Re: Active-Active Clustering with Subversion

On Fri, May 7, 2010 at 8:08 PM, BD <ccice05_at_gmail.com> wrote:

>
> So the question remains, taking physical restraints out of the question, is
> there anyone out there who knows about managing the risks assocciated with
> having two or more apache/svn nodes accessing repos that are stored on a
> shared NFS storage system, with the SVN DBs using FSFS.

I can't comment on your specific situation, but Subversion repositories are
designed to be accessed by multiple concurrent processes, even if these
processes are located on separate hosts. When using a single instances
of Apache, for example, multiple requests can often spawn multiple processes
which all interact (correctly) with the Subversion repository. In addition,
the write-serialization window is relatively small, and writers do not block
readers, so even during long-running parallel commits, read operations will
still work as expected.

Throwing NFS in the mix here may complicate things a bit, but probably not
by much.

-Hyrum
Received on 2010-05-10 11:03:59 CEST