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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7959) WebHdfs logging is missing on Datanode
Date Wed, 25 Mar 2015 19:20:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14380576#comment-14380576
] 

Kihwal Lee commented on HDFS-7959:
----------------------------------

>I think that the right fix is to move delegation token from the URL to the header. 
Agreed. Daryn was looking at making that change, but the rolling upgrade scenario makes it
a bit complicated. Right now token in the request is very useful in correlating the requests
to a job or to a client. If token is not part of the request URI, there should be something
else for tracing and correlating requests. It could be a dummy param derived from client ID,
etc.


> WebHdfs logging is missing on Datanode
> --------------------------------------
>
>                 Key: HDFS-7959
>                 URL: https://issues.apache.org/jira/browse/HDFS-7959
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>            Priority: Critical
>         Attachments: HDFS-7959.patch
>
>
> After the conversion to netty, webhdfs requests are not logged on datanodes. The existing
jetty log only logs the non-webhdfs requests that come through the internal proxy.



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