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Posted to dev@pig.apache.org by "Benjamin Reed (JIRA)" <ji...@apache.org> on 2009/01/06 07:11:44 UTC
[jira] Updated: (PIG-570) Large BZip files Seem to loose data in
Pig
[ https://issues.apache.org/jira/browse/PIG-570?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benjamin Reed updated PIG-570:
------------------------------
Attachment: (was: PIG-570.patch)
> Large BZip files Seem to loose data in Pig
> -------------------------------------------
>
> Key: PIG-570
> URL: https://issues.apache.org/jira/browse/PIG-570
> Project: Pig
> Issue Type: Bug
> Affects Versions: types_branch, 0.0.0, 0.1.0, site
> Environment: Pig 0.1.1/Linux / 8 Nodes hadoop 0.18.2
> Reporter: Alex Newman
> Fix For: types_branch, 0.0.0, 0.1.0, site
>
> Attachments: bzipTest.bz2
>
>
> So I don't believe bzip2 input to pig is working, at least not with large files. It seems as though map files are getting cut off. The maps complete way too quickly and the actual row of data that pig tries to process often randomly gets cut, and becomes incomplete. Here are my symptoms:
> - Maps seem to be completing in a unbelievably fast rate
> With uncompressed data
> Status: Succeeded
> Started at: Wed Dec 17 21:31:10 EST 2008
> Finished at: Wed Dec 17 22:42:09 EST 2008
> Finished in: 1hrs, 10mins, 59sec
> map 100.00%
> 4670 0 0 4670 0 0 / 21
> reduce 57.72%
> 13 0 0 13 0 0 / 4
> With bzip compressed data
> Started at: Wed Dec 17 21:17:28 EST 2008
> Failed at: Wed Dec 17 21:17:52 EST 2008
> Failed in: 24sec
> Black-listed TaskTrackers: 2
> Kind % Complete Num Tasks Pending Running Complete Killed Failed/Killed
> Task Attempts
> map 100.00%
> 183 0 0 15 168 54 / 22
> reduce 100.00%
> 13 0 0 0 13 0 / 0
> The errors we get:
> ava.lang.IndexOutOfBoundsException: Requested index 11 from tuple (rec A, 0HAW, CHIX, )
> at org.apache.pig.data.Tuple.getField(Tuple.java:176)
> at org.apache.pig.impl.eval.ProjectSpec.eval(ProjectSpec.java:84)
> at org.apache.pig.impl.eval.SimpleEvalSpec$1.add(SimpleEvalSpec.java:38)
> at org.apache.pig.impl.eval.EvalSpec.simpleEval(EvalSpec.java:223)
> at org.apache.pig.impl.eval.cond.CompCond.eval(CompCond.java:58)
> at org.apache.pig.impl.eval.FilterSpec$1.add(FilterSpec.java:60)
> at org.apache.pig.backend.hadoop.executionengine.mapreduceExec.PigMapReduce.run(PigMapReduce.java:117)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)
> Last 4KB
> attempt_200812161759_0045_m_000007_0 task_200812161759_0045_m_000007 tsdhb06.factset.com FAILED
> java.lang.IndexOutOfBoundsException: Requested index 11 from tuple (rec A, CSGN, VTX, VTX, 0, 20080303, 90919, 380, 1543, 206002)
> at org.apache.pig.data.Tuple.getField(Tuple.java:176)
> at org.apache.pig.impl.eval.ProjectSpec.eval(ProjectSpec.java:84)
> at org.apache.pig.impl.eval.SimpleEvalSpec$1.add(SimpleEvalSpec.java:38)
> at org.apache.pig.impl.eval.EvalSpec.simpleEval(EvalSpec.java:223)
> at org.apache.pig.impl.eval.cond.CompCond.eval(CompCond.java:58)
> at org.apache.pig.impl.eval.FilterSpec$1.add(FilterSpec.java:60)
> at org.apache.pig.backend.hadoop.executionengine.mapreduceExec.PigMapReduce.run(PigMapReduce.java:117)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)
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