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From "Brahma Reddy Battula (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3123) [Backup NameNode]BNN is getting Nullpointer execption and shuttingdown When NameNode got formatted
Date Wed, 21 Mar 2012 07:13:39 GMT
[Backup NameNode]BNN is getting Nullpointer execption and shuttingdown When NameNode got formatted

---------------------------------------------------------------------------------------------------

                 Key: HDFS-3123
                 URL: https://issues.apache.org/jira/browse/HDFS-3123
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 0.23.4
            Reporter: Brahma Reddy Battula


Scenario 1
==========
Start NN and BNN
stop NN and BNN
Format NN and start only BNN

Then BNN as getting Nullpointer and getting shutdown 
{noformat}
12/03/20 21:26:05 ERROR ipc.RPC: Tried to call RPC.stopProxy on an object that is not a proxy.
java.lang.IllegalArgumentException: not a proxy instance
	at java.lang.reflect.Proxy.getInvocationHandler(Proxy.java:637)
	at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:591)
	at org.apache.hadoop.hdfs.server.namenode.BackupNode.stop(BackupNode.java:194)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:547)
	at org.apache.hadoop.hdfs.server.namenode.BackupNode.<init>(BackupNode.java:86)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:847)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:908)
12/03/20 21:26:05 ERROR ipc.RPC: Could not get invocation handler null for proxy class class
org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolTranslatorPB, or invocation handler is not
closeable.
12/03/20 21:26:05 ERROR namenode.NameNode: Exception in namenode join
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getFSImage(NameNode.java:609)
	at org.apache.hadoop.hdfs.server.namenode.BackupNode.stop(BackupNode.java:205)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:547)
	at org.apache.hadoop.hdfs.server.namenode.BackupNode.<init>(BackupNode.java:86)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:847)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:908)
12/03/20 21:26:05 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at HOST-10-18-40-233/10.18.40.233
************************************************************/
{noformat}

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