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https://issues.apache.org/jira/browse/KAFKA-13856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justinwins reassigned KAFKA-13856:
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Assignee: Justinwins
> MirrorCheckpointTask meets ConcurrentModificationException
> ----------------------------------------------------------
>
> Key: KAFKA-13856
> URL: https://issues.apache.org/jira/browse/KAFKA-13856
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 3.0.1
> Reporter: Justinwins
> Assignee: Justinwins
> Priority: Minor
> Labels: bug
>
> In MirrorCheckpointTask.java, the field
> private Map<String, List<Checkpoint>> checkpointsPerConsumerGroup = new
> HashMap<>
> may be modified ( used with put API) , and traversed by two different
> threads at the same time.
> Clearly,this would incur ConcurrentModificationException.
>
> This bug still exists in Trunk branch.
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