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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] Closed: (PIG-1308) Inifinite loop in JobClient when reading from BinStorage Message: [org.apache.hadoop.mapreduce.lib.input.FileInputFormat - Total input paths to process : 2]
Date Fri, 14 May 2010 06:48:17 GMT

     [ https://issues.apache.org/jira/browse/PIG-1308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai closed PIG-1308.
---------------------------


> Inifinite loop in JobClient when reading from BinStorage Message: [org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2]
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1308
>                 URL: https://issues.apache.org/jira/browse/PIG-1308
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Viraj Bhat
>            Assignee: Pradeep Kamath
>             Fix For: 0.7.0
>
>         Attachments: PIG-1308.patch
>
>
> Simple script fails to read files from BinStorage() and fails to submit jobs to JobTracker.
This occurs with trunk and not with Pig 0.6 branch.
> {code}
> data = load 'binstoragesample' using BinStorage() as (s, m, l);
> A = foreach ULT generate   s#'key'         as value;
> X = limit A 20;
> dump X;
> {code}
> When this script is submitted to the Jobtracker, we found the following error:
> 2010-03-18 22:31:22,296 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:32:01,574 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:32:43,276 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:33:21,743 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:34:02,004 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:34:43,442 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:35:25,907 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:36:07,402 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:36:48,596 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:37:28,014 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:38:04,823 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:38:38,981 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> 2010-03-18 22:39:12,220 [main] INFO  org.apache.hadoop.mapreduce.lib.input.FileInputFormat
- Total input paths to process : 2
> Stack Trace revelead 
> at org.apache.pig.impl.io.ReadToEndLoader.init(ReadToEndLoader.java:144)
>         at org.apache.pig.impl.io.ReadToEndLoader.<init>(ReadToEndLoader.java:115)
>         at org.apache.pig.builtin.BinStorage.getSchema(BinStorage.java:404)
>         at org.apache.pig.impl.logicalLayer.LOLoad.determineSchema(LOLoad.java:167)
>         at org.apache.pig.impl.logicalLayer.LOLoad.getProjectionMap(LOLoad.java:263)
>         at org.apache.pig.impl.logicalLayer.ProjectionMapCalculator.visit(ProjectionMapCalculator.java:112)
>         at org.apache.pig.impl.logicalLayer.LOLoad.visit(LOLoad.java:210)
>         at org.apache.pig.impl.logicalLayer.LOLoad.visit(LOLoad.java:52)
>         at org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:69)
>         at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51)
>         at org.apache.pig.impl.logicalLayer.optimizer.LogicalTransformer.rebuildProjectionMaps(LogicalTransformer.java:76)
>         at org.apache.pig.impl.logicalLayer.optimizer.LogicalOptimizer.optimize(LogicalOptimizer.java:216)
>         at org.apache.pig.PigServer.compileLp(PigServer.java:883)
>         at org.apache.pig.PigServer.store(PigServer.java:564)
> The binstorage data was generated from 2 datasets using limit and union:
> {code}
> Large1 = load 'input1'  using PigStorage();
> Large2 = load 'input2' using PigStorage();
> V = limit Large1 10000;
> C = limit Large2 10000;
> U = union V, C;
> store U into 'binstoragesample' using BinStorage();
> {code}

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