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Re: Questions about a script for regular backups

From: Mark Phippard <markphip_at_gmail.com>
Date: Tue, 27 Aug 2019 09:29:22 -0400

On Tue, Aug 27, 2019 at 5:06 AM Johan Corveleyn <jcorvel_at_gmail.com> wrote:

> On Mon, Aug 26, 2019 at 9:01 PM Mark Phippard <markphip_at_gmail.com> wrote:
> >
> > On Mon, Aug 26, 2019 at 1:29 PM Anton Shepelev <anton.txt_at_gmail.com>
> wrote:
> >>
> >> I have now set up a post-commit hook that makes an
> >> --incremental hotcopy. With the destination on the same
> >> machine's HDD, it takes about two seconds, but with a
> >> network share it lasts 30 seconds. Is it expected behavior
> >> for committing a tiny change in a text file? If not, then
> >> where shall I look for the possible performance problems? I
> >> have svn 1.8.16.
> >
> >
> > It is probably due to slowness of the IO across network to read what is
> in the target repository and then copy over the files. Other than tuning
> NFS or whatever you are using there is not much you can do. This is why my
> first recommendation was to use svnsync. You could have a second backup
> server running and then use svnsync via https or svn protocol to that
> server. This basically replays the commit transaction so performs
> comparably to the original commit. It also makes it a lot easier to send
> the backup around the world or to another data center since it is using a
> protocol that is meant for that sort of latency.
> >
> Does svnsync also copy locks and hook scripts?

No, neither of those are synced. You would not want the hooks to sync
since you need to run different hooks on the backup server but locks are a
problem for people using that feature.

Mark Phippard
Received on 2019-08-27 15:29:42 CEST

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