RE: Seamless transition between application updates

2007-05-11 Thread lightbulb432
You describe a good solution. Is there a way to have multiple versions of an application on one server, as opposed to having to divide up versions of the application per server? I ask because if your users tend to have long sessions, then in the Tomcat cluster you'd like to disable you could be w

RE: Seamless transition between application updates

2007-04-26 Thread Tim Lucia
> -Original Message- > From: Christopher Schultz [mailto:[EMAIL PROTECTED] > Sent: Thursday, April 26, 2007 8:54 AM > To: Tomcat Users List > Subject: Re: Seamless transition between application updates > > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > >

Re: Seamless transition between application updates

2007-04-26 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Lightbulb, lightbulb432 wrote: > What are the strategies you might use to update an application > running on multiple Tomcat instances (clustered with Apache mod_jk) > with a seamless transition for somebody who's using the application > at the time t

RE: Seamless transition between application updates

2007-04-26 Thread Tim Lucia
At my company, we have a weekly application update. Sometimes it is more frequent than that. We have Apache/httpd + mod_jk and three clustered Tomcats. Updating the Tomcats one at a time causes no loss of service as the other two pick up. Of course we do this during the periods of lowest usage,