Concurrent calls problem

superfis Aug 22, 2006 4:51 AM

Hi,

I've got some webapp with <s:link .../> and <h:commandButton .../> tags. When I'm clicking very fast (twice or more) on either of them there are happening really weird things, appropriately for:
- s:link -

Caused by: javax.ejb.EJBException: Application Error: no concurrent calls on stateful beans

- h:commandButton - view site doesn't change (should be another one because it's wizard) but backbeans are performed and after every click the same site shows lightly different content. After fiew such an attempts there we have not so clear Exception result.

What's happening and how to avoid it?

Cheers,
Slawek

1. Re: Concurrent calls problem

wondermike Aug 22, 2006 8:56 AM (in response to superfis)

Hi, same happens to me in my app which is actually derived from the Step-by-Step Seam Getting Started Guide
Greetings - Michael
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2. Re: Concurrent calls problem

msteiner Aug 22, 2006 9:08 AM (in response to superfis)

Look at this http://jira.jboss.com/jira/browse/JBSEAM-183
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3. Re: Concurrent calls problem

robjellinghaus Aug 25, 2006 6:40 PM (in response to superfis)

I encourage people to vote for that issue. We are having troubles with this at work (not with a Seam app) and it'd be nice if Seam solved this in some foundational way.
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4. Re: Concurrent calls problem

gavin.king Aug 28, 2006 5:19 PM (in response to superfis)

Unfortunately, AFAICT, there is no real bulletproof solution that is cluster-safe...
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