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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-17 07:34:48 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-07-17 07:34:57 +0000 |
| commit | d71fd6264d58795c50b9350d7c39677b671e0896 (patch) | |
| tree | 0aa9e0bd923a00b9ddda4e01af55a76ed314097c /iredis/data/commands/flushdb.md | |
| parent | Releasing debian version 1.9.1-3. (diff) | |
| download | iredis-d71fd6264d58795c50b9350d7c39677b671e0896.tar.xz iredis-d71fd6264d58795c50b9350d7c39677b671e0896.zip | |
Merging upstream version 1.9.4.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 |