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https://issues.apache.org/jira/browse/TEZ-3980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16589304#comment-16589304
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Sergey Shelukhin commented on TEZ-3980:
---------------------------------------
+1 non-binding
> ShuffleRunner: the wake loop needs to check for shutdown
> --------------------------------------------------------
>
> Key: TEZ-3980
> URL: https://issues.apache.org/jira/browse/TEZ-3980
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
> Attachments: TEZ-3980.1.patch
>
>
> In the ShuffleRunner threads, there's a loop which does not terminate if the
> task threads get killed.
> {code}
> while ((runningFetchers.size() >= numFetchers ||
> pendingHosts.isEmpty())
> && numCompletedInputs.get() < numInputs) {
> inputContext.notifyProgress();
> boolean ret = wakeLoop.await(1000, TimeUnit.MILLISECONDS);
> }
> {code}
> The wakeLoop signal does not exit this out of the loop and is missing a break
> for shut-down.
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