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Date: Sat, 28 Feb 2015 01:17:04 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HADOOP-11226) ipc.Client has to use
 setTrafficClass() with IPTOS_LOWDELAY|IPTOS_RELIABILITY
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    [ https://issues.apache.org/jira/browse/HADOOP-11226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341146#comment-14341146 ] 

Hadoop QA commented on HADOOP-11226:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12701499/HADOOP-11226.4.patch
  against trunk revision edceced.

    {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 tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/5796//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5796//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, HADOOP-11226.4.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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