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From "Deneche A. Hakim (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3445) BufferAllocator.buffer() implementations should throw an OutOfMemoryRuntimeException
Date Thu, 02 Jul 2015 15:06:04 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612050#comment-14612050
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Deneche A. Hakim commented on DRILL-3445:
-----------------------------------------

Once this issue has been resolved I will work on DRILL-2974. Thx

> BufferAllocator.buffer() implementations should throw an OutOfMemoryRuntimeException
> ------------------------------------------------------------------------------------
>
>                 Key: DRILL-3445
>                 URL: https://issues.apache.org/jira/browse/DRILL-3445
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Data Types, Execution - Relational Operators
>    Affects Versions: 1.0.0
>            Reporter: Deneche A. Hakim
>            Assignee: Hanifi Gunes
>             Fix For: 1.2.0
>
>         Attachments: DRILL-3445.1.patch.txt
>
>
> current implementations of BufferAllocator.buffer() return null if it can't allocate
the buffer because of direct memory or fragment limits., but many places in the code don't
actually check if the buffer is null before trying to access it, this will result in confusing
NullPointerException(s) when we are in fact running out of memory.
> We should change the implementations to throw an OutOfMemoryRuntimeException instead.
Drill already handles this exception properly in most cases and displays a proper error message
to the user.



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