Redis Persistence and master-slave replication

Persistence: Starts the server to store data into memory and stores the memory data to the hard disk by persisting.

RDB (snapshot), default ( time-related, time-saving )

Cons: Illegal shutdown will lose data

In redis.conf

Save time (how many times to operate)

Dir./(Store directory)

AOF mode, not default ( time independent, operation once stored )

Redis.conf in appendonly Yes

Modify the configuration file to restart the service

AOF store the corresponding SQL statement, modify the restart to take effect , at this time read aof data.

Master-slave replication: Persistence caches the cache to the hard disk, avoids data loss caused by the failure of the Redis (master) server hard disk, and when Master is broken, its slave replica server can provide services.

Host configuration: None

Slave configuration: redis.conf slaveof masterip masterport (configurable)

Redis Persistence and master-slave replication