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https://issues.apache.org/jira/browse/KAFKA-14019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18123297#comment-18123297
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Ojasva Jain commented on KAFKA-14019:
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[~chia7712] I confirmed that the bug still exists through
[this|https://github.com/apache/kafka/compare/trunk...ojasvajain:kafka:KAFKA-14019-remove-all-members-empty-group]
failing test case. The fix seems small - we need to ensure that we don't send
a leave group request if there are no members to be removed, and return
success. Can I assign this ticket to myself?
> removeMembersFromConsumerGroup can't delete all members when there is no
> members already
> ----------------------------------------------------------------------------------------
>
> Key: KAFKA-14019
> URL: https://issues.apache.org/jira/browse/KAFKA-14019
> Project: Kafka
> Issue Type: Bug
> Reporter: Chia-Ping Tsai
> Priority: Minor
>
> The root cause is that the method fetch no member from server, so it fails to
> construct RemoveMembersFromConsumerGroupOptions (it can't accept empty list)
> It seems to me deleting all members from a "empty" list is valid.
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