How to Clear a Specific Redis Database Cache

Warning

FLUSHDB permanently deletes all keys in the selected Redis database. Verify host and database index before running this command.

Prerequisites

• Network access to the Redis server
• redis-cli installed
• Correct Redis database index

Install client tools (if needed):

sudo apt update && sudo apt install redis-tools

Steps

1. Connect to the Redis server and select the target database:

redis-cli -h prod-xxxx.amazonaws.com -d 2

2. Run flush command:

flushdb async

3. Verify response:

OK

Replace 2 with your target database index (0-based).

If you need to clear all databases (higher risk), use flushall async instead.