Sean Quah created KAFKA-20747:
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Summary: Static member rejoining with same member id and different
instance id not tracked correctly
Key: KAFKA-20747
URL: https://issues.apache.org/jira/browse/KAFKA-20747
Project: Kafka
Issue Type: Bug
Components: group-coordinator
Affects Versions: 4.3.1, 4.2.1, 4.1.2, 4.1.1, 4.0.2, 4.3.0, 4.2.0, 4.1.0,
4.0.1, 4.0.0
Reporter: Sean Quah
Assignee: Sean Quah
# A group has a static member with member id $memberId and instance id
$instanceId1.
# The member heartbeats with epoch 0, member id $memberId and instance id
$instanceId2.
# The group's `staticMembers` map now contains entries for both $instanceId1
and $instanceId2 both pointing to $memberId.
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