keepalived+redis做双机热备
keepalived配置文件 主从配置一样，需要修改优先级1
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global_defs {
router_id REDIS05
}
vrrp_instance VI_5 {
state BACKUP
interface bond0
virtual_router_id 85
priority 150
authentication {
auth_type PASS
auth_pass redis10
}
advert_int 2
virtual_ipaddress {
1.1.1.1
}
notify_master /data/scripts/redis_master.sh
notify_backup /data/scripts/redis_backup.sh
notify_fault/data/scripts/redis_fault.sh
notify_stop /data/scripts/redis_stop.sh
}
四个redis脚本的内容
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# cat redis_backup.sh
#!/bin/bash
REDISCLI="/data/server/redis/bin/redis-cli"
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "" >> $LOGFILE
date >> $LOGFILE
echo "Being slave...." >> $LOGFILE 2>&1
#sleep 25
echo "Run SLAVEOF cmd ..." >> $LOGFILE
$REDISCLI -p 6359 SLAVEOF 1.1.1.1 6359 >> $LOGFILE2>&1
# catredis_fault.sh
#!/bin/bash
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "" >> $LOGFILE
date >> $LOGFILE
# cat redis_master.sh
#!/bin/bash
REDISCLI="/data/server/redis/bin/redis-cli"
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "" >> $LOGFILE
date >> $LOGFILE
echo "Being master...." >> $LOGFILE 2>&1
echo "Run SLAVEOF NO ONE cmd ..." >> $LOGFILE
$REDISCLI -p 6359 SLAVEOF NO ONE >> $LOGFILE2>&1
# cat redis_stop.sh
#!/bin/bash
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "" >> $LOGFILE
date >> $LOGFILE
附带一个备份脚本
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#!/bin/bash
#global dir variables
dir="/data/server/redis/data/"
backup_dir="/data/backups/redis/"
#global backup file name
file_name="redis-jzpush01-6359-dump.rdb"
#section backup time
section=`date +%y%m%d%H`
#execute backup
/data/server/redis/bin/redis-cli -p 6359 BGSAVE
/bin/cp -f $dir/$file_name $backup_dir/$file_name.${section}
/usr/bin/find $backup_dir -type f -ctime +2 | xargs -n 1 rm -f
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