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http://issues.apache.org/jira/browse/HADOOP-482?page=comments#action_12443042 ] 
            
Doug Cutting commented on HADOOP-482:
-------------------------------------

I wonder if we should instead either (a) always roll the info port, indicating 
this in hadoop-default.xml, or (b) simply specify a different info port when 
testing.  We already specify a different port for rpcs, and should probably use 
the same solution for selection of both ports.  The test rpc port is currently 
a constant that's passed to the MiniDFSCluster's constructor.  We could do the 
same for the info port, or perhaps put both in src/test/hadoop-site.xml.  
TestCopyFiles starts multiple namenodes, so that test would still need to 
either pass explicit port numbers, or pass a parameter N indicating that port 
default+N should be used.

> unit test hangs when a cluster is running on the same machine
> -------------------------------------------------------------
>
>                 Key: HADOOP-482
>                 URL: http://issues.apache.org/jira/browse/HADOOP-482
>             Project: Hadoop
>          Issue Type: Bug
>            Reporter: Wendy Chien
>         Assigned To: Wendy Chien
>            Priority: Minor
>         Attachments: unittest2.patch
>
>
> Instead of hanging, it should report an error.

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