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Tree: 2ffdda2661

add-ec-vacuum

add-foundation-db

add_fasthttp_client

add_remote_storage

adding-message-queue-integration-tests

avoid_releasing_temp_file_on_write

changing-to-zap

collect-public-metrics

create-table-snapshot-api-design

data_query_pushdown

dependabot/maven/other/java/client/com.google.protobuf-protobuf-java-3.25.5

dependabot/maven/other/java/examples/org.apache.hadoop-hadoop-common-3.4.0

detect-and-plan-ec-tasks

do-not-retry-if-error-is-NotFound

fasthttp

filer1_maintenance_branch

fix-GetObjectLockConfigurationHandler

fix-versioning-listing-only

ftp

gh-pages

improve-fuse-mount

improve-fuse-mount2

logrus

master

message_send

mount2

mq-subscribe

mq2

original_weed_mount

random_access_file

refactor-needle-read-operations

refactor-volume-write

remote_overlay

revert-5134-patch-1

revert-5819-patch-1

revert-6434-bugfix-missing-s3-audit

s3-select

sub

tcp_read

test-reverting-lock-table

test_udp

testing

testing-sdx-generation

tikv

track-mount-e2e

volume_buffered_writes

worker-execute-ec-tasks

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dev

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seaweedfs/test/kafka/cmd/setup

History

chrislu 2ffdda2661 fix: commit offsets in Cleanup() before rebalancing This commit adds explicit offset commit in the ConsumerGroupHandler.Cleanup() method, which is called during consumer group rebalancing. This ensures all marked offsets are committed BEFORE partitions are reassigned to other consumers, significantly reducing duplicate message consumption during rebalancing. Problem: - Cleanup() was not committing offsets before rebalancing - When partition reassigned to another consumer, it started from last committed offset - Uncommitted messages (processed but not yet committed) were read again by new consumer - This caused ~100-200% duplicate messages during rebalancing in tests Solution: - Add session.Commit() in Cleanup() method - This runs after all ConsumeClaim goroutines have exited - Ensures all MarkMessage() calls are committed before partition release - New consumer starts from the last processed offset, not an older committed offset Benefits: - Dramatically reduces duplicate messages during rebalancing - Improves at-least-once semantics (closer to exactly-once for normal cases) - Better performance (less redundant processing) - Cleaner test results (expected duplicates only from actual failures) Kafka Rebalancing Lifecycle: 1. Rebalance triggered (consumer join/leave, timeout, etc.) 2. All ConsumeClaim goroutines cancelled 3. Cleanup() called ← WE COMMIT HERE NOW 4. Partitions reassigned to other consumers 5. New consumer starts from last committed offset ← NOW MORE UP-TO-DATE Expected Results: - Before: ~100-200% duplicates during rebalancing (2-3x reads) - After: <10% duplicates (only from uncommitted in-flight messages) This is a critical fix for production deployments where consumer churn (scaling, restarts, failures) causes frequent rebalancing.		7 days ago
..
main.go	Add Kafka Gateway (#7231)	1 week ago