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Diffstat (limited to 'iredis/data/commands/flushdb.md')
| -rw-r--r-- | iredis/data/commands/flushdb.md | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/iredis/data/commands/flushdb.md b/iredis/data/commands/flushdb.md index 8c76001..ee47cc1 100644 --- a/iredis/data/commands/flushdb.md +++ b/iredis/data/commands/flushdb.md @@ -1,11 +1,18 @@ Delete all the keys of the currently selected DB. This command never fails. -The time-complexity for this operation is O(N), N being the number of keys in -the database. +By default, `FLUSHDB` will synchronously flush all keys from the database. +Starting with Redis 6.2, setting the **lazyfree-lazy-user-flush** configuration +directive to "yes" changes the default flush mode to asynchronous. -## `FLUSHDB ASYNC` (Redis 4.0.0 or greater) +It is possible to use one of the following modifiers to dictate the flushing +mode explicitly: -See `FLUSHALL` for documentation. +- `ASYNC`: flushes the database asynchronously +- `!SYNC`: flushes the database synchronously + +Note: an asynchronous `FLUSHDB` command only deletes keys that were present at +the time the command was invoked. Keys created during an asynchronous flush will +be unaffected. @return |