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https://issues.apache.org/jira/browse/KAFKA-17189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17868165#comment-17868165
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Chia-Ping Tsai commented on KAFKA-17189:
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It seems`ThreadUtils#shutdownExecutorServiceQuietly` does not wait all threads
get updated state. Hence, we will encounter race conditions when calling
`Thread.getAllStackTraces()` ...
[0]
https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/common/utils/ThreadUtils.java#L71
> Add Thread::isAlive to DetectThreadLeak#of filter
> -------------------------------------------------
>
> Key: KAFKA-17189
> URL: https://issues.apache.org/jira/browse/KAFKA-17189
> Project: Kafka
> Issue Type: Sub-task
> Reporter: PoAn Yang
> Assignee: PoAn Yang
> Priority: Minor
>
> Although we have KAFKA-17159 to close kafka-cluster-test-kit-executor, we
> still have many thread leak when removing `waitForCondition` [0].
>
> Adding log to show whether thread is alive when showing "Thread leak
> detected" message, I found that detected thread is not alive. We may need to
> consider adding `Thread::isAlive` to `DetectThreadLeak#of` filter.
>
> [0]
> [https://ci-builds.apache.org/job/Kafka/job/kafka-pr/job/PR-16661/1/testReport/]
>
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