David Jacot created KAFKA-18263:
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Summary: Group lock must be acquired when reverting static
membership rejoin
Key: KAFKA-18263
URL: https://issues.apache.org/jira/browse/KAFKA-18263
Project: Kafka
Issue Type: Bug
Reporter: David Jacot
Assignee: David Jacot
When a static member rejoins the group, the group state is rewritten to the
partition in order to persist the change. If the write fails, the change is
reverted. However, this is done without acquiring the group lock.
This is only try in the old group coordinator. The new one does not suffer from
this issue.
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