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https://issues.apache.org/jira/browse/PIG-3132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daniel Dai updated PIG-3132:
----------------------------
Attachment: PIG-3132-1.patch
> NPE when illustrating a relation with HCatLoader
> -------------------------------------------------
>
> Key: PIG-3132
> URL: https://issues.apache.org/jira/browse/PIG-3132
> Project: Pig
> Issue Type: Bug
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.12
>
> Attachments: PIG-3132-1.patch
>
>
> Get NPE exception when illustrate a relation with HCatLoader:
> {code}
> A = LOAD 'studenttab10k' USING org.apache.hcatalog.pig.HCatLoader();
> illustrate A;
> {code}
> Exception:
> {code}
> java.lang.NullPointerException
> at
> org.apache.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:274)
> at
> org.apache.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:238)
> at
> org.apache.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:61)
> at
> org.apache.pig.impl.io.ReadToEndLoader.getNextHelper(ReadToEndLoader.java:210)
> at
> org.apache.pig.impl.io.ReadToEndLoader.getNext(ReadToEndLoader.java:190)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLoad.getNext(POLoad.java:129)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:267)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:262)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
> at
> org.apache.pig.pen.LocalMapReduceSimulator.launchPig(LocalMapReduceSimulator.java:194)
> at
> org.apache.pig.pen.ExampleGenerator.getData(ExampleGenerator.java:257)
> at
> org.apache.pig.pen.ExampleGenerator.readBaseData(ExampleGenerator.java:222)
> at
> org.apache.pig.pen.ExampleGenerator.getExamples(ExampleGenerator.java:154)
> at org.apache.pig.PigServer.getExamples(PigServer.java:1245)
> at
> org.apache.pig.tools.grunt.GruntParser.processIllustrate(GruntParser.java:698)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.Illustrate(PigScriptParser.java:591)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:306)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:188)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:164)
> at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:67)
> {code}
> HCatalog side is tracked with HCATALOG-163.
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