Redis provides multiple data migration methods: Redis Replication: Enable replication function to synchronize data to the target server. Redis RDB Export and Import: Create an RDB file, copy it from the source server to the destination server, and then load it. Redis AOF Export and Import: Create an AOF file, copy it to the target server, enable AOF, and then rewrite the AOF file. Redis Sentinel: Monitors the source server and automatically fails over to the secondary server in the event of a failure. Other tools: Dump/Restore is used to create/load data snapshots, and Redis Migrate is used to migrate between different Redis versions
How to migrate Redis data
Redis provides several ways to migrate data. Here is a step-by-step guide on how to perform Redis data migration:
Redis Copy
- Step 1: Enable replication on the source Redis server.
- Step 2: Add the source server as the primary server on the target Redis server.
- Step 3: When the replication process is completed, the data will be automatically synchronized from the source server to the target server.
Redis RDB Export and Import
- Step 1: Create an RDB file using the
SAVEorBGSAVEcommand on the source Redis server. - Step 2: Copy the RDB file from the source server to the destination server.
- Step 3: Load the RDB file using the
RESTOREcommand on the target server.
Redis AOF Export and Import
- Step 1: Create an AOF file on the source Redis server.
- Step 2: Copy the AOF file from the source server to the destination server.
- Step 3: Enable AOF using
APPENDONLY YESon the target server. - Step 4: Rewrite the AOF file using
BGREWRITEAOFcommand.
Redis Sentinel
- Step 1: Install Redis Sentinel.
- Step 2: Configure Sentinel to monitor the source Redis server.
- Step 3: When the primary server fails, Sentinel will automatically fail over to the secondary server.
Other tools
- Dump/Restore: Use Redis' dump/restore command to create and load data snapshots.
- Redis Migrate: Use the Redis-Migrate tool to migrate data between different versions of Redis instances.
Notice
- Create a backup before migrating the data.
- Make sure the source and destination servers have the same Redis version.
- Consider network latency and bandwidth issues.
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