RE: [rules-users] Failover setup with BRMS
You might consider using the Drools Execution Server. (M5) The way it is
set up right now it polls Guvnor for the current package. The potential
lag is bound to whatever poll settings you have in place.
Of course, at this point, the server code is pretty easy to modify if
you want to employ a different manner of pushing the package to the
cluster.
Robert Costello
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Michael Finger
Sent: Thursday, January 29, 2009 6:33 PM
To: rules-users(a)lists.jboss.org
Subject: Re: [rules-users] Failover setup with BRMS
Anyone got any insight? I'll put a sweet page in the wiki with the
info.....
Michael Finger wrote:
Hey everyone,
We're looking at putting the BRMS backed by an Oracle RBDMS into
production and the issue of failover has come up.
As things will move from QA into production using export/import,
clustering so someone's
work isn't lost if a server goes down isn't a big concern.
Ideally we would just like to put a load balancer in front of the BRMS
servers, point the rule agent
at the load balancer url, and be done with it. I've been trying to
find
some info on how this word.
In particular, what happens if I import a new package into BRMS server
1. When would server 2 see the new package and server them out? What
about existing packages that are updated? When would these changes
propagate?
Also, I noticed the following param in the rule agent config:
*
url
This is a space separated list of URLs to the BRMS which is
exposing the packages (see below for more details).
What is the expected behavior when you list multiple URLS?
Thanks,
Michael Finger
Overstock.com
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