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https://issues.apache.org/jira/browse/PIG-1142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789215#action_12789215
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Hadoop QA commented on PIG-1142:
--------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12427671/PIG-1142-2.patch
against trunk revision 889346.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/115/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/115/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/115/console
This message is automatically generated.
> Got NullPointerException merge join with pruning
> ------------------------------------------------
>
> Key: PIG-1142
> URL: https://issues.apache.org/jira/browse/PIG-1142
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Jing Huang
> Assignee: Daniel Dai
> Fix For: 0.6.0
>
> Attachments: PIG-1142-1.patch, PIG-1142-2.patch
>
>
> Here is my pig script:
> register $zebraJar;
> --fs -rmr $outputDir
> a1 = LOAD '$inputDir/small1' USING
> org.apache.hadoop.zebra.pig.TableLoader('count,seed,int1,str2');
> a2 = LOAD '$inputDir/small2' USING
> org.apache.hadoop.zebra.pig.TableLoader('count,seed,int1,str2');
> sort1 = order a1 by str2;
> sort2 = order a2 by str2;
> --store sort1 into '$outputDir/smallsorted11' using
> org.apache.hadoop.zebra.pig.TableStorer('[count,seed,int1,str2]');
> --store sort2 into '$outputDir/smallsorted21' using
> org.apache.hadoop.zebra.pig.TableStorer('[count,seed,int1,str2]');
> rec1 = load '$outputDir/smallsorted11' using
> org.apache.hadoop.zebra.pig.TableLoader();
> rec2 = load '$outputDir/smallsorted21' using
> org.apache.hadoop.zebra.pig.TableLoader();
> joina = join rec1 by str2, rec2 by str2 using "merge" ;
> E = foreach joina generate $0 as count, $1 as seed, $2 as int1, $3 as
> str2;
> --limitedVals = LIMIT E 5;
> --dump limitedVals;
> store E into '$outputDir/smalljoin2' using
> org.apache.hadoop.zebra.pig.TableStorer('');
> ============
> Here is the stacktrace:
> java.lang.NullPointerException at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLocalRearrange.getNext(POLocalRearrange.java:312)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.extractKeysFromTuple(POMergeJoin.java:464)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.getNext(POMergeJoin.java:341)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:260)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:237)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:253)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.close(PigMapBase.java:107)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57) at
> org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358) at
> org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) at
> org.apache.hadoop.mapred.Child.main(Child.java:159)
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