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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11226) ipc.Client has to use setTrafficClass() with IPTOS_LOWDELAY|IPTOS_RELIABILITY
Date Sat, 28 Feb 2015 00:05:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341061#comment-14341061

Hadoop QA commented on HADOOP-11226:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision cf51ff2.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5795//console

This message is automatically generated.

> ipc.Client has to use setTrafficClass() with IPTOS_LOWDELAY|IPTOS_RELIABILITY
> -----------------------------------------------------------------------------
>                 Key: HADOOP-11226
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11226
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.6.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>              Labels: Infiniband
>         Attachments: HADOOP-11226.1.patch, HADOOP-11226.2.patch, HADOOP-11226.3.patch
> During heavy shuffle, packet loss for IPC packets was observed from a machine.
> Avoid packet-loss and speed up transfer by using 0x14 QOS bits for the packets.

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