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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11505) hadoop-mapreduce-client-nativetask uses bswap where be32toh is needed, doesn't work on non-x86
Date Mon, 27 Jul 2015 18:30:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643170#comment-14643170
] 

Colin Patrick McCabe commented on HADOOP-11505:
-----------------------------------------------

Yeah, it appears to be making assumptions about struct padding.

Hmm.  I think the big question is, do we have some way of testing this?  If so, I'd be happy
to roll that fix into this JIRA.

> hadoop-mapreduce-client-nativetask uses bswap where be32toh is needed, doesn't work on
non-x86
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-11505
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11505
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>              Labels: BB2015-05-TBR
>         Attachments: HADOOP-11505.001.patch, HADOOP-11505.003.patch, HADOOP-11505.004.patch
>
>
> hadoop-mapreduce-client-nativetask fails to use x86 optimizations in some cases.  Also,
on some alternate, non-x86, non-ARM architectures the generated code is incorrect.  Thanks
to Steve Loughran and Edward Nevill for finding this.



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