[EMAIL PROTECTED] wrote:
Dear List,
We have a CHS (Cocoon-Hibernate-Spring) application that uses a binary tree
implemented as an AJAX component. Since porting this app to Cocoon (it was
previously implemented using Spring MVC), we have been experiencing
difficulties with the tree. Specifically, the app doesn't respond to user
interaction with the tree until Cocoon has completed processing the current
request.
What do you mean by "current request"? Do you mean the user clicks on
the tree before the current page is fully loaded?
In researching this issue, I ran across the following from Sylvain Wallez
in the Cocoon-Users archive:
Execution of a flowscript is synchronized on the global variable scope,
which is bound to the session. Although this shouldn't be a problem in
real world as a single user is not very likely to send parallel
requests, you should verify that your load testing engine uses different
sessions (or no session at all) for the simulated concurrent users. That
may explain these numbers.
At this point, I'm trying to evaluate my options, which as I see it are:
1) Refactor flow control to use JavaFlow instead of flowscript (this is
assuming that JavaFlow isn't subject to the same synchronization as
flowscript)
2) Refactor the app to minimize the use of flow control
3) Host the AJAX component under a seperate servlet
Can someone tell me if JavaFlow suffers from the same synchronization
issues as flowscript? Also any recommendations for alternate approaches
would be welcome.
Would it be possible to have the tree data be stored in a session
attribute so that accessing it doesn't go through synchronization?
Sylvain
--
Sylvain Wallez Anyware Technologies
http://bluxte.net http://www.anyware-tech.com
Apache Software Foundation Member Research & Technology Director
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