redis clear cache command

Use the FLUSHALL command to clear all cached data in Redis, delete all key-value pairs, and restore the database to its initial state. Other methods of clearing the cache include: deleting a single key-value pair (DEL), deleting a key-value pair without releasing memory (UNLINK), and setting a key-value pair expiration time (EXPIRE). The method chosen depends on the use case and the level of data loss allowed.

Redis clear cache command

Question: How to clear the cache in Redis?

Answer: You can use the FLUSHALL command to clear all key-value pairs in Redis.

Detailed description:

FLUSHALL command is a low-level command that will delete all data in the Redis database. After this command is executed, the database will be restored to its original state without any key-value pairs.

Note:

• Be careful when using the FLUSHALL command as it is a dangerous operation.
• If there is no backup, using this command will cause all data to be lost.
• This command can only be used in a single instance of Redis. In a cluster environment, you need to use the CLUSTER FLUSHALL command.

Other options for clearing the cache:

In addition to the FLUSHALL command, there are other ways to clear the cache based on specific conditions:

• DEL: Delete a single key-value pair.
• UNLINK: Deletes the key-value pair from the database, but does not release the memory.
• EXPIRE: Set the expiration time of the key-value pair. When the expiration time arrives, the key-value pair will be automatically deleted.

Choose the appropriate method:

Choosing the most appropriate method for clearing the cache depends on the specific use case and tolerance for data loss. If you need to clear all data quickly, the FLUSHALL command is the best choice. If more fine-grained control is required, additional commands are available.

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