How Do I Clear Redis Data?

Exercise caution when clearing data.

• Redis 3.0

  Data of a DCS Redis 3.0 instance cannot be cleared on the console, and can only be cleared by the FLUSHDB or FLUSHALL command in redis-cli.

  Run the FLUSHALL command to clear all the data in the instance.

  Run the FLUSHDB command to clear the data in the currently selected database.

• Redis 4.0 or later

  To clear data of a DCS Redis 4.0 or later instance, you can run the FLUSHDB or FLUSHALL command in redis-cli, use the data clearing function on the DCS console, or run the FLUSHDB command on Web CLI.

  To clear data of a Redis Cluster instance, run the FLUSHDB or FLUSHALL command on every shard of the instance. Otherwise, data may not be completely cleared.

  

  • Currently, the data clearing function and Web CLI access on the console are supported only by DCS Redis 4.0 or later instances.
  • When you run the FLUSHDB command on Web CLI, only one shard is cleared at a time. If there are multiple shards, connect to the master node of each shard and run the FLUSHDB command separately.
  • Redis Cluster data cannot be cleared by using Web CLI.