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From "Xu Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-173) NullPointerException when running my Pig script with streaming
Date Fri, 28 Mar 2008 22:52:26 GMT

     [ https://issues.apache.org/jira/browse/PIG-173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xu Zhang updated PIG-173:
-------------------------

    Description: 
Execute the following Pig statements in Grunt or with a Pig script, and a NullPointerException
is generated.

{noformat}
grunt> A = load '/user/pig/tests/data/singlefile/studentcolon10k' using PigStorage(':');
grunt> B = foreach A generate $2, $1, $0;
grunt> define X `awk 'BEGIN {FS = ","; OFS = "\t"} {print $3, $2, $1}'` input (stdin using
PigStorage(','));
grunt> C = stream B through X;
grunt> D = foreach C generate $0, $1;
2008-03-28 14:17:20,978 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
        at org.apache.pig.impl.logicalLayer.LOEval.outputSchema(LOEval.java:69)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:1508)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:691)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:492)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:342)
        at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:47)
        at org.apache.pig.PigServer.registerQuery(PigServer.java:261)
        at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:462)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:226)
        at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:73)
        at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:54)
        at org.apache.pig.Main.main(Main.java:253)

2008-03-28 14:17:20,979 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
{noformat}

  was:
Execute the following Pig statements in Grunt or with a Pig script, and a NullPointerException
is generated.

{noformat}
grunt> A = load '/user/pig/tests/data/singlefile/studentcolon10k' using PigStorage(':');
grunt> B = foreach A generate $2, $1, $0;
grunt> define X `awk 'BEGIN {FS = ","; OFS = "\t"} {print $3, $2, $1}'` input (stdin using
PigStorage(','));
grunt> C = stream B through X;
grunt> D = foreach C generate $0, $1;
2008-03-28 14:17:20,978 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
        at org.apache.pig.impl.logicalLayer.LOEval.outputSchema(LOEval.java:69)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:1508)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:691)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:492)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:342)
        at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:47)
        at org.apache.pig.PigServer.registerQuery(PigServer.java:261)
        at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:462)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:226)
        at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:73)
        at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:54)
        at org.apache.pig.Main.main(Main.java:253)

2008-03-28 14:17:20,979 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
{code}


> NullPointerException when running my Pig script with streaming
> --------------------------------------------------------------
>
>                 Key: PIG-173
>                 URL: https://issues.apache.org/jira/browse/PIG-173
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Xu Zhang
>            Assignee: Arun C Murthy
>            Priority: Critical
>
> Execute the following Pig statements in Grunt or with a Pig script, and a NullPointerException
is generated.
> {noformat}
> grunt> A = load '/user/pig/tests/data/singlefile/studentcolon10k' using PigStorage(':');
> grunt> B = foreach A generate $2, $1, $0;
> grunt> define X `awk 'BEGIN {FS = ","; OFS = "\t"} {print $3, $2, $1}'` input (stdin
using
> PigStorage(','));
> grunt> C = stream B through X;
> grunt> D = foreach C generate $0, $1;
> 2008-03-28 14:17:20,978 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
>         at org.apache.pig.impl.logicalLayer.LOEval.outputSchema(LOEval.java:69)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:1508)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:691)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:492)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:342)
>         at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:47)
>         at org.apache.pig.PigServer.registerQuery(PigServer.java:261)
>         at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:462)
>         at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:226)
>         at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:73)
>         at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:54)
>         at org.apache.pig.Main.main(Main.java:253)
> 2008-03-28 14:17:20,979 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.NullPointerException
> {noformat}

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