Daniel Dai created PIG-3132:
-------------------------------
Summary: 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
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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