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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-373) unconnected load causes exception
Date Tue, 26 Aug 2008 15:32:44 GMT

    [ https://issues.apache.org/jira/browse/PIG-373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12625771#action_12625771
] 

Olga Natkovich commented on PIG-373:
------------------------------------

Shravan,

I just tried again and here is my grunt session:

grunt> B = load 'foo' USING PigStorage() AS (s:chararray);
grunt> describe B;
{s: chararray}
grunt> C = load 'foo' USING PigStorage() AS (s:chararray);
grunt> dump C;
08/08/26 08:32:01 INFO mapReduceLayer.MapReduceLauncher: 0% complete
08/08/26 08:32:01 ERROR mapReduceLayer.MapReduceLauncher: Map reduce job failed
08/08/26 08:32:01 ERROR mapReduceLayer.MapReduceLauncher: java.io.IOException: foo does not
exist
        at org.apache.pig.backend.executionengine.PigSlicer.validate(PigSlicer.java:105)
        at org.apache.pig.impl.io.ValidatingInputFileSpec.validate(ValidatingInputFileSpec.java:59)
        at org.apache.pig.impl.io.ValidatingInputFileSpec.<init>(ValidatingInputFileSpec.java:44)
        at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:199)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:712)
        at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:347)
        at org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
        at org.apache.hadoop.mapred.jobcontrol.JobControl.run(JobControl.java:279)
        at java.lang.Thread.run(Thread.java:595)

08/08/26 08:32:01 ERROR grunt.GruntParser: java.io.IOException: Unable to open iterator for
alias: C [Job terminated with anomalous status FAILED]
        at org.apache.pig.PigServer.openIterator(PigServer.java:315)
        at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:258)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:176)
        at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:92)
        at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:58)
        at org.apache.pig.Main.main(Main.java:278)
Caused by: java.io.IOException: Job terminated with anomalous status FAILED
        ... 6 more

> unconnected load causes exception
> ---------------------------------
>
>                 Key: PIG-373
>                 URL: https://issues.apache.org/jira/browse/PIG-373
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: types_branch
>            Reporter: Olga Natkovich
>            Assignee: Shravan Matthur Narayanamurthy
>             Fix For: types_branch
>
>         Attachments: 373-1.patch, 373.patch
>
>
> Load expects to be connected to another operator and when it is not,an exception is raised.
Two scripts that cause this behavior
> grunt> B = load 'foo' USING PigStorage() AS (s:chararray);
> grunt> describe B;
> grunt> B = load 'foo' USING PigStorage() AS (s:chararray);
> grunt> dump B;

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