This confirms something that I was thinking originally, which is that we have no good reason to have both in setenv.sh. I'm pretty sure that these were both mentioned in various pieces of documentation from the application vendor. Their documentation tends to be less than stellar. Combine bad documentation with app admins that are completely unfamiliar with tomcat... and you get messy setups. Unfortunately, there are more of them than me, so I have to have ALL of my facts straight before I go into battle.
Thanks for this additional information. It is much appreciated. On Wed, Jun 16, 2021 at 10:14 AM Christopher Schultz < ch...@christopherschultz.net> wrote: > Noelette, > > On 6/16/21 11:29, Noelette Stout wrote: > > Thanks! I was mostly trying to figure out if there was precedence or if > it > > was additive (i.e. 2GB to tomcat itself and another 2GB to the apps). > We're > > having some resource issues on one of our servers, so I wanted to make > sure > > I understood how the resources were being allocated. > > No additivity at all: the last one on the command-line wins. There is no > heap separation between Tomcat and the applications: it's one(ish) big, > happy heap. :) > > A note about CATALINA_OPTS versus JAVA_OPTS: when you use the various > scripts provided by Tomcat, CATALINA_OPTS is only used when launching a > Tomcat instance. JAVA_OPTS is used when launching *any* Java process. > There are many Java processes those scripts will launch that aren't > actually launching Tomcat. Examples include: > > 1. catalina.sh configtest > 2. catalina.sh stop (also shutdown.sh) > 3. catalina.sh version > 4. tool-wrapper.sh [anything] > > In all of those cases, JAVA_OPTS will be passed to the JVM. > > Do you really need a 2 gig heap to send a "shutdown" command to a > running server? Probably not. > > -chris > > > On Wed, Jun 16, 2021 at 9:17 AM Rob Sargent <rsarg...@xmission.com> > wrote: > > > >> > >> > >> On 6/16/21 9:06 AM, Noelette Stout wrote: > >>> openjdk version "1.8.0_292" > >>> > >>> > >>> On Wed, Jun 16, 2021 at 9:04 AM Rob Sargent <rsarg...@xmission.com> > >> wrote: > >>> > >>> > >> Both as for the same minimum so you should get 2G at start up. I'm not > >> sure which has precedency but I would be on java opt. I don't have a > >> catalina env, but you can see how CATALINA_OPTS is used in relationship > >> with JAVA_OPTS > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- Noelette Stout ITS Enterprise Applications - Application Administrator - Senior Business Administration Building, Rm 109L 921 South 8th Ave 8037 Idaho State University Pocatello ID 83209 E-mail: stounoel "at" isu "dot" edu Desk: 208-282-2554
