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https://issues.apache.org/jira/browse/KAFKA-5348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16061802#comment-16061802
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Ivan Babrou commented on KAFKA-5348:
------------------------------------
I don't know how to reproduce, unfortunately. Is there a reason to check for
/ids on group removal? Why not just remove if there are no active partition
owners?
> kafka-consumer-groups.sh refuses to remove groups without ids
> -------------------------------------------------------------
>
> Key: KAFKA-5348
> URL: https://issues.apache.org/jira/browse/KAFKA-5348
> Project: Kafka
> Issue Type: Bug
> Components: admin
> Affects Versions: 0.10.2.0
> Reporter: Ivan Babrou
> Assignee: Vahid Hashemian
>
> In zookeeper I have:
> {noformat}
> [zk: foo(CONNECTED) 37] ls /kafka/logs/consumers/console-consumer-4107
> [offsets]
> {noformat}
> This consumer group also shows up when I list consumer groups:
> {noformat}
> $ /usr/local/kafka/bin/kafka-consumer-groups.sh --zookeeper
> foo:2181/kafka/logs --list | fgrep console-consumer-4107
> Note: This will only show information about consumers that use ZooKeeper (not
> those using the Java consumer API).
> console-consumer-4107
> {noformat}
> But I cannot remove this group:
> {noformat}
> $ /usr/local/kafka/bin/kafka-consumer-groups.sh --zookeeper
> 36zk1.in.pdx.cfdata.org:2181/kafka/logs --delete --group console-consumer-4107
> Note: This will only show information about consumers that use ZooKeeper (not
> those using the Java consumer API).
> Error: Delete for group 'console-consumer-4107' failed because group does not
> exist.
> {noformat}
> I ran tcpdump and it turns out that /ids path is checked:
> {noformat}
> $.e.........P.fP...&......<...........//kafka/logs/consumers/console-consumer-4107/ids.
> {noformat}
> I think kafka should not check for /ids, it should check for / instead here.
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