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https://issues.apache.org/jira/browse/HIVE-4756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13690493#comment-13690493
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Brock Noland commented on HIVE-4756:
------------------------------------

OK, I think figured it out. I develop on a RH6.3 host and our internal parallel 
test environment is also RH6.3. The failures I pasted above were from the 
parallel test environment. As they failed locally I thought this was ubiquitous.

Long story short, it this looks to be caused by YARN memory limits in 
additional to glibc's new per-thread arena allocator. Setting the environment 
variable MALLOC_ARENA_MAX=4 before starting the test fixes the failures. 
Therefore the fix could be to patch our testutils/hadoop script similar to 
HADOOP-7154 or to upgrade to 2.0.4-alpha (or 5) since for MiniMR they stopped 
limiting memory in MAPREDUCE-5094.

I am fine with either but unless there is known issues with a new version of 
Hadoop I'd prefer that approach for dogfooding purposes.
                
> Upgrade Hadoop 0.23 profile to 2.0.5-alpha
> ------------------------------------------
>
>                 Key: HIVE-4756
>                 URL: https://issues.apache.org/jira/browse/HIVE-4756
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Brock Noland
>            Assignee: Brock Noland
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4756.patch
>
>
> The minimr tests fail at present with the 0.23 profile. In my tests upgrading 
> to 2.0.5-alpha fixes this.

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