $LOGFILE

Date >> $LOGFILE

echo "Being slave ..." >> $LOGFILE 2>&1

Sleep #延迟15秒待数据被对方同步完成之后再切换主从角色

echo "Run slaveof cmd ..." >> $LOGFILE

$REDISCLI-P 6379-a admin slaveof 192.168.2.82 6379 >> $LOGFILE 2>&1

########

192.168.2.82 slave IP

redis_fault.sh

######

#!/bin/bash

Logfile=/var/log/keepalived-redis-state.log

echo "[Fault]" >> $LOGFILE

Date >> $LOGFILE

#####

redis_stop.sh

####

#!/bin/bash

Logfile=/var/log/keepalived-redis-state.log

echo "[Fault]" >> $LOGFILE

Date >> $LOGFILE

####

Backup

/etc/keepalived/keepalived.conf

##########

! Configuration File for Keepalived

Vrrp_script Chk_redis {

Script "/etc/keepalived/scripts/redis_check.sh" # # #监控脚本

Interval 2 # # #监控时间

}

Vrrp_instance Vi_1 {

State BACKUP # # #设置为BACKUP

Interface Eth0 # # #监控网卡

VIRTUAL_ROUTER_ID 51

Priority # # # #比MASTRE权重值低

Authentication {

Auth_type PASS

Auth_pass 7IB8LAW3RB # # #密码与MASTRE相同

}

Track_script {

Chk_redis # # #执行上面定义的chk_redis

}

virtual_ipaddress {

192.168.2.200 # # #VIP

}

notify_master/etc/keepalived/scripts/redis_master.sh

notify_backup/etc/keepalived/scripts/redis_backup.sh

notify_fault/etc/keepalived/scripts/redis_fault.sh

notify_stop/etc/keepalived/scripts/redis_stop.sh

}

Create a script under/etc/keepalived/scripts/:

redis_master.sh

####

#!/bin/bash

Rediscli= "/usr/local/redis/bin/redis-cli"

Logfile= "/var/log/keepalived-redis-state.log"

echo "[Master]" >> $LOGFILE

Date >> $LOGFILE

echo "Being master ..." >> $LOGFILE 2>&1

echo "Run slaveof cmd ..." >> $LOGFILE

# $REDISCLI-H 192.168.2.82-p 6379-a admin slaveof NO One

$REDISCLI-P 6379-a admin slaveof 192.168.2.81 6379

Sleep #延迟10秒以后待数据同步完成后再取消同步状态

echo "Run slaveof NO one cmd ..." >> $LOGFILE

$REDISCLI-P 6379-a admin slaveof NO one >> $LOGFILE 2>&1

####

192.168.2.81 to Masterip

redis_backup.sh

#####

#!/bin/bash

Rediscli= "/usr/local/redis/bin/redis-cli"

Logfile= "/var/log/keepalived-redis-state.log"

echo "[Backup]" >> $LOGFILE

Date >> $LOGFILE

echo "Being slave ..." >> $LOGFILE 2>&1

Sleep #延迟15秒待数据被对方同步完成之后再切换主从角色

echo "Run slaveof cmd ..." >> $LOGFILE

# $REDISCLI slaveof-h 192.168.2.81-p 6379-a admin >> $LOGFILE 2>&1

$REDISCLI-H 192.168.2.82-p 6379-a admin slaveof 192.168.2.81 6379

####

redis_fault.sh

####

#!/bin/bash

Logfile=/var/log/keepalived-redis-state.log

echo "[Fault]" >> $LOGFILE

Date >> $LOGFILE

####

redis_stop.sh

####

#!/bin/bash

Logfile=/var/log/keepalived-redis-state.log

echo "[Stop]" >> $LOGFILE

Date >> $LOGFILE

####

Two Redis + keepalived master Preparation