自动故障迁移(核心任务):当哨兵监测到主服务器宕机,会自动在已下线主服务器属下的所有从服务器里面,挑选出一个从服务器将其转换为主服务器(自动切换)。然后通过发布订阅模式通知其他的从服务器,修改配置文件,让它们切换主机。
如果你的应用场景主要是读取数据,数据量不大,对数据的一致性要求不高,那么主从模式可能是一个不错的选择。
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Reliquaries, robes, sculptures and liturgical objects are handsomely introduced in medieval vaulted more info rooms down below the key ground of your Dom. Standouts…