How to migrate data with redis

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 SAVE or BGSAVE command 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 RESTORE command 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 YES on the target server.
• Step 4: Rewrite the AOF file using BGREWRITEAOF command.

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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