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From "Avner BenHanoch (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4049) plugin for generic shuffle service
Date Thu, 05 Apr 2012 18:20:26 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247461#comment-13247461
] 

Avner BenHanoch commented on MAPREDUCE-4049:
--------------------------------------------

Thanks Aaron, I was not aware of that and it seems strange to me (also the error message is
not helping).  The patch is for 1.0.2, not for the trunk.
It was created using: *svn diff src/mapred/ src/test/*.
It runs smoothly in my env.
I am able to apply it on clean 1.0.2 tree using *patch -p0 < patch-file*
I hope it can be reviewed based on the attached source/patch.
Otherwise, I'll try test-patch after Passover :)

                
> plugin for generic shuffle service
> ----------------------------------
>
>                 Key: MAPREDUCE-4049
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4049
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: performance, task, tasktracker
>    Affects Versions: 0.23.1, 1.0.1
>            Reporter: Avner BenHanoch
>              Labels: merge, plugin, rdma, shuffle
>             Fix For: 1.0.2
>
>         Attachments: HADOOP-1.0.2.patch, HADOOP-1.0.x.patch, Hadoop Shuffle Consumer
Plugin TLD.rtf, Hadoop Shuffle Provider Plugin TLD.rtf, MAPREDUCE-4049-branch-1.0.2.patch,
mapred-site.xml, mapred.diff, src.tgz, test.diff
>
>
> Support generic shuffle service as set of two plugins: ShuffleProvider & ShuffleConsumer.
> This will satisfy the following needs:
> # Better shuffle and merge performance. For example: we are working on shuffle plugin
that performs shuffle over RDMA in fast networks (10gE, 40gE, or Infiniband) instead of using
the current HTTP shuffle. Based on the fast RDMA shuffle, the plugin can also utilize a suitable
merge approach during the intermediate merges. Hence, getting much better performance.
> # Satisfy MAPREDUCE-3060 - generic shuffle service for avoiding hidden dependency of
NodeManager with a specific version of mapreduce shuffle (currently targeted to 0.24.0).
> References:
> # Hadoop Acceleration through Network Levitated Merging, by Prof. Weikuan Yu from Auburn
University with others, [http://pasl.eng.auburn.edu/pubs/sc11-netlev.pdf]
> # I am attaching 2 documents with suggested Top Level Design for both plugins (currently,
based on 1.0 branch)

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