On Tue, Mar 20, 2012 at 8:27 PM, Jeff Davis <pgsql@j-davis.com> wrote:
On Tue, 2012-03-20 at 22:21 +0100, Henk Bronk wrote: > actually rsync works fine on file level and is good for manual syncing. > it check really the files with the stat command, so a bit change will trigger the copy > in practice you need to keep an eye on compleetness of the rsync action.
Rsync still needs to examine the entire file. It has no information to know that the file is the same on master and slave.
We could try to give it the appropriate information on which it can make that assumption -- e.g. keep the timestamps the same so that rsync assumes the contents are the same. But that seems fragile and I don't see a good way of doing it, anyway.
We need a way to take a base backup of just the catalogs, essentially, and leave the user data intact. Probably quite a few details to sort out though.
Regards, Jeff Davis
rsync can take file that contains a list of files to sync. Is there a convenient way to generate such a control file?
