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https://issues.apache.org/jira/browse/PIG-4418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487651#comment-14487651
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Rohini Palaniswamy commented on PIG-4418:
-----------------------------------------
Fixing the NPE is easy. But would be nice to know why it is happening and if
there is an underlying issue that needs to be fixed. Probably should just go
through with the fix of doing a null check now as there are more reports.
bq. However after the failed task attempt, the job continues.
You mean the task goes through fine on retry?
> NullPointerException in JVMReuseImpl
> ------------------------------------
>
> Key: PIG-4418
> URL: https://issues.apache.org/jira/browse/PIG-4418
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.15.0
> Reporter: Jeff Zhang
>
> {code}
> 2015-02-13 15:17:11,067 INFO [TezChild] task.TezTaskRunner: Encounted an
> error while executing task: attempt_1423730493153_0019_1_04_000002_0
> java.lang.NullPointerException
> at org.apache.pig.JVMReuseImpl.cleanupStaticData(JVMReuseImpl.java:46)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.close(PigProcessor.java:175)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.close(LogicalIOProcessorRuntimeTask.java:338)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:181)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:171)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:171)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:166)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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