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  1. Hadoop Map/Reduce
  2. MAPREDUCE-1510

RAID should regenerate parity files if they get deleted

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • None
    • contrib/raid
    • None
    • Reviewed

    Description

      Currently, if a source file has a replication factor lower or equal to that expected by RAID, the file is skipped and no parity file is generated. I don't think this is a good behavior since parity files can get wrongly deleted, leaving the source file with a low replication factor. In that case, raid should be able to recreate the parity file.

      Attachments

        1. MAPREDUCE-1510.patch
          2 kB
          Rodrigo Schmidt
        2. MAPREDUCE-1510.1.patch
          2 kB
          Rodrigo Schmidt
        3. MAPREDUCE-1510.2.patch
          8 kB
          Rodrigo Schmidt

        Issue Links

          depends upon

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-1519 RaidNode fails to create new parity file if an older version already exists

          • Major - Major loss of function.
          • Closed
          is depended upon by

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-1512 RAID could use HarFileSystem directly instead of FileSystem.get

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              rschmidt Rodrigo Schmidt
              rschmidt Rodrigo Schmidt
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              Dates

                Created:
                Updated:
                Resolved: