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Posted to mapreduce-issues@hadoop.apache.org by "Jeffrey Naisbitt (JIRA)" <ji...@apache.org> on 2011/06/23 17:49:47 UTC
[jira] [Updated] (MAPREDUCE-2618) 0 map, 0 reduce job fails with
Null Pointer Exception
[ https://issues.apache.org/jira/browse/MAPREDUCE-2618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeffrey Naisbitt updated MAPREDUCE-2618:
----------------------------------------
Status: Patch Available (was: Open)
> 0 map, 0 reduce job fails with Null Pointer Exception
> -----------------------------------------------------
>
> Key: MAPREDUCE-2618
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2618
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Jeffrey Naisbitt
> Assignee: Jeffrey Naisbitt
> Attachments: MAPREDUCE-2618.patch
>
>
> A 0 map, 0 reduce job fails with an NPE. This case works fine on hadoop-0.20.x. The job should succeed and run setup/cleanup code - with no tasks. Below is the stacktrace:
> 11/06/05 19:35:37 WARN mapred.ClientServiceDelegate:
> StackTrace: java.lang.NullPointerException
> at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.getTaskAttemptCompletionEvents(JobImpl.java:498)
> at
> org.apache.hadoop.mapreduce.v2.app.client.MRClientService$MRClientProtocolHandler.getTaskAttemptCompletionEvents(MRClientService.java:290)
> at
> org.apache.hadoop.mapreduce.v2.api.impl.pb.service.MRClientProtocolPBServiceImpl.getTaskAttemptCompletionEvents(MRClientProtocolPBServiceImpl.java:139)
> at
> org.apache.hadoop.yarn.proto.MRClientProtocol$MRClientProtocolService$2.callBlockingMethod(MRClientProtocol.java:195)
> at org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine$TunnelResponder.call(ProtoOverHadoopRpcEngine.java:168)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:420)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1406)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1402)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1094)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1400)
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