Uploaded image for project: 'Hadoop Map/Reduce'
  1. Hadoop Map/Reduce
  2. MAPREDUCE-644

distcp does not skip copying file if we are updating single file

VotersWatch issueWatchersCreate sub-taskLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • None
    • distcp
    • None

    Description

      distcp doesn't skip copying file when we do -update on single file if the destfile already exists.

      When we do

      hadoop distcp -update srcfilename destfilename

      it seems to be comparing checksums of srcfilename and destfilename/srcfilename and so skip is not done. It should compare checksums of srcfilename and destfilename.

      Attachments

        1. d_singlefile_update.patch
          3 kB
          Ravi Gummadi
        2. d_singlefile_update644.patch
          5 kB
          Ravi Gummadi

        Issue Links

        is blocked by

        Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-648 Two distcp bugs

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

        Activity
          This comment will be Viewable by All Users Viewable by All Users
          Cancel

          People

            ravidotg Ravi Gummadi
            ravidotg Ravi Gummadi
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Slack

                Issue deployment