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From: "Daryn Sharp (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HDFS-5263) Delegation token is not created
 generateNodeDataHeader method of NamenodeJspHelper$NodeListJsp
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    [ https://issues.apache.org/jira/browse/HDFS-5263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783109#comment-13783109 ] 

Daryn Sharp commented on HDFS-5263:
-----------------------------------

Looks good with a cursory glance, but I'm a bit concerned about storing the token in the instance.  Is that necessary?

> Delegation token is not created generateNodeDataHeader method of NamenodeJspHelper$NodeListJsp
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5263
>                 URL: https://issues.apache.org/jira/browse/HDFS-5263
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode, webhdfs
>            Reporter: Vasu Mariyala
>         Attachments: HDFS-5263.patch
>
>
> When Kerberos authentication is enabled, we are unable to browse to the data nodes using ( Name node web page --> Live Nodes --> Select any of the data nodes). The reason behind this is the delegation token is not provided as part of the url in the method (generateNodeDataHeader method of NodeListJsp)
> {code}
>       String url = HttpConfig.getSchemePrefix() + d.getHostName() + ":"
>           + d.getInfoPort()
>           + "/browseDirectory.jsp?namenodeInfoPort=" + nnHttpPort + "&dir="
>           + URLEncoder.encode("/", "UTF-8")
>           + JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, nnaddr);
> {code}
> But browsing the file system using name node web page --> Browse the file system -> <any directory> is working fine as the redirectToRandomDataNode method of NamenodeJspHelper creates the delegation token
> {code}
>     redirectLocation = HttpConfig.getSchemePrefix() + fqdn + ":" + redirectPort
>         + "/browseDirectory.jsp?namenodeInfoPort="
>         + nn.getHttpAddress().getPort() + "&dir=/"
>         + (tokenString == null ? "" :
>            JspHelper.getDelegationTokenUrlParam(tokenString))
>         + JspHelper.getUrlParam(JspHelper.NAMENODE_ADDRESS, addr);
> {code}
> I will work on providing a patch for this issue.



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