FileInputFormat to support multi-level/recursive directory listing
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Key: MAPREDUCE-1501
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1501
Project: Hadoop Map/Reduce
Issue Type: Improvement
Reporter: Zheng Shao
As we have seen multiple times in the mailing list, users want to have the
capability of getting all files out of a multi-level directory structure.
4/1/2008:
http://mail-archives.apache.org/mod_mbox/hadoop-core-user/200804.mbox/%3ce75c02ef0804011433x144813e6x2450da7883de3...@mail.gmail.com%3e
2/3/2009:
http://mail-archives.apache.org/mod_mbox/hadoop-core-user/200902.mbox/%3c7f80089c-3e7f-4330-90ba-6f1c5b0b0...@nist.gov%3e
6/2/2009:
http://mail-archives.apache.org/mod_mbox/hadoop-common-user/200906.mbox/%3c4a258a16.8050...@darose.net%3e
One solution that our users had is to write a new FileInputFormat, but that
means all existing FileInputFormat subclasses need to be changed in order to
support this feature.
We can easily provide a JobConf option (which defaults to false) to
{{FileInputFormat.listStatus(...)}} to recursively go into directory structure.
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