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
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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