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From "Arpit Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8878) uppercase hostname causes hadoop dfs calls with webhdfs filesystem to fail
Date Thu, 04 Oct 2012 01:11:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arpit Gupta updated HADOOP-8878:

    Attachment: HADOOP-8878.branch-1.patch

patch for branch-1
> uppercase hostname causes hadoop dfs calls with webhdfs filesystem to fail
> --------------------------------------------------------------------------
>                 Key: HADOOP-8878
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8878
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.0.3, 1.1.0, 1.2.0
>            Reporter: Arpit Gupta
>            Assignee: Arpit Gupta
>         Attachments: HADOOP-8878.branch-1.patch
> This was noticed on a secure cluster where the namenode had an upper case hostname and
the following command was issued
> hadoop dfs -ls webhdfs://NN:PORT/PATH
> the above command failed because delegation token retrieval failed.
> Upon looking at the kerberos logs it was determined that we tried to get the ticket for
kerberos principal with upper case hostnames and that host did not exit in kerberos. We should
convert the hostnames to lower case. Take a look at HADOOP-7988 where the same fix was applied
on a different class.
> I have noticed this issue exists on branch-1. Will investigate trunk and branch-2 and
update accordingly.

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