Help Center/ Distributed Cache Service/ FAQs/ Data Backup, Export, and Migration/ What Are the Common Causes of Redis Migration Failures?
Updated on 2025-05-21 GMT+08:00
View PDF

What Are the Common Causes of Redis Migration Failures?

  • Check if a master/standby switchover occurred during the migration. If it occurred, contact technical support to temporarily disable master/standby switchover until the migration completes.
  • For online migration, check whether the SYNC and PSYNC commands are disabled on the source Redis instance. If they are disabled, enable them to allow data synchronization.
  • By default, a Proxy Cluster instance has only one database (DB 0). Before you migrate data from a single-node or master/standby instance to a Proxy Cluster instance, check whether any data exists on databases other than DB 0. If yes, enable multi-DB for the Proxy Cluster instance by referring to Enabling Multi-DB.
  • By default, a Redis Cluster instance has only one DB (DB 0). Before you migrate data from a single-node or master/standby instance to a Redis Cluster instance, check whether any data exists on databases other than DB 0. To ensure that the migration succeeds, move all data to DB 0 by referring to Online Migration from Another Cloud Using Rump.