Re: Using Cayenne Servlet Filter can bring the web application down

From: Borut Bolčina (borut.bolcin..mail.com)
Date: Mon Sep 14 2009 - 12:26:50 EDT

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    Yes, we successfully deployed a T5 application (openid server (70K users and
    rising) and much more) and yes it uses Cayenne 3M6. :-)

    I am again gaining momentum to continue writing.

    Cheers,
    Borut

    2009/9/14 Michael Gentry <mgentr..asslight.net>

    > Hi Borut,
    >
    > I'm just curious if you are still using Tapestry 5 (and if using
    > Cayenne with T5)? I also liked your blog where you were writing about
    > T5. I found that useful when I was just starting to read about T5 and
    > get started in it (I'm still learning, of course -- no expert here).
    >
    > mrg
    >
    >
    > On Mon, Sep 14, 2009 at 4:07 AM, Borut Bolčina <borut.bolcin..mail.com>
    > wrote:
    > > Hello,
    > >
    > > I think web developers should be given an advice at
    > > http://cayenne.apache.org/doc/web-applications.html that if using
    > Cayenne
    > > Servlet Filter the web application can be brought to a halt if a
    > malicious
    > > user sends lots of cookie-less requests (every request bounds data
    > context
    > > to a new session). We were testing our app with JMeter and found out we
    > can
    > > not afford to use filter approach.
    > >
    > > It would be of most value if some debates from the mailing list about how
    > to
    > > use DataContext based on different web application needs would be at the
    > > http://cayenne.apache.org/doc/obtaining-datacontext.html. What I have in
    > > mind is a tiny cookbook, just two or three recipes, on why it is good to
    > > gave one data context shared for all users, some data context created for
    > > each request, some saved in the session, when not to put dc in the
    > session
    > > etc.
    > >
    > > Should I open an issue in the JIRA?
    > >
    > > Cheers,
    > > Borut
    > >
    >



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