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https://issues.apache.org/jira/browse/PIG-2616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13238195#comment-13238195
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Daniel Dai commented on PIG-2616:
---------------------------------
The fix is fine. You can also drop UnsupportedOperationException in
InterStorage.
> JobControlCompiler.getInputSizeFromLoader must handle exceptions from
> LoadFunc.getStatistics.
> ---------------------------------------------------------------------------------------------
>
> Key: PIG-2616
> URL: https://issues.apache.org/jira/browse/PIG-2616
> Project: Pig
> Issue Type: Bug
> Reporter: Bill Graham
> Assignee: Bill Graham
> Attachments: pig-2616.1.patch
>
>
> PIG-2573 made it possible for {{JobControlCompiler}} to get input size from
> {{LoadFuncs}}, but in some cases (i.e. {{InterStorage}}), {{getStatistics}}
> throws an exception:
> {noformat}
> Caused by: java.lang.UnsupportedOperationException
> at
> org.apache.pig.impl.io.InterStorage.getStatistics(InterStorage.java:189)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.getInputSizeFromLoader(JobControlCompiler.java:839)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.getInputSize(JobControlCompiler.java:799)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.estimateNumberOfReducers(JobControlCompiler.java:777)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.JobControlCompiler.getJob(JobControlCompiler.java:599)
> {noformat}
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