From: <glassfish_at_javadesktop.org>
Date: Sat, 26 May 2007 08:52:42 PDT

1)
w.r.t "hitting the max connection limit", you can enable connection leak tracing to see the caller that received the connection but did not return.
http://blogs.sun.com/kshitiz/entry/connection_leak_tracing

2)
w.r.t startup hang, could you try disabling Quick Startup, by adding the following jvm option. [Not sure whether this will help, but a trial]
<jvm-options>com.sun.enterprise.server.ss.ASQuickStartup=false</jvm-options>
[Message sent by forum member 'jr158900' (jr158900)]

http://forums.java.net/jive/thread.jspa?messageID=219075