Jason Gustafson created KAFKA-2913:
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Summary: GroupMetadataManager unloads all groups in
removeGroupsForPartitions
Key: KAFKA-2913
URL: https://issues.apache.org/jira/browse/KAFKA-2913
Project: Kafka
Issue Type: Bug
Reporter: Jason Gustafson
Assignee: Jason Gustafson
In GroupMetadataManager.removeGroupsForPartition, we currently remove all
groups from the cache, but we should only be removing groups for the respective
partition. This will cause an unneeded rebalance for groups mistakenly removed.
And since the generation would reset to 0 in this case, the offsets from the
current generation would be rejected and the consumer would see duplicates.
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