Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-1501

FileInputFormat to support multi-level/recursive directory listing

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.21.1
    • Component/s: None
    • Labels:
    • Hadoop Flags:
      Reviewed

      Description

      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/%3Ce75c02ef0804011433x144813e6x2450da7883de3aca@mail.gmail.com%3E

      2/3/2009: http://mail-archives.apache.org/mod_mbox/hadoop-core-user/200902.mbox/%3C7F80089C-3E7F-4330-90BA-6F1C5B0B0F3F@nist.gov%3E

      6/2/2009: http://mail-archives.apache.org/mod_mbox/hadoop-common-user/200906.mbox/%3C4A258A16.8050300@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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            • Assignee:
              Zheng Shao
              Reporter:
              Zheng Shao
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              • Created:
                Updated:
                Resolved:

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