2:03 a.m.
Hi Seema,
I am attaching the repository.xml we had used. Yes, it could be possible that JackRabbit
would need to be configured for clustering.(I guess we missed that one). (You will need
to change repository.xml in that case as specified).
The main reason we cannot use the BRMS for our current project is that our deadlines do
not allow us to wait till the GA of Release 5 (when we can get enterprise support for it)
and we cannot use 4.0.7 as it does not have some features important to us(like Security
etc).
Release 5 of the BRMS is really good and if you can use it, you should go for it.
Cheers,
Vikrant
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of Seema Manivannan
Sent: Saturday, November 15, 2008 7:36 AM
To: Rules Users List
Subject: Re: [rules-users] BRMS in a WAS cluster
Vikrant,
Thanks for the prompt reply. It would be surely helpful if you can post the samples which
worked for you. What are the license and support issues that made you decide against BRMS?
My understanding is that we need to enable JackRabbit clustering when we have JackRabbit
running in all nodes of the app server cluster. Oracle RAD would handle only clustering at
the DB level. Please correct me if I'm wrong.
Thanks,
Seema
On Thu, Nov 13, 2008 at 1:18 PM, Vikrant Yagnick
<VikrantY@mastek.com<mailto:VikrantY@mastek.com>> wrote:
Hi Seema,
We had initially tried using the BRMS for rules using WAS 6.1 and Oracle in clustered
modes.
While, we are not going for the BRMS right now due to license and support issues, from
that experience I can answer some of the questions, below.
From:
rules-users-bounces@lists.jboss.org<mailto:rules-users-bounces@lists.jboss.org>
[mailto:rules-users-bounces@lists.jboss.org<mailto:rules-users-bounces@lists.jboss.org>]
On Behalf Of Seema Manivannan
Sent: Thursday, November 13, 2008 6:15 AM
To: rules-users@lists.jboss.org<mailto:rules-users@lists.jboss.org>
Subject: Re: [rules-users] BRMS in a WAS cluster
hi,
I would appreciate any replies at least confirming that my approach below is right.
Thanks,
Seema
On Sun, Nov 9, 2008 at 11:16 PM, seemamani
<seemamani@gmail.com<mailto:seemamani@gmail.com>> wrote:
We use Drools 4.0.7 in our application which is deployed on a WAS 6.1 cluster
and it is working fine. Now we want to deploy the Drools BRMS also in the
WAS cluster. I went through the Drools and Jackrabbit mailing lists and
documentation. Please confirm if my understanding of how this can be
implemented is correct.
1. By default, JackRabbit uses Apache Derby in-memory database which does
not support clustering
That is correct
2. We need to configure a persistence manager in JackRabbit that stores data
in a RDBMS like Oracle
Yes. If you need a sample, I can send it to you. (Though, I am sure there is a lot of
material on this on the web).
3. I need to follow the instructions for JackRabbit clustering given here
http://wiki.apache.org/jackrabbit/Clustering
I am not sure, why you need Jack Rabbit clustering. If the tables are stored in the
database, then I am assuming RAC should handle clustering at the DB level. Though, do
correct me if I am wrong.
4. Also, the Drools documentation says that "The BRMS will create the
tables the first time it is started up if it is running against a fresh
(empty) RDBMS - so its important to note that the user credentials supplied
have permissions to create tables (at least initially, on first run, after
that they could be locked down)."
Is it not possible to create the Oracle tables before running the BRMS (we
have permission issues in creating the tables from the application)? I
assume that the DDL for creating the tables is available with the JackRabbit
distribution.
One Q&D way may be to just create the tables in a test database and then make the
schema into DDL scripts for use before installation.
5. Is there anything else I'm missing? Will BRMS work fine in the cluster
with the above setup?
My assumption is that the BRMS is just a web-app using the database as it's back-end
and hence do not know of any issues it could face.
Thanks,
Seema
--
View this message in context:
http://www.nabble.com/BRMS-in-a-WAS-cluster-tp20408825p20408825.html
Sent from the drools - user mailing list archive at Nabble.com.
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