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From "Bill Habermaas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5191) After creation and startup of the hadoop namenode on AIX or Solaris, you will only be allowed to connect to the namenode via hostname but not IP.
Date Wed, 04 Mar 2009 19:43:56 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bill Habermaas updated HADOOP-5191:
-----------------------------------

             Assignee: Bill Habermaas
    Affects Version/s:     (was: 0.18.2)
                       0.19.1
               Status: Patch Available  (was: Open)

Patch to checkPath method in hadoop/hdfs/DistributedFileSystem.java to allow use of IP address
as well as hostname.  The unit test included here does a simple test of getting a FileSystem
object using hostname and then getting a FileSystem object using IP address (which didn't
work before). 

> After creation and startup of the hadoop namenode on AIX or Solaris, you will only be
allowed to connect to the namenode via hostname but not IP.
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5191
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5191
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.19.1
>         Environment: AIX 6.1 or Solaris
>            Reporter: Bill Habermaas
>            Assignee: Bill Habermaas
>            Priority: Minor
>         Attachments: 5191-1.patch, hadoop-5191.patch
>
>
> After creation and startup of the hadoop namenode on AIX or Solaris, you will only be
allowed to connect to the namenode via hostname but not IP.
> fs.default.name=hdfs://p520aix61.mydomain.com:9000
> Hostname for box is p520aix and the IP is 10.120.16.68
> If you use the following url, "hdfs://10.120.16.68", to connect to the namenode, the
exception that appears below occurs. You can only connect successfully if "hdfs://p520aix61.mydomain.com:9000"
is used. 
> Exception in thread "Thread-0" java.lang.IllegalArgumentException: Wrong FS: hdfs://10.120.16.68:9000/testdata,
expected: hdfs://p520aix61.mydomain.com:9000
> 	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:320)
> 	at org.apache.hadoop.dfs.DistributedFileSystem.checkPath(DistributedFileSystem.java:84)
> 	at org.apache.hadoop.dfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:122)
> 	at org.apache.hadoop.dfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:390)
> 	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:667)
> 	at TestHadoopHDFS.run(TestHadoopHDFS.java:116)

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