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https://issues.apache.org/jira/browse/HCATALOG-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612976#comment-13612976
]
Sushanth Sowmyan commented on HCATALOG-163:
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+1, looks good to me.
> NPE when illustrating a relation
> --------------------------------
>
> Key: HCATALOG-163
> URL: https://issues.apache.org/jira/browse/HCATALOG-163
> Project: HCatalog
> Issue Type: Bug
> Components: pig
> Reporter: Min Zhou
> Assignee: Daniel Dai
> Attachments: HCATALOG-163-1.patch
>
>
> It seems that outputSchema hasn't been initialized while illustrating a
> relation in pig like below
> {noformat}
> register lib/hive-common-0.7.1.jar;
> register lib/hive-metastore-0.7.1.jar;
> register lib/libfb303.jar;
> register lib/libthrift.jar;
> register lib/hive-serde-0.7.1.jar;
> register lib/hcatalog-0.2.0.jar;
> A = LOAD 'orders' USING org.apache.hcatalog.pig.HCatLoader();
> ILLUSTRATE A;
> {noformat}
> so NPE would throw
> {noformat}
> 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)
> at org.apache.pig.Main.run(Main.java:487)
> at org.apache.pig.Main.main(Main.java:108)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:165)
> at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68)
> {noformat}
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