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Posted to mapreduce-dev@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2016/08/19 17:49:20 UTC

[jira] [Created] (MAPREDUCE-6763) Shuffle server listen queue is too small

Jason Lowe created MAPREDUCE-6763:
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             Summary: Shuffle server listen queue is too small
                 Key: MAPREDUCE-6763
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6763
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
            Reporter: Jason Lowe
            Assignee: Jason Lowe


ShuffleHandler doesn't specify a listen queue length for the server port, so it ends up getting the default listen queue length of 50.  This is too small to handle bursts of shuffle traffic on large clusters.  It's also inconsistent with the default Hadoop uses for RPC servers (default=128).



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