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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-6295) PartitionerDecorator may close partitioners while CustomRunnable are active during query cancellation
Date Tue, 17 Apr 2018 20:55:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-6295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16441488#comment-16441488
] 

ASF GitHub Bot commented on DRILL-6295:
---------------------------------------

Github user vrozov commented on the issue:

    https://github.com/apache/drill/pull/1208
  
    @parthchandra Please review


> PartitionerDecorator may close partitioners while CustomRunnable are active during query
cancellation
> -----------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-6295
>                 URL: https://issues.apache.org/jira/browse/DRILL-6295
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Vlad Rozov
>            Assignee: Vlad Rozov
>            Priority: Critical
>             Fix For: 1.14.0
>
>
> During query cancellation, in case {{PartitionerDecorator.executeMethodLogic()}} is active
(waiting on the {{latch}}), the wait will be interrupted and {{Futures}} cancelled, but there
is no guarantee that all {{CustomRunnable}} terminate before returning from {{PartitionerDecorator.executeMethodLogic()}}.
On exit, both income and outgoing batches are cleared, leading to clearing of underlying {{Vectors}}
and {{DrillBufs}}. This eventually causes unallocated memory access and JVM crash as {{CustomRunnable}}
may execute after income/outgoing batches are cleared.



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