Hi Justin, Since the daemon is a singleton.... i think... hitting the same URL twice shouldn't be a problem if mechanism to track the daemon state (running, notStarted ) is in place.
The problem as you said might be in the configuration. Cheers, Rahul ----- Original Message ----- From: "Justin Ruthenbeck" <[EMAIL PROTECTED]> To: "Tomcat Users List" <[EMAIL PROTECTED]> Sent: Tuesday, March 25, 2003 12:43 PM Subject: Re: Servlet init() versus doPost() Classloading??? > Hi Micael, > > Seems you're sidestepping the real problem by trying to initialize with a > doPost call ... the init() method is, afterall, meant for such > initialization. ;) Won't you have the same problem is you hit the URL > twice? > > If there are two copies of your deamon thread starting, then the problem is > in the code that starts them and can be changed to get the desired > behavior. Before going into thoughts on that, is there anything non-basic > about your setup that would complicate the problem (such as clustered > Tomcats, multiple JVMs, or other code that can start this daemon)? > > My apologies if you're absolutely sure you want to do this from a > doPost(). (?!) > > justin > > > At 04:29 PM 3/24/2003, you wrote: > >I am having a problem with a daemon I want to create at startup. I have a > >singleton daemon that I used to load on startup in the init(ServletConfig) > >method of a servlet. The problem is that this ends up creating two > >versions that then run concurrently and duplicate everything they each are > >doing. So, I had to quite doing that and instead kickstart the daemon by > >putting it in doPost(HttpServletRequest, HttpServletResponse) instead. I > >am really not quite sure what the classloader issues are here. > > > >I would like to kickstart the daemon on startup, because then I can avoid > >having to have clients get it going on their server with a call to > >http://localhost/kickstart where /kickstart is the mapping that calls the > >servlet with the daemon in doPost(HttpServletRequest, > >HttpServletResponse). Does someone have an idea. I am sure there are a > >lot of good ideas (there must be) but they are not coming to me > >immediately. I don't know that much about classloaders. I am not sure > >how the second version of the daemon is getting loaded, i.e. what other > >classloader is doing that. I know that each servlet has its own > >classloader. How that translates into the difference between init and > >doPost and the difference between startup of Tomcat and startup by call > >via doPost is dark to me. > > > >I would just go read more intensively on classloaders, if I could know > >that was the way to solve this dilemma of my own making. > > > >Thanks for any assistance on this. > > > >Micael > > > ____________________________________ > Justin Ruthenbeck > Software Engineer, NextEngine Inc. > justinr - AT - nextengine DOT com > Confidential > See http://www.nextengine.com/confidentiality.php > ____________________________________ > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
