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Milind Bhandarkar commented on MAPREDUCE-4049: ---------------------------------------------- Luke, I do not know of any tests done with 0.20.203 (Avner do you have any numbers?). The tests that compared vanilla 1.0.x & with pluggable shuffle (with default plugin) do not show any measurable difference. > 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: 1.1.0, 1.0.3, 2.0.0-alpha, 3.0.0 > Reporter: Avner BenHanoch > Labels: merge, plugin, rdma, shuffle > Attachments: HADOOP-1.0.2.patch, HADOOP-1.0.x.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) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira