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https://issues.apache.org/jira/browse/HDFS-5175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164835#comment-14164835
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Haohui Mai commented on HDFS-5175:
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bq. HttpsURLConnection has setSSLSocketFactory. Need to test out if it works
for regular http.
Hooking URLConnectionFactory in the filesystem object should be able address
the problem for webhdfs.
> 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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