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https://issues.apache.org/jira/browse/HDFS-5175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183373#comment-14183373
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Ming Ma commented on HDFS-5175:
-------------------------------
Yeah, we do have dependency on org.apache.httpcomponents' httpclient. That
might be enough for HDFS. My main question is if folks are ok to have webHDFS
use org.apache.httpcomponents' httpclient instead of URLConnection.
> 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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