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https://issues.apache.org/jira/browse/HADOOP-11226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14907009#comment-14907009
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Bikas Saha commented on HADOOP-11226:
-------------------------------------
Comments would help this line.
{code}+ this.socket.setPerformancePreferences(1, 2, 0);{code}
> 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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