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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6763) Shuffle server listen queue is too small
Date Fri, 19 Aug 2016 17:53:20 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated MAPREDUCE-6763:
----------------------------------
    Status: Patch Available  (was: Open)

> 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
>         Attachments: MAPREDUCE-6763.001.patch
>
>
> 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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