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From "Cox, Charlie" <c...@cincom.com>
Subject RE: What does manager do anyway?
Date Tue, 26 Feb 2002 13:25:44 GMT


> -----Original Message-----
> From: August Detlefsen [mailto:augustd123@yahoo.com]
> Sent: Monday, February 25, 2002 7:24 PM
> To: Tomcat Users List
> Subject: Re: What does manager do anyway? 
> 
> 
> Thanks Craig, Glad to know I can add a servlet without having to
> restart the entire server! I'll try a redeploy for the next servlet I
> add. 
> 
> As for the sessions, prior to installing this servlet, they were in
> fact getting dropped each time I reloaded with the manager. I was
> forced to login again with every start-stop. Could this be because the
> webapp was strictly JSP, with no servlet component? 
> 

that's odd because I don't have this problem. I put a String into the
session during login and it stays after stop/start provided that my session
didn't timeout. I use servlets, but it shouldn't matter because jsp's are
also servlets.

are your objects Serializable as Craig mentioned?

Charlie

> 
> 
> 
> --- "Craig R. McClanahan" <craigmcc@apache.org> wrote:
> > 
> > 
> > On Mon, 25 Feb 2002, August Detlefsen wrote:
> > 
> > > Date: Mon, 25 Feb 2002 15:24:31 -0800 (PST)
> > > From: August Detlefsen <augustd123@yahoo.com>
> > > Reply-To: Tomcat Users List <tomcat-user@jakarta.apache.org>,
> > >      augustd@codemagi.com
> > > To: Tomcat Users List <tomcat-user@jakarta.apache.org>
> > > Subject: What does manager do anyway?
> > >
> > > Can I use manager to pick up changes in my webapp's web.xml?
> > >
> > > I added a new servlet and tried stop-start via the manager and it
> > was
> > > not picked up. Likewise with manager/reload.
> > >
> > > Do I have to do a full remove-install for it to pick up the
> > changes?
> > >
> > 
> > Yes.  That's a current restriction of the way that an application
> > reload
> > is implemented (in org.apache.catalina.core.StandardContext), not of
> > the
> > manager webapp servlet itself.
> > 
> > > Also, isn't stopping and starting a context supposed to remove any
> > > active sessions in the context?
> > >
> > 
> > No (and this works across shutting down and restarting Tomcat as
> > well).
> > As a matter of fact, if your session attributes are Serializable,
> > they will get saved and restored as well.  This is a tremendously
> > helpful
> > feature when you're debugging a webapp that takes multiple
> > interactions to
> > get to the page you're testing, you make a change, and don't want to
> > take
> > the time to navigate from the top of your application's tree again.
> > 
> > Note, however, that this is a *Tomcat* feature, not 
> anything required
> > by
> > the specs, so you cannot count on it on any other server.
> > 
> > > -August
> > 
> > Craig

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