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From "Maysam Yabandeh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5175) Provide clients a way to set IP header bits on connections
Date Wed, 14 Oct 2015 23:26:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14958002#comment-14958002

Maysam Yabandeh commented on HDFS-5175:

Any update on this patch? Our network infrastructure showed interest in labeling hadoop data
traffic, and this jira could have been used for this purpose. I guess other companies must
have similar applications that could benefit from this patch.

> Provide clients a way to set IP header bits on connections
> ----------------------------------------------------------
>                 Key: HDFS-5175
>                 URL: https://issues.apache.org/jira/browse/HDFS-5175
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.5-alpha
>            Reporter: Lohit Vijayarenu
> It would be very helpful if we had ability for clients to set IP headers when they make
socket connections for data transfers. We were looking into setting up QoS using DSCP bit
and saw that there is no easy way to let clients pass down a specific value when clients make
connection to DataNode.
> As a quick fix we did something similar to io.file.buffer.size where client could pass
down DSCP integer value and when DFSClient opens a stream, it could set the value on socket
using setTrafficClass
> Opening this JIRA to get more inputs from others who have had experience and might have
already thought about this. 

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