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1. Re: JBoss AS 5.1 Cluster Deploy Questions
rhusar Jan 12, 2012 4:35 AM (in response to welsh)1 of 1 people found this helpfulHey!
Actually, farm has not much to do with clustering, you could also farm a stateless non-clustered application, its just a method of deploying on all hosts.
With this method, is the Farm Deploy method sequentually or concurrently amonst all the nodes. Such that once one node is updated, does it update node 2, 3 and 4 at the same time or does it do node 2 and once thats done, do node 3, and once thats complete do node 4. If it is concurrently by default, is there a way to make it sequentually?
I am not sure here, IIRC there were some Farm deployment strategies, you could check that. But I think it will redeploy as soon as it gets the updated web app from the other server and just redeploy it. This might not be optimal if you dont want any outage.
When the sync is occuring amongst the nodes, does the application go offline during this process or does it only go offline once the sync has finished and the restart is necessary?
Its standard redeploy so it does go "offline".
Are these the only two methods of deploying to a clustered JBoss environment?
Well, I wouldnt recommend any of these options (unless you want HA-Singleton which is a different story). Just use standard deploy mechanisms (copy to server/all/deploy/) and make sure the application is <distributable/>.
If you are looking for upgrade without outage, you might wanna take a look at mod_cluster and session draining.
HTH,
Rado
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2. Re: JBoss AS 5.1 Cluster Deploy Questions
wdfink Jan 12, 2012 9:40 AM (in response to welsh)1 of 1 people found this helpfulIn addition to what Radoslav Husar said, if you want have such control of deployment management you might have a look at AS7.1 which provide a poweful domain management including CLI and batch scripts for this.For AS5 you might use JON (JBossON) for monitoring and management. -
3. Re: JBoss AS 5.1 Cluster Deploy Questions
welsh Jan 12, 2012 1:01 PM (in response to welsh)Hey,
Thanks to both of you for the responses which helped answer some questions but I have a quick follow up question.
Is there any reference material that you would recommend (Books, sites, articles, or etc.) for JBoss AS 5.1 (Unable to go to AS 7.1) in terms of tuning, setup and management?
Cheers,
Welsh
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4. Re: JBoss AS 5.1 Cluster Deploy Questions
rhusar Jan 12, 2012 1:37 PM (in response to welsh)Check the extensive product documentation here http://docs.redhat.com/docs/en-US/JBoss_Enterprise_Application_Platform/index.html however there might be certain differences with your community AS 5.1.
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5. Re: JBoss AS 5.1 Cluster Deploy Questions
wdfink Jan 12, 2012 3:31 PM (in response to welsh)JBoss in Action - Manning http://www.manning.com/jamae/
JBoss performance tuning http://www.amazon.com/JBoss-AS-5-Performance-Tuning/dp/184951402X
Also you will find a lot of wiki pages here in the community, don't stick on 5.1 because some 4.x articles might also be helpful
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6. Re: JBoss AS 5.1 Cluster Deploy Questions
welsh Jan 12, 2012 3:59 PM (in response to welsh)Hey,
Thanks for the links to the reference materials, looks like it will all provide a good amount of help to me.
Cheers
Welsh