In rsync, incremental recursion, refers to memory saving technique where
it starts transferring files while only reading in a subset of the list
of files that will be transferred.
If you use --delete-before rsync will have to know the whole list of
files so it will know what to delete, so naturally incremental recursion
gets turned off because leaving it on conflicts with that you have asked
it to do.
Brian Cluff
On 09/24/2015 06:12 AM, Michael Havens wrote:
> Thanks for sharing with me about --delete-before. In my subsequent
> investigation into it's use I found the manpage says that using that
> option disables 'incremental recursion'. What is 'incremental
> recurssion'? I assume that I will still be able to backup lower level
> directories.
>
>
> Some options require rsync to know the full file list, so
> these
> options disable the incremental recursion mode. These
> include:
> --delete-before, --delete-after, --prune-empty-dirs,
> and
> --delay-updates. Because of this, the default delete
> mode when
> you specify --delete is now --delete-during when both
> ends of
> the connection are at least 3.0.0 (use --del or
> --delete-during
> to request this improved deletion mode explicitly).
> See also
> the --delete-delay option that is a better choice
> than using
> --delete-after.
>
>
> On Wed, Sep 23, 2015 at 10:11 PM, James Crawford <jrefl5@gmail.com
> <mailto:jrefl5@gmail.com>> wrote:
>
> Mike,
> you can have rsync do the deletes prior to copying files over
> --delete-before receiver deletes before xfer, not
> during
> You can also delete the excluded files if you use some form of
> the exclude command,
> --delete-excluded also delete excluded files from
> dest dirs
>
> James C.
>
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> --
> :-)~MIKE~(-:
>
>
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