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redis自动主从切换

时间:2016-09-29 22:26:45      阅读:264      评论:0      收藏:0      [点我收藏+]

标签:redis   主从切换   

127.0.0.1     7000     master

127.0.0.1     7001     slave

127.0.0.1     7002     slave

127.0.0.1     7003     slave

查看主上面连接的从


redis-cli -p 7000 info Replication


# Replication

role:master

connected_slaves:3

slave0:ip=127.0.0.1,port=7001,state=online,offset=2532,lag=0

slave1:ip=127.0.0.1,port=7002,state=online,offset=2532,lag=0

slave2:ip=127.0.0.1,port=7003,state=online,offset=2532,lag=1

master_repl_offset:2532

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:2

repl_backlog_histlen:2531

创建sentinel配置文件


vim /redis_test/7000/sentinel.conf


port 26379

sentinel monitor master 127.0.0.1 7000 2

sentinel down-after-milliseconds master 5000

sentinel failover-timeout master 60000

sentinel config-epoch master 12

vim /redis_test/7001/sentinel.conf


port 26479

sentinel monitor master 127.0.0.1 7000 2

sentinel down-after-milliseconds master 5000

sentinel failover-timeout master 60000

sentinel config-epoch master 12

vim /redis_test/7002/sentinel.conf


port 26579

sentinel monitor master 127.0.0.1 7000 2

sentinel down-after-milliseconds master 5000

sentinel failover-timeout master 60000

sentinel config-epoch master 12

启动sentinel

/usr/src/redis/src/redis-server /redis_database/7000/sentinel.conf --sentinel &

/usr/src/redis/src/redis-server /redis_database/7001/sentinel.conf --sentinel &

/usr/src/redis/src/redis-server /redis_database/7002/sentinel.conf --sentinel &

将主7000关掉


redis-cli -p 7000 shutdown


redis-cli -p 7002 info replication


# Replication

role:master

connected_slaves:2

slave0:ip=127.0.0.1,port=7001,state=online,offset=6345,lag=0

slave1:ip=127.0.0.1,port=7003,state=online,offset=6345,lag=0

master_repl_offset:6345

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:2

repl_backlog_histlen:6344


可以发现7002变成了新的主库


本文出自 “IT” 博客,请务必保留此出处http://wang3781.blog.51cto.com/9428009/1857763

redis自动主从切换

标签:redis   主从切换   

原文地址:http://wang3781.blog.51cto.com/9428009/1857763

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