[Sugar-devel] Journal Backup/Restore UI

Bernie Innocenti bernie at codewiz.org
Thu Mar 25 21:17:54 EDT 2010

On Thu, 2010-03-25 at 18:54 -0400, Walter Bender wrote:
> All you'd need would be one 2-gig SD card per technician if you made
> the transaction run from external storage rather than the NAND.

Hmm, this would move the atomicity problem from one place (wifi net) to
another one (SD card). Granted, there's a big difference in reliability,
but it's still not fail-safe.

Thinking about it a little more, do we *really* need all-or-nothing
semantics on this? A user who is doing a restore obviously doesn't care
much about the *current* contents of their journal. If the restore fails
in the middle due to network problems, the procedure can simply be
retried as many times as needed, until it's complete. rsync is smart!

   // Bernie Innocenti - http://codewiz.org/
 \X/  Sugar Labs       - http://sugarlabs.org/

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