Redis主从复制和主从切换
Redis的主从复制功能可以实现读写分离,一个主可以挂载多个从.从服务器只能实现读不可写.当主服务器挂掉之后,无法切换到从服务
####master sentinel.conf
##sentinel实例之间的通讯端口
port 26379
####sentinel需要监控的master信息:
####
sentinel monitor mymaster 127.0.0.1 6381 2
####授权密码,在安全的环境中可以不设置
##sentinel auth-pass mymaster luyx30
####master被当前sentinel实例认定为“失效”(SDOWN)的间隔时间
sentinel failover-timeout mymaster 900000
####当新master产生时,同时进行“slaveof”到新master并进行同步复制的slave个数。
##在salve执行salveof与同步时,将会终止客户端请求。

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