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From: "Nicolas Liochon (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-9012)
 TestBlockReorder.testBlockLocationReorder fails
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    [ https://issues.apache.org/jira/browse/HBASE-9012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13722686#comment-13722686 ] 

Nicolas Liochon commented on HBASE-9012:
----------------------------------------

I think it's because the datanode didn't die. The call to shutdown is supposed to be synchronous, so I'm not sure it's gonna help. In the hdfs javadoc, there is this:
{quote}
org.apache.hadoop.hdfs.server.datanode.DataNode
public void shutdown()
Shut down this instance of the datanode. Returns only after shutdown is complete. This method can only be called by the offerService thread. Otherwise, deadlock might occur
{quote}

"This method can only be called by the offerService thread" is strange, but when I look at the code I don't see what it means (MiniDFSCluster#shutdownDataNodes) does not do anything special with threads.
                
> TestBlockReorder.testBlockLocationReorder fails
> -----------------------------------------------
>
>                 Key: HBASE-9012
>                 URL: https://issues.apache.org/jira/browse/HBASE-9012
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.95.2
>
>         Attachments: 9012.txt
>
>
> http://54.241.6.143/job/HBase-0.95/669/org.apache.hbase$hbase-server/testReport/junit/org.apache.hadoop.hbase.fs/TestBlockReorder/testBlockLocationReorder/
> java.net.BindException: Address already in use
> 	at java.net.PlainSocketImpl.socketBind(Native Method)
> 	at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:383)
> 	at java.net.ServerSocket.bind(ServerSocket.java:328)
> 	at java.net.ServerSocket.<init>(ServerSocket.java:194)
> 	at java.net.ServerSocket.<init>(ServerSocket.java:106)
> 	at org.apache.hadoop.hbase.fs.TestBlockReorder.testBlockLocationReorder(TestBlockReorder.java:182)

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