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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6336) Cannot download file via webhdfs when wildcard is enabled
Date Sun, 04 May 2014 03:12:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yongjun Zhang updated HDFS-6336:
--------------------------------

    Status: Patch Available  (was: Open)

This webhdfs issue is similar to the namenode web UI problem reported in https://issues.apache.org/jira/browse/HDFS-4471
(which is fixed by [~andrew.wang]). I made a similar fix here. 

I attempted to create a unit test case by enabling wildcard address, but was not successful.
I did the test on a cluster of 4 nodes before and after the fix, to see the fix resolve the
problem.

Thanks Andrew for some consultation.



> Cannot download file via webhdfs when wildcard is enabled
> ---------------------------------------------------------
>
>                 Key: HDFS-6336
>                 URL: https://issues.apache.org/jira/browse/HDFS-6336
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode, webhdfs
>    Affects Versions: 2.4.0
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>         Attachments: HDFS-6336.001.patch
>
>
> With wildcard is enabled, issuing a webhdfs command like
> {code}
> http://yjztvm2.private:50070/webhdfs/v1/tmp?op=OPEN
> {code}
> would give
> {code}
> http://yjztvm3.private:50075/webhdfs/v1/tmp?op=OPEN&namenoderpcaddress=0.0.0.0:8020&offset=0
> {"RemoteException":{"exception":"ConnectException","javaClassName":"java.net.ConnectException","message":"Call
From yjztvm3.private/192.168.142.230 to 0.0.0.0:8020 failed on connection exception: java.net.ConnectException:
Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused"}}
> {code}



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