[Bug 12530] New: [REQ] Improve fuzzy using files being uploaded

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=12530

            Bug ID: 12530
           Summary: [REQ] Improve fuzzy using files being uploaded
           Product: rsync
           Version: 3.1.2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: core
          Assignee: wayned at samba.org
          Reporter: ben.rubson at gmail.com
        QA Contact: rsync-qa at samba.org

Hello,

Let's imagine the sender is uploading a bunch of files which are quite similar.
For example, the following dir :
/directory
|-backup1.iso
|-backup2.iso
|-backup3.iso
|-backup4.iso
|-backup5.iso

For the moment, if no remote fuzzy basis is found at the very beginning of the
transfer, every file will be fully uploaded.
Goal would then be to improve rsync so that once the first file has been
uploaded, fuzzy algorithm could look at this new file as a fuzzy basis file for
the other new files arriving. Same thing once the second file has been uploaded
etc...
Perhaps it could be done once for all at the very beginning of the transfer,
also taking the list of files which will be uploaded (sent by the sender), and
their properties, to feed the fuzzy algorithm.

This would speed-up transfer in a number of situations.

Thank you very much !

Ben

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