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[Bug 188] New: xfsdump dumps unnecessary files/inodes when doing increme

To: xfs-master@xxxxxxxxxxx
Subject: [Bug 188] New: xfsdump dumps unnecessary files/inodes when doing incremental dumps
From: bugzilla-daemon@xxxxxxxxxxx
Date: Sat, 26 Oct 2002 17:01:52 -0700
Sender: linux-xfs-bounce@xxxxxxxxxxx
http://oss.sgi.com/bugzilla/show_bug.cgi?id=188

           Summary: xfsdump dumps unnecessary files/inodes when doing
                    incremental dumps
           Product: Linux XFS
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: xfsdump
        AssignedTo: xfs-master@xxxxxxxxxxx
        ReportedBy: cw@xxxxxxxx


xfsprogs (all versions from when Noah was a boy to present) dump
unnecessary files/inodes when doing incremental dumps.

When files are moved/renamed (causing a directory to be changed), all
files in the directory (or directories in the example below) are
dumped again --- even when they are older than the dump's time stamp.

For example, if you were to dump (level 0) the following:

dir1/file1
dir1/file2
dir1/file3

and then after the level 0 dump do:

mkdir dir2
mv dir1/file2 dir1/file1

or whatever... xfsdump will dump not only dir1 and dir2, but also all
the files contained within (ie. dir1/file1, dir2/file2, dir1/file3).

This is unnecessary as the file contents and inodes have not changed,
and extremely annoying when a file in (say) /usr/bin gets renamed or
whatever as the entire directory gets dumped.

Obviously, renames of multiGB files really hurt.



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