Return-Path: X-Original-To: apmail-flink-dev-archive@www.apache.org Delivered-To: apmail-flink-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B56C118B59 for ; Thu, 4 Jun 2015 09:15:40 +0000 (UTC) Received: (qmail 15681 invoked by uid 500); 4 Jun 2015 09:15:40 -0000 Delivered-To: apmail-flink-dev-archive@flink.apache.org Received: (qmail 15622 invoked by uid 500); 4 Jun 2015 09:15:40 -0000 Mailing-List: contact dev-help@flink.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@flink.apache.org Delivered-To: mailing list dev@flink.apache.org Received: (qmail 15564 invoked by uid 99); 4 Jun 2015 09:15:40 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 04 Jun 2015 09:15:40 +0000 Date: Thu, 4 Jun 2015 09:15:40 +0000 (UTC) From: "Robert Metzger (JIRA)" To: dev@flink.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (FLINK-2158) NullPointerException in DateSerializer. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Robert Metzger created FLINK-2158: ------------------------------------- Summary: 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 ... -- This message was sent by Atlassian JIRA (v6.3.4#6332)