I think you need to invest in Live Cycle Data Servies.
--- In flexcoders@yahoogroups.com, Aldo Bucchi <aldo.buc...@...> wrote:
>
> ( I copy this email from an internal communication I received )
>
> <quote>
>
> Hello,
>
> I've found a serious performance problem on an application written on
> Flex/AIR and using BlazeDS v3.0.0.544. By looking at the logs I can
> see that the server side method (invoked via RemoteObject on the
> client side) never executes in more than two threads at the same time.
> What I mean is that if I fire 5 simultaneous requests to the method
> using RemoteObject from the flex side, and log when the method is
> executed and when it returns, I get something like this:
>
> 12:00:00 Method Executed
> 12:00:00 Method Executed
> 12:00:01 Method Exiting
> 12:00:01 Method Executed
> 12:00:04 Method Exiting
> 12:00:04 Method Executed
> 12:00:10 Method Exiting
> 12:00:10 Method Executed
> 12:00:11 Method Exiting
> 12:00:13 Method Exiting
>
> While on the client side I see that all the 5 invocations were fired
> at 12:00:00.
>
> As you can see, the method tend to take a while to run. But the big
> problem is that the log suggest that some queuing is happening on the
> server side, allowing only a maximum of two threads to run in parallel
> at any given time.
>
> I thought it could be a problem with the thread pool of the servlet
> container, but my Tomcat has the following configuration:
>
> <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
> maxThreads="150" minSpareThreads="4"/>
>
> So I guessed that the limit could be imposed by BlazeDS itself. But
> haven't found anything on the documentation. Of course, I could be
> wrong and the problem may be something else.
>
> Any ideas?
>
> Thanks,
> Leo
>
> </quote>
>
> Note: The Remote Object destination has "application" scope, which
> means that there is only one instance of the Java object per
> application.
>
> Regards,
> A
>
> --
> Aldo Bucchi
> U N I V R Z
> Office: +56 2 795 4532
> Mobile:+56 9 7623 8653
> skype:aldo.bucchi
> http://www.univrz.com/
> http://aldobucchi.com/
>
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