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https://issues.apache.org/jira/browse/KAFKA-9065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson resolved KAFKA-9065.
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Fix Version/s: 2.4.1
Resolution: Fixed
> Loading offsets and group metadata loops forever
> ------------------------------------------------
>
> Key: KAFKA-9065
> URL: https://issues.apache.org/jira/browse/KAFKA-9065
> Project: Kafka
> Issue Type: Bug
> Reporter: David Jacot
> Assignee: David Jacot
> Priority: Major
> Fix For: 2.4.1
>
>
> When the metadata manager loads the groups and the offsets of a partition of
> the __consumer-offsets topic, `GroupMetadataManager.doLoadGroupsAndOffsets`
> could loop forever if the start offset of the partition is smaller than the
> end offset and no records are effectively read from the partition.
> While the conditions leading to this issue are not clear, I've got the case
> where a partition was having two segments which were both empty in a cluster.
> This could theoretically happen when all the tombstones in the first are
> expired and the second is truncated or when the partition is accidentally
> corrupted.
> As a side effect, the `doLoadGroupsAndOffsets` spins forever, blocks the
> single thread of the scheduler, blocks the loading of all the groups and
> offsets which are after in the queue, and blocks the expiration of the
> offsets.
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