copy redis data from server A to server B

转载于 2014-11-06 16:24:12 发布 · 529 阅读

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本文详细介绍了如何在两台服务器间进行Redis数据迁移与复制操作，确保数据的一致性和连续性。通过创建快照、复制数据、以及保持版本一致性等步骤，实现高效的数据同步。

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First, create a dump on server A.

A$ redis-cli
127.0.0.1:6379> SAVE
OK

This will ensure /var/lib/redis/dump.rdb is completely up-to-date. (This file is periodically written by Redis anyway.)

Next, copy it to server B:

A$ scp /var/lib/redis/dump.rdb myuser@B:/tmp/dump.rdb

Stop the Redis server on B, copy dump.rdb (ensuring permissions are the same as before), then start.

B$ sudo service redis-server stop
B$ sudo cp /tmp/dump.rdb /var/lib/redis/dump.rdb
B$ sudo chown redis: /var/lib/redis/dump.rdb
B$ sudo service redis-server start

The version of Redis on B must be greater or equal than that of A, or you may hit compatibility issues.