Redis Flushall

Redis is an in-memory data structure store that is used as a database, cache, and message broker. With Redis, you can manipulate your data using simple key-value operations, among other things. One of the useful commands supported by Redis is flushall.

What is Redis Flushall?

flushall is a Redis command that is used to remove all keys from all databases on a Redis server. In other words, it clears all the data stored in Redis. Once executed, the command deletes all data and returns OK.

Syntax

The flushall command accepts no arguments and can be executed by typing the following command in a Redis prompt:

FLUSHALL

Use Cases

There are several scenarios in which you might want to use the flushall command, including:

Resetting Redis

If you are testing Redis or you want to start using Redis with a clean slate, you can use the flushall command to remove all the data stored in Redis. This will reset Redis back to its default state.

Removing Sensitive Data

In some cases, you might want to remove all sensitive data from Redis. You can use the flushall command to remove this data quickly.

Resolving Memory Issues

If Redis is consuming too much server memory, you can use the flushall command to quickly free up memory. However, use this with caution. Once you execute this command, all the data stored in Redis will be deleted.

Conclusion

The flushall command is a useful Redis command that can be used to remove all keys from all databases on a Redis server. It can be used to reset Redis or remove sensitive data quickly. However, you should use this command with caution, as it deletes all data stored in Redis, which can result in data loss.