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https://issues.apache.org/jira/browse/KAFKA-6179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-6179.
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Resolution: Fixed
Fix Version/s: 0.11.0.2
1.1.0
1.0.1
Issue resolved by pull request 4186
[https://github.com/apache/kafka/pull/4186]
> RecordQueue.clear() does not clear MinTimestampTracker's maintained list
> ------------------------------------------------------------------------
>
> Key: KAFKA-6179
> URL: https://issues.apache.org/jira/browse/KAFKA-6179
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.10.2.1, 0.11.0.1, 1.0.0
> Reporter: Guozhang Wang
> Assignee: Guozhang Wang
> Fix For: 1.0.1, 1.1.0, 0.11.0.2
>
>
> When a stream task is being suspended, in {{RecordQueue.clear()}} we will
> clear the {{ArrayDeque fifoQueue}}, but we do not clear the
> {{MinTimestampTracker}}'s maintained list. As a result if the task gets
> resumed we will live with an empty {{fifoQueue}} while a populated
> {{tracker}}. And hence we use reference equality to check if the smallest
> timestamp record can be popped, we would never be able to pop any more
> records and hence effectively leading to memory leak.
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