[Bucardo-general] Simple question regarding master-master

Athanasios Kostopoulos athanasios.kostopoulos at classmarkets.com
Fri Jun 14 13:12:22 UTC 2013


Thanks for the reply Mitchell. So you do something along the lines of:
in master1:
bucardo add dbgroup master1:source master2:target
and fire off the relative sync
and on master2:
bucardo add dbgroup master2:source master1:target
and fire off the relative sync?


On Fri, Jun 14, 2013 at 3:02 PM, Mitchell Perilstein <
Mitchell.Perilstein at trueposition.com> wrote:

>  We're running differently from Rosser's one-bucardo suggestion--which
> does make sense.  We're dual master but we need both boxes to be as
> identical as possible partly because the process has to be repeatable on
> many pairs and also because we bounce our apps on occasion but want the DBs
> to stay in sync.  So we have bucardo on each box, with each local bucardo
> writing to its remote peer.  So it's a criss-cross arrangement.
>
> For our purpose, at least, this also gets us a little bit of HA: even if
> our application layer and bucardo are down on one box, as long as its
> database is running, the fully-up peer box will continue writing its
> changes to the partly down box.
>
> I'm not saying our approach is correct, but it's working for us.
>
>
>
> On 06/14/2013 07:17 AM, Rosser Schwarz wrote:
>
> Bucardo only needs to be installed on one host, although obviously, that
> won't provide HA capability. Typically, in a master-master scenario, it's
> installed on one of the masters. In the event either of the masters then
> goes down, the Bucardo daemon wouldn't have anything to do anyway, so HA
> for it is pretty moot.
>
>
> On Fri, Jun 14, 2013 at 3:44 AM, Athanasios Kostopoulos <athanasios.kostopoulos at classmarkets.com> wrote:
>
>
>  In continuation to my previous email?
> For example the following approach might be effective:
> - install bucardo on master1
> - setup replication as follows: master1: master - master2: slave
> - verify that replication works
> If the above are correct then:
> - install bucardo on master2
> - setup replication as follows: master2: master - master1: slave
> - verify replication works
> Will the previous be enough or I am missing a fundamental piece here
> (perhaps not needing to run bucardo on two different hosts and use one
> setup (say on master one) and two replication streams. How will this handle
> failover?
>
>
> On Thu, Jun 13, 2013 at 5:43 PM, Athanasios Kostopoulos <athanasios.kostopoulos at classmarkets.com> wrote:
>
>
>  Dear all,
> first of all, thanks for the hard work that has been put into bucardo. I
> am a novice and I have the following perhaps trivial question:
> when wanting to create a master-master setup, do I need to install
> bucardo (e.g. bucardo install) on both of the masters? I am on Debian 7
> wheezy with bucardo 4.99.7, installed from the Debian repositories. Thanks
> in advance for any answers to my perhaps trivial question.
>
>
>
> _______________________________________________
> Bucardo-general mailing listBucardo-general at bucardo.orghttps://mail.endcrypt.com/mailman/listinfo/bucardo-general
>
>
>
> _______________________________________________
> Bucardo-general mailing listBucardo-general at bucardo.orghttps://mail.endcrypt.com/mailman/listinfo/bucardo-general
>
>
>
> Confidentiality Notice: This e-mail (including any attachments) is
> intended only for the recipients named above. It may contain confidential
> or privileged information and should not be read, copied or otherwise used
> by any other person. If you are not a named recipient, please notify the
> sender of that fact and delete the e-mail from your system.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.endcrypt.com/pipermail/bucardo-general/attachments/20130614/0ffb303a/attachment-0001.html>


More information about the Bucardo-general mailing list