Oleksandr Alesinskyy created MAPREDUCE-5859:
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Summary:
org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus should not
throw an exception if at least one of input path is not empty
Key: MAPREDUCE-5859
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5859
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: client
Affects Versions: 2.2.0
Reporter: Oleksandr Alesinskyy
At the time being
org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus throws an
exception if at least one of input path is empty. This is pretty inconvenient,
especially, it there are additional path filters that may exclude some files on
the path.
It would be nice if an exception will be thrown if and only if there is no one
file to process at all (on all input paths combined).
If backward compatibility is a priority, a configuration setting may be added
(with the default value to retain existing behavior).
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