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https://issues.apache.org/jira/browse/MAPREDUCE-6651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Burlison updated MAPREDUCE-6651:
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    Attachment: MAPREDUCE-6651.001.patch

> MCollectorOutputHandler.cc makes misaligned accesses, coredumps ensue
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6651
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6651
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: client
>    Affects Versions: 2.7.2
>         Environment: Any platform with alignment constraints
>            Reporter: Alan Burlison
>            Assignee: Alan Burlison
>         Attachments: MAPREDUCE-6651.001.patch
>
>
> MCollectorOutputHandler.cc casts a misaligned byte pointer to a 
> KVBufferWithParititionId, which causes coredumps on any platform with 
> alignment constraints, such as SPARC. The misaligned structure needs to be 
> copied into a local, aligned structure and the data referenced from there.



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