-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Mark,
On 5/19/17 3:26 PM, Mark Eggers wrote: > GB, > > On 5/19/2017 8:28 AM, gkk gb wrote: >> If my current Tomcat is installed in >> >> >> /home/tomcat/dir1/apache-tomcat-8.5.9 >> >> >> and then I install the latest Tomcat in >> >> >> /home/tomcat/dir1/apache-tomcat-8.5.15 >> >> >> how does Apache web server know to connect to the newer version >> of Tomcat? Is this established by the definition of CATALINA_HOME >> in .bash_profile? Or, some other way? >> > > The connection is done (normally) via a port. It's either AJP and > the AJP port configured in server.xml, or HTTP (could be HTTPS) and > the HTTP (or HTTPS) port configured in server.xml > > This depends on how your Apache HTTPD server is configured. > > If you use the same ports, then only one Apache Tomcat can be > running at a time (can't have two processes listen on the same port > - technically address / port combination). > >> >> Can I install both Tomcat versions side by side and switch >> between them to verify everything works fine with the newer >> Tomcat before deleting the older Tomcat? >> >> > > Yep. > > 1. Install newer Tomcat 2. Make sure server.xml is set the way you > need it to be 3. Copy web applications over to new Tomcat I would always recommend using separate CATALINA_HOME and CATALINA_BASE directories. You mention this below, but it's worth reinforcing the fact that upgrades become even easier once this split has been done. > 4. Shut down old Tomcat 5. Start up new Tomcat 6. Test > > Then make a decision. If the your applications have difficulties > with the new Tomcat, shut down the new Tomcat, start the old > Tomcat, and debug the issues on a development / test environment. > > I do something similar to upgrade Tomcats, albeit with an Ant > script, separate CATALINA_HOME / CATALINA_BASE, and an appBase > outside of CATALINA_BASE. > > This allows me to install new Tomcat versions without taking down > the old Tomcat. When it comes time to upgrade, I do the following: > > 1. Shut down the Tomcat service 2. Move two links to the new Tomcat > version (CATALINA_HOME / CATALINA_BASE) 3. Start up the Tomcat > service > > If there are issues, I can easily fall back to the old Tomcat > with: > > 1. Shut down the Tomcat service 2. Move two links to the old Tomcat > version 3. Start up the Tomcat service > > All of the server.xml modification information is kept in a set of > property files which are versioned. The Ant scripts use the > property files to configure Tomcat instances. This is roughly what we do as well: our ant-based build scripts build server.xml (and context.xml for that matter) from a set of properties that are specific to the application (and environment). And of course Tomcat is started/stopped with those same scripts :) Come to think of it... did I give you my Ant scripts ages ago? Or did you develop your own? I think I may have promised to publish them, but maybe never did. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlkg0yoACgkQHPApP6U8 pFhWgw/9HiS07rClspn20IoXUDtgpaf4yIiz//wlNyO1UBFSALFnsJGsX47S8FYO U370Lnq6calG9ufOIT/Jg6256O1YbGjJn62mFZmXJ5WeSIONxIOB/GBovVHa96+A lRv4Skp5Pr8AVpPuCq00ADken1kMIu/u8Baqr57TujaBjapq7fyDoxdFJ9/OSEuC jN4AGso6wrbr/je3EheOnBtIb2VDC0ruxHmqbLcWAYGMVroGmpGL1sMQoN1wV9xr DesVIfNlubT997HEYC+oVNccw21svRJFTLJ2FTrSD9RrJDGYM/biholfvI3OAQIO ApmrXD4jpqQvcTYhdVxEMspkN14e71lEnPzGfExxoZ906t5hb8kRoDnjOx/T3Rve 2bYrx/vlTWlv9LhZu0eLppG+X3xh+6ZHveIf2ekz+MWg36W5Sk6O8JLCoA5eoGV/ EotPgKEqM2Ldc+5T52bOf9wQPvd4MC1NNT25at+awBzIvjPoo1nBhITcGdQg1yNH +wlJHCOVJzWjACchXDpKxzLzRzadatFcRsiVsM6pCMIXd8Cj4LT5sqxejmpQHorW 7hvl3/ZCNjrmdWYcJMz4QFRahVyD4YX9ezEjMalZjYrGhEAOiiRxccyfdo/NZizG byEjQDJp0MIbfFVdWwqWRa7bN4Y8zCizhR2rYYVNJMi6FigCw7o= =TqXZ -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
