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https://issues.apache.org/jira/browse/CASSANDRA-14815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16705112#comment-16705112
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Benedict commented on CASSANDRA-14815:
--------------------------------------
There is a downside to the approach I've taken, which is that the threads are
not guaranteed to have stopped by the time shutdown exits. I've added a
follow-up commit that reduces this window, but this is still not a guarantee.
I think this commit is probably better to exclude, but I'll await your
feedback. I have a final commit that just has the test method invoke
{{join()}} on each matching thread with a short wait parameter, so that they
have the opportunity to stop themselves.
> SEPExecutor does not fully shut down
> ------------------------------------
>
> Key: CASSANDRA-14815
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14815
> Project: Cassandra
> Issue Type: Bug
> Components: Lifecycle
> Reporter: Alex Petrov
> Assignee: Alex Petrov
> Priority: Minor
>
> When trying to shut down an SEP Executor, a parked worked will still be
> parked on:
> {code}
> sun.misc.Unsafe.park(Native Method)
> java.util.concurrent.locks.LockSupport.park(LockSupport.java:304)
> org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:88)
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> java.lang.Thread.run(Thread.java:748)
> {code}
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