On Fri, Sep 25, 2015 at 4:37 AM, Andreas Stieger <Andreas.Stieger_at_gmx.de> wrote:
> Hello,
>
> Nico Kadel-Garcia wrote:
>> On Thu, Sep 24, 2015 at 3:34 PM, Aaron Friesen <AFriesen_at_spirae.com> wrote:
>> > I have been tasked with setting up a mirror of several repositories with write-through back to the master.
>>
>> What is your engineering time worth? Wandisco publishes a very nice
>> multi-master setup that does precisely this, at
>
> Not "precisely", it's synchronous replication with a variant of Paxos.
It's a more complete multi-master solution. The result is even better:
full high availability access with multiple Subversion servers,
synchronized write access to the core repository, and you don't have
to write the potentially fragile and split-brain prone hooks yourself.
>> It can be a real
>> advantage to have a responsible commercial vendor to keep your tools
>> up-to-date for you, rather than to do so manually and be encouraged to
>> integrate local confusing tuning that is unsupportable in the long
>> term.
>
> I wouldn't be a thread on the topic without you chiming in for WD's services and products. I am not sure how this is relevant to Aaron's question, or if you just want to rationalize past purchase decisions. Using a paid vendor is a choice one can make, so is to the exchange for enterprise pricing.
I actually never bought their services. Their multi-master setup
wasn't available to me fiscally when I started supporting Subversion,
and I'm not currently running high availability Subversion
repositories. It just seems to solve a lot of the underlying issues
people try to address by doing master/slave Subversion setups, in a
more effective fashion.
>> Been there, done that, got paid a lot of consulting money for cleaning
>> up after it.
>
> A properly configured and monitored configuration would not need that, or not more or less than a commercial product. AFAIK my free setups run to this day.
We've only so many hours in our workday: making configurations from
scratch can be very interesting and exciting, and I'm glad yours works
out so well for you. But it can be fragile and risky and takes some
real thought. So that's why I ask "what is your time worth?"
> Andreas
Received on 2015-09-25 13:43:33 CEST