Shulou(Shulou.com)06/01 Report--

1.rdb mode

(1) introduction: redis persists data to disk through snapshots by default.

(2) conditions for persistence:

There is one write in 900 seconds, or 10 writes in 300 seconds, or 10000 writes in 60 seconds.

(3) persistent storage directory

Dbfimename: represents the name of the file persisted to disk.

Dir: indicates the location where persistent files are stored.

(4) the problem of rdb:

Once redis shuts down illegally, the last persisted data will be lost.

2.aof mode

(1) introduction: redis does not use persistence in this way by default. The persistence of aof mode is to operate the redis database once, then the record of the operation is stored in the aof persistence file.

(2) configure aof persistence scheme

Step 1: change the appendonly in redis.conf to yes, which enables the persistence solution in aof mode.

Step 2: set the name of the Aof file store

(3) benefit: using aof method will not lose data. If redis is restarted, the data will be loaded from the aof file.

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