fix(server): mget crash on same key get #2474
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Signed-off-by: adi_holden <adi@dragonflydb.io>
This reverts commit f69f2ec.
Signed-off-by: adi_holden <adi@dragonflydb.io>
adiholden
requested review from
romange and
kostasrim
and removed request for
romange
kostasrim
previously approved these changes
Jan 25, 2024
| @@ -279,6 +279,39 @@ TEST_F(StringFamilyTest, MGetCachingModeBug2276) { | |||
| EXPECT_GT(bumps2, bumps1); | |||
| } | |||
|
|
|||
| TEST_F(StringFamilyTest, MGetCachingModeBug2465) { | |||
There was a problem hiding this comment.
Nice! I was about to ask for a test and you pushed :)
romange
previously approved these changes
Jan 25, 2024
| @@ -121,7 +121,7 @@ class PrimeBumpPolicy { | |||
| : bumped_items_(bumped_items) { | |||
| } | |||
| // returns true if key can be made less important for eviction (opposite of bump up) | |||
| bool CanBumpDown(const CompactObj& obj) const { | |||
| bool CanBump(const CompactObj& obj) const { | |||
There was a problem hiding this comment.
Please update comment as well
src/server/string_family.cc
Outdated
| @@ -494,18 +494,18 @@ class SetResultBuilder { | |||
|
|
|||
| SinkReplyBuilder::MGetResponse OpMGet(bool fetch_mcflag, bool fetch_mcver, const Transaction* t, | |||
| EngineShard* shard) { | |||
| auto keys = t->GetShardArgs(shard->shard_id()); | |||
| DCHECK(!keys.empty()); | |||
| auto args = t->GetShardArgs(shard->shard_id()); | |||
There was a problem hiding this comment.
Can you please still keep the 'keys' name here?
Signed-off-by: adi_holden <adi@dragonflydb.io>
Signed-off-by: adi_holden <adi@dragonflydb.io>
Signed-off-by: adi_holden <adi@dragonflydb.io>
romange
approved these changes
Jan 28, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
fix: #2465
the bug: on cache mode mget bumps up items. When executing mget with the same key several times i.e mget key key we will invalidate the iterator when we bump up the item in dash table.
the fix: bump up/down items only once by using bumped_items set
This PR also reverts c225113
and updates the bumped stats and bumped_items set if the item was bumped