Glassfish3 and jruby

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Hello.
I’ve tried to use glassfish3 to run redmine on it, it’s a rails
application.
It actually sometimes works, the problem is that it deploys very long,
then the first page load takes even longer, and it sometimes causes
the whole glassfish to hang.
Does anyone know what it can be?
Oh, also it’s not possible for me to sequentially disable and then
enable the application, it usually loads even longer than for the
first time, if at all…
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