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From "Mithun Radhakrishnan (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-2163) MiniMRCluster does not start correctly.
Date Thu, 28 Oct 2010 10:40:19 GMT
MiniMRCluster does not start correctly.
---------------------------------------

                 Key: MAPREDUCE-2163
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2163
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: test
    Affects Versions: 0.22.0
            Reporter: Mithun Radhakrishnan


Test code written against MiniMRCluster does not execute correctly. The MiniDFSCluster instance
comes up alright, but when the MiniMRCluster starts up, one gets hundreds of stack-traces
of the following kind:

10/10/28 15:55:47 INFO ipc.Server: IPC Server handler 2 on 61176, call getBuildVersion() from
127.0.0.1:61181: error: java.io.IOException: java.lang.annotation.IncompleteAnnotationException:
org.apache.hadoop.HadoopVersionAnnotation missing element srcChecksum
java.io.IOException: java.lang.annotation.IncompleteAnnotationException: org.apache.hadoop.HadoopVersionAnnotation
missing element srcChecksum
	at sun.reflect.annotation.AnnotationInvocationHandler.invoke(AnnotationInvocationHandler.java:53)
	at $Proxy7.srcChecksum(Unknown Source)
	at org.apache.hadoop.util.VersionInfo.getSrcChecksum(VersionInfo.java:100)
	at org.apache.hadoop.util.VersionInfo.getBuildVersion(VersionInfo.java:108)
	at org.apache.hadoop.mapred.JobTracker.getBuildVersion(JobTracker.java:2367)
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.hadoop.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:349)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1399)
	at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1395)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1114)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1393)

It would appear that the hadoop-mapred-test-0.22.0-SNAPSHOT.jar hosted on Apache might be
missing the srcChecksum element, wherever HadoopVersionAnnotation is being used.

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