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https://issues.apache.org/jira/browse/HADOOP-11226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14355067#comment-14355067
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Hudson commented on HADOOP-11226:
---------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #2078 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2078/])
HADOOP-11226. Add a configuration to set ipc.Client's traffic class with
IPTOS_LOWDELAY|IPTOS_RELIABILITY. Contributed by Gopal V. (ozawa: rev
54639c7d7a34f4a46e8df50d57c79bab34b1ac07)
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
* hadoop-common-project/hadoop-common/CHANGES.txt
* hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
> Add a configuration to set ipc.Client's traffic class with
> IPTOS_LOWDELAY|IPTOS_RELIABILITY
> -------------------------------------------------------------------------------------------
>
> Key: HADOOP-11226
> URL: https://issues.apache.org/jira/browse/HADOOP-11226
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 2.6.0
> Reporter: Gopal V
> Assignee: Gopal V
> Labels: Infiniband
> Fix For: 2.8.0
>
> Attachments: HADOOP-11226.1.patch, HADOOP-11226.2.patch,
> HADOOP-11226.3.patch, HADOOP-11226.4.patch, HADOOP-11226.5.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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