Thierry Granger created MAPREDUCE-5061:
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Summary: MultipleInputs can not manage path with glob characters
like {a,b}
Key: MAPREDUCE-5061
URL: https://issues.apache.org/jira/browse/MAPREDUCE-5061
Project: Hadoop Map/Reduce
Issue Type: Bug
Reporter: Thierry Granger
Priority: Minor
Hello,
The org.apache.hadoop.mapreduce.lib.input.MultipleInputs expects a
configuration with :
* the parameter mapreduce.input.multipleinputs.dir.mappers in the format
<path 1>,<mapper class 1>;<path 2>,<mapper class 2>
* the parameter mapreduce.input.multipleinputs.dir.formats in the format
<path 1>,<input format class 1>;<path 2>,<input format class 2>
The usage of the comma as separator unable the use of the glob characters {a,b}
in the path (like : hdfs://localhost/user/foo/data201{2,3} ).
I suggest to change the separator to another non-problematic one (maybe =).
I patched the MultipleInputs code locally and found an other related issue :
when the path are created, the string representing the path is not unescape
(like it's done in the
org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getInputPaths method)
which makes an invalid path in case of glob characters {a\,b}
Thank you
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