[jdf-dev] [jdf-users] Any JDF Updates equivalents to counter.war? wanted to use a Quickstart app to test cluster session failover

[Pete Muir]

On 12 Jul 2012, at 22:55, StevenBoscarine wrote:

> Hello Pete,
> Happy to take the lead and get this started.  Any idea for an initial name?  <artifactId>jboss-as-session-replication</artifactId>?

Sounds good.

> 
> I was thinking @Stateful because it requires @Clustered, right?  
> https://docs.jboss.org/author/display/AS71/Clustered+EJBs
> 
> @Stateless requires it as well, right?  
> http://docs.jboss.org/jbossclustering/cluster_guide/5.1/html/clustering-session.html
> 
> Are there any other Java EE features that need developer action to make them clustering/failover-ready?  Does CDI need anything for replicating conversation or session scoped beans in a cluster?

To get the CDI session scope clustered, just add <distributable /> to web.xml

> 
> Regarding JSF, I'm fine with whatever folks think.  JSF is good since everything they need is built into the container.  
> 
> However, my first thought is that the simpler we can make things, the better.  A lot of folks hate JSF.  I find pushing it at organizations an uphill battle.  When I say that acronym, a lot of folks still roll their eyes.  IMHO, the best solution for a quickstart is the one that does the job with the least number of moving parts.  

Ok. I was just worried it could be a lot of boilerplate in the Servlet.

Or we could do HTML5 + REST.

> 
> If there's 1 page and HTTP Basic Authentication, would we gain anything by having JSF?  Obviously am happy to accommodate what others want.

No, I'm just thinking that writing lots of HTML in servlets is pretty nasty.

> 
> I was thinking:
> 	• HTTP Basic Authentication
> 	• A servlet displaying a counter and the current login name.
> 	• @Stateful EJBs injected to maintain state.
> 	• @Stateless EJB injected just to show how.

Well, to me the priority is to show CDI session scope working in a cluster. I think more people will use this than EJBs.

We could do a second quickstart to show EJBs.

I'm not sure why we need to pull HTTP auth into it?

> WDYT?
> 
> Thanks,
> Steven
> 
> 
> On 7/12/2012 4:55 PM, Pete Muir wrote:
>> Hi Steven
>> 
>> Yes, we want a session replication quickstart :-)
>> 
>> We should, as you say, update it to use CDI (why an SLSB?) and Servlet 3. Possibly JSF?
>> 
>> Pete
>> 
>> On 12 Jul 2012, at 19:56, StevenBoscarine wrote:
>> 
>> 
>>> Hello All,
>>> I wanted to do an exercise to test failover on our new EAP6 cluster.  
>>> Any recommendations?
>>> 
>>> The one I'm familiar with is using 
>>> 
>>> https://community.jboss.org/wiki/ReplicatedCounter
>>>  and confirming the 
>>> counter doesn't go down when you kill a container.
>>> 
>>> If there isn't a great QS for session replication, does this dovetail 
>>> with any of the JDF Quickstarts?  If so, I'd love to see it use a 
>>> @Stateful session bean, Maven, and Servlet 3.0.  I could update this war 
>>> rather quickly if you saw value in having a QS specifically for testing 
>>> Session replication.
>>> 
>>> Thanks,
>>> Steven
>>> _______________________________________________
>>> jdf-users mailing list
>>> 
>>> jdf-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/jdf-users
> 
>