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https://issues.apache.org/jira/browse/SOLR-15660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17534038#comment-17534038
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Michael Gibney commented on SOLR-15660:
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Mike, I think not exactly, though similar in some ways? The [failures I'm
looking
at|https://lists.apache.org/[email protected]:dfr=2022-4-1%7Cdto=2022-5-31:[email protected]/java.util.concurrent.ThreadPoolExecutor.tryTerminate]
involve the Executor thread that notifies the threads (e.g., the main test
thread) that are waiting on awaitTermination(). That notifying/signalAll thread
is still Runnable, in the process of releasing the lock after having notified
the threads awaiting executor termination. Presumably the notifying thread is
about to die, but I think at the time it's being detected as leaked, it's
actually RUNNABLE. All the stack traces in the builds@solr link above are quite
similar ... search for {{tryTerminate()}} ...
More generally though, I do think these may be part of a category including the
TERMINATED thread you asked about: threads that are technically "leaked", but
in normal, harmless, unavoidable, transient ways.
> Remove universal 10 second test thread leak linger.
> ---------------------------------------------------
>
> Key: SOLR-15660
> URL: https://issues.apache.org/jira/browse/SOLR-15660
> Project: Solr
> Issue Type: Test
> Components: Tests
> Reporter: Mark Robert Miller
> Assignee: Mark Robert Miller
> Priority: Minor
> Fix For: 9.0
>
> Attachments: screenshot-1.png
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
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