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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2158) NullPointerException in DateSerializer.
Date Wed, 01 Jul 2015 15:57:05 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14610517#comment-14610517
] 

ASF GitHub Bot commented on FLINK-2158:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/flink/pull/780


> NullPointerException in DateSerializer.
> ---------------------------------------
>
>                 Key: FLINK-2158
>                 URL: https://issues.apache.org/jira/browse/FLINK-2158
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 0.9
>            Reporter: Robert Metzger
>            Assignee: Robert Metzger
>
> A user reported the following issue to me.
> {code}
> The data preparation for task 'GroupReduce (GroupReduce at main(XXX.java:96))' , caused
an error: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated
due to an exception: null
>         at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:472)
>         at org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:362)
>         at org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:217)
>         at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger
Reading Thread' terminated due to an exception: null
>         at org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:607)
>         at org.apache.flink.runtime.operators.RegularPactTask.getInput(RegularPactTask.java:1134)
>         at org.apache.flink.runtime.operators.GroupReduceDriver.prepare(GroupReduceDriver.java:94)
>         at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:466)
>         ... 3 more
> Caused by: java.io.IOException: Thread 'SortMerger Reading Thread' terminated due to
an exception: null
>         at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:785)
> Caused by: java.lang.NullPointerException
>         at org.apache.flink.api.common.typeutils.base.DateSerializer.deserialize(DateSerializer.java:72)
>         at org.apache.flink.api.common.typeutils.base.DateSerializer.deserialize(DateSerializer.java:28)
>         at org.apache.flink.api.java.typeutils.runtime.PojoSerializer.deserialize(PojoSerializer.java:487)
>         at org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:136)
>         at org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:30)
>         at org.apache.flink.runtime.plugable.ReusingDeserializationDelegate.read(ReusingDeserializationDelegate.java:57)
>         at org.apache.flink.runtime.io.network.api.serialization.SpillingAdaptiveSpanningRecordDeserializer.getNextRecord(SpillingAdaptiveSpanningRecordDeserializer.java:111)
>         at org.apache.flink.runtime.io.network.api.reader.AbstractRecordReader.getNextRecord(AbstractRecordReader.java:64)
>         at org.apache.flink.runtime.io.network.api.reader.MutableRecordReader.next(MutableRecordReader.java:34)
>         at org.apache.flink.runtime.operators.util.ReaderIterator.next(ReaderIterator.java:59)
>         at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ReadingThread.go(UnilateralSortMerger.java:1020)
>         at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:781)
> {code}
> I'm investigating it ...



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