Can you redeploy an application in EAP 6.1 without an outage

[nmachell]

Hi,

Is it possible in JBoss EAP 6.1 to redeploy an application into a domain without end users experiencing some form of outage?  I have experimented with having two server groups (2 servers in one, and one in the other), each with the same deployment and profile, and accessed through mod_cluster(which can see all three servers).  In all tests thus far, I have received some form of outage which implied to me that a redeployment occurs on both server groups in parallel.

Any advice much appreciated.

Kind Regards,

Neil

[wdfink]

If you add the application to both server groups the domain will redeploy it in parallel.

I suppose that you have to add the app with two different names and deploy one first.

But I think there will be a small gap as running requests might be interrupted during deploy or fail as the node where the request is routed from the apache in front might in the middle of re-deploy.

[nmachell]

thanks for your response

I thought the same actually and deployed two applications with different names (same web context root) to two server groups and this seems to work as the re-deploy is serial by manual process.  I would not personally use this in a production system as I feel it would cause confusion, if there is no better solution I would prefer to have two domains.

[wdfink]

I think that is a individual desicion I would prefer the single point of configuration but that are my two cents.

What I often saw is that such processes are scripted or there is a document which describe each single step and nobody think about it (as long as it works )