[server] Make timed-out rebalance tasks recoverable - #3860
Open
swuferhong wants to merge 1 commit into
Open
Conversation
Co-Authored-By: Codex <noreply@openai.com> AI-Model: gpt-5.6-sol AI-Contributed/Feature: 330/330 AI-Contributed/UT: 469/469
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Purpose
Linked issue: close #3859
Treat rebalance timeout as a non-final state and continue tracking timed-out bucket migrations without blocking subsequent tasks.
Fence stale timeout and NotifyLeaderAndIsr events by rebalance attempt and request epochs. Reconcile migrations idempotently from persisted assignment and LeaderAndIsr state, and recover unfinished tasks after coordinator restart.
Persist cancellation intent before changing local state, drain admitted tasks safely, retry final-state persistence, and treat deleted buckets as completed.
Brief change log
Tests
API and Format
Documentation