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https://issues.apache.org/jira/browse/HDFS-2768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185408#comment-13185408
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Uma Maheswara Rao G commented on HDFS-2768:
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Eli, I think in BPOfferSevice also we used
DatanodeProtocolClientSideTranslatorPB directly instead of DatanodeProtocol. In
that class many places already specialized to
DatanodeProtocolClientSideTranslatorPB.
Do you think we can change that as well to DatanodeProtocol along with it ?
(or) is it ok, as **TranslatorPBs are mainly delegating calls to actual
proxies?
> 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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