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https://issues.apache.org/jira/browse/HIVE-7163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14131203#comment-14131203
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Prasanth J commented on HIVE-7163:
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[~rajesh.balamohan] do you have a reproducible test case for this?
> ReduceRecordProcessor adds null values to getShuffleInputs - Causing NPE
> ------------------------------------------------------------------------
>
> Key: HIVE-7163
> URL: https://issues.apache.org/jira/browse/HIVE-7163
> Project: Hive
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Labels: tez
>
> 2014-06-01 22:35:55,435 ERROR TezChild
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor: java.lang.RuntimeException:
> java.lang.NullPointerException
> at
> org.apache.tez.runtime.InputReadyTracker$InputReadyMonitor.<init>(InputReadyTracker.java:111)
> at
> org.apache.tez.runtime.InputReadyTracker.waitForAllInputsReady(InputReadyTracker.java:90)
> at
> org.apache.tez.runtime.api.impl.TezProcessorContextImpl.waitForAllInputsReady(TezProcessorContextImpl.java:109)
> at
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor.run(ReduceRecordProcessor.java:198)
> at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:165)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:307)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:181)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:173)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:173)
> at
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:168)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)
> at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1125)
> at java.util.Collections$SetFromMap.add(Collections.java:3903)
> at java.util.AbstractCollection.addAll(AbstractCollection.java:334)
> at
> org.apache.tez.runtime.InputReadyTracker$InputReadyMonitor.<init>(InputReadyTracker.java:102)
> ... 17 more
> ReduceRecordProcessor.getShuffleInputs() adds "null" values to ShuffleInputs.
> This is passed on to to
> org.apache.hadoop.hive.ql.exec.tez.ReduceRecordProcessor: getShuffleInputs :
> null, null
> Environment: Latest codebase
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