Thanks for the infos. I was thinking the same thing you were thinking, that it might be 32-bit JVM, but when I run "java -version" I am getting:
java -version java version "1.8.0_221" Java(TM) SE Runtime Environment (build 1.8.0_221-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.221-b11, mixed mode) Isn't that confirming that this is a 64-bit JVM? ALSO FYI, I did test where I also added "-d64" parameter to the CATALINA_OPTS, and same thing happened. Jim On Tue, Mar 31, 2020 at 11:10 AM Olaf Kock <tom...@olafkock.de> wrote: > > On 31.03.20 17:02, o haya wrote: > > Hi, > > > > I am running Tomcat 9.02 under RHEL 7 (under Oracle JDK 1.8), and I would > > like to increase the memory that is available to Tomcat when it is > running. > > > > I have tried sourcing the following: > > > > JAVA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 -server \ > > -Xms4096m -Xmx4096m -XX:NewSize=256m -XX:MaxNewSize=256m > > -XX:+DisableExplicitGC \ > > -Djava.security.egd=file:/dev/./urandom -d64" > > You want to use CATALINA_OPTS for memory settings, not JAVA_OPTS. > > JAVA_OPTS are used for every JVM start, including when you run > shutdown.sh - that one needs only a minimal amount of memory for short > time. > > > and also: > > > > CATALINA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 -server \ > > -Xms4096m -Xmx4096m -XX:NewSize=256m -XX:MaxNewSize=256m > > -XX:+DisableExplicitGC \ > > -Djava.security.egd=file:/dev/./urandom" > > your CATALINA_OPTS will be combined with the JAVA_OPTS, so that you > configure the memory twice. > > But -Xms and -Xmx are the way to configure the memory. > > > but even with those, when I check memory using "free", it is only using > > about 1.5GB. > > > > Can someone tell me how I can accomplish this? > > Sounds suspiciously like you're running on 32bit, either the OS or JVM. > Upgrade to 64bit to have access to more memory. > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
