I've got a working tomcat application on an Amazon Linux EC2 and I've noticed some heap space issues recently. I wanted to try to modify the memory issues but I've discovered that this tomcat setup doesn't seem to have things where expected. I can't find catalina.sh, so I tried getting details using this:
ps aux | grep tomcat
and got the following:
tomcat 17305 1.0 15.3 3636764 618456 ? Sl 13:25 0:31 /usr/lib/jvm/jre/bin/java -classpath :/usr/share/tomcat7/bin/bootstrap.jar:/usr/share/tomcat7/bin/tomcat-juli.jar:/usr/share/java/commons-daemon.jar -Dcatalina.base=/usr/share/tomcat7 -Dcatalina.home=/usr/share/tomcat7 -Djava.endorsed.dirs= -Djava.io.tmpdir=/var/cache/tomcat7/temp -Djava.util.logging.config.file=/usr/share/tomcat7/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager org.apache.catalina.startup.Bootstrap start ec2-user 17566 0.0 0.0 110520 2152 pts/0 R+ 14:13 0:00 grep --color=auto tomcat
In the /usr/share/tomcat7/bin directory I only have bootstrap.jar, catalina-tasks-xml and tomcat-juli.jar
I've tried creating a setenv.sh with export CATALINA_OPTS="-Xms512M -Xmx1024" but I'm not sure this is being picked up and unsure how best to check without trying to hammer the app.
Would rally appreciate some help on A) where are all my normally expected tomcat files and B) how to set CATALINA_OPTS if this is a known setup.
You can update the JVM configurations in /etc/default/tomcat7 file
JAVA_OPTS="-Djava.awt.headless=true -Xmx1280m -XX:+UseConcMarkSweepGC"
After changing the configuration restart the tomcat and check the memory configuration by doing grep on java