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From "Uma Maheswara Rao G (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2768) BackupNode stop can not close proxy connections because it is not a proxy instance.
Date Sun, 08 Jan 2012 13:41:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uma Maheswara Rao G updated HDFS-2768:
--------------------------------------

    Attachment: HDFS-2768.patch

Problem here is EditLogBackupStream is not able to close the proxy.
Corrected in this patch.No tests included, Observed the above logs in TestBackupNode. No error
logs with this patch.
                
> BackupNode stop can not close proxy connections because it is not a proxy instance.
> -----------------------------------------------------------------------------------
>
>                 Key: HDFS-2768
>                 URL: https://issues.apache.org/jira/browse/HDFS-2768
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.24.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>         Attachments: HDFS-2768.patch
>
>
> Observe this from BackupNode tests:
> java.lang.IllegalArgumentException: not a proxy instance
> 	at java.lang.reflect.Proxy.getInvocationHandler(Unknown Source)
> 	at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:557)
> 	at org.apache.hadoop.hdfs.server.namenode.BackupNode.stop(BackupNode.java:194)
> 	at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testCheckpoint(TestBackupNode.java:355)
> 	at org.apache.hadoop.hdfs.server.namenode.TestBackupNode.testBackupNode(TestBackupNode.java:241)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at junit.framework.TestCase.runTest(TestCase.java:168)
> 	at junit.framework.TestCase.runBare(TestCase.java:134)
> 	at junit.framework.TestResult$1.protect(TestResult.java:110)

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