FLUSHALL

Syntax

FLUSHALL [ASYNC | SYNC]

Time complexity: O(N) where N is the total number of keys in all databases

ACL categories: @keyspace, @write, @slow, @dangerous

Delete all the keys for all the existing databases, not just the currently selected one. This command never fails.

Notes

• The FLUSHALL command always deletes keys asynchronously. It only deletes keys that were present at the time the command was invoked. Keys created during the deletion will be unaffected.
• However, if the SYNC option is specified, the command waits for the deletion (which is still asynchronous) to finish. Because of this, unlike Redis/Valkey, this command never blocks other commands.

Return

Simple string reply: OK.