Fix epoch race - #51
Merged
Merged
Conversation
harshil-goel
approved these changes
Jul 3, 2026
Every MappingHandle write now bumps the shared invalidation epoch after its write guard drops, so decode-pool workers holding a pre-DDL mapping snapshot flush on their next refresh
rebump catalog invalidations at decoder position
Replace global pg_class delete epoch with PendingSweeps keyed by WAL xids, so interleaved commits cannot consume DROP signals before dropping transaction replays Parse prepared xids and disarm aborted subxact arms
serprex
force-pushed
the
worktree-decode-pool-mapping-epoch
branch
from
July 3, 2026 16:41
94f9124 to
b79c33f
Compare
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Every MappingHandle write now bumps the shared invalidation epoch after its write guard drops, so decode-pool workers holding a pre-DDL mapping snapshot flush on their next refresh
Avoid caching stale descriptors under fresh epochs, rebump catalog invalidations at decoder position