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https://issues.apache.org/jira/browse/HIVE-13858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15304781#comment-15304781
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Prasanth Jayachandran commented on HIVE-13858:
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LGMT, +1. Pending tests
> LLAP: A preempted task can end up waiting on completeInitialization if some
> part of the executing code suppressed the interrupt
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-13858
> URL: https://issues.apache.org/jira/browse/HIVE-13858
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Critical
> Labels: llap
> Attachments: HIVE-13858.01.patch, HIVE-13858.02.patch,
> HIVE-13858.03.patch
>
>
> An interrupt along with a HiveProcessor.abort call is made when attempting to
> preempt a task.
> In this specific case, the task was in the middle of HDFS IO - which
> 'handled' the interrupt by retrying. As a result the interrupt status on the
> thread was reset - so instead of skipping the future.get in
> completeInitialization - the task ended up blocking there.
> End result - a single executor slot permanently blocked in LLAP. Depending on
> what else is running - this can cause a cluster level deadlock.
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