Manual Linux Tomcat InstallΒΆ

  1. Download a Tomcat 9 install package:

    $ sudo yum install wget
$ wget https://www-eu.apache.org/dist/tomcat/tomcat-9/v9.0.37/bin/apache-tomcat-9.0.37.tar.gz

  2. Uncompress the Tomcat 9 install package:

    $ sudo yum install tar
$ sudo mkdir /opt/tomcat
$ sudo tar -xf apache-tomcat-9.0.37.tar.gz -C /opt/tomcat
$ sudo ln -s /opt/tomcat/apache-tomcat-9.0.37 /opt/tomcat/latest

  3. Create a Tomcat user and set permissions:

    $ sudo useradd -m -U -d /opt/tomcat -s /bin/false tomcat
$ sudo chown -R tomcat:tomcat /opt/tomcat

  4. Create/Edit the Tomcat service file:

    $ sudo vi /etc/systemd/system/tomcat.service

    and add this:

    [Unit]
Description=Tomcat 9 servlet container
After=network.target

[Service]
Type=forking

User=tomcat
Group=tomcat

Environment="JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/jre"
Environment="JAVA_OPTS=-Djava.security.egd=file:///dev/urandom"

Environment="CATALINA_BASE=/opt/tomcat/latest"
Environment="CATALINA_HOME=/opt/tomcat/latest"
Environment="CATALINA_PID=/opt/tomcat/latest/temp/tomcat.pid"
Environment="CATALINA_OPTS=-Xms512M -Xmx10G -server -XX:SoftRefLRUPolicyMSPerMB=36000 -XX:-UsePerfData -Dorg.geotools.referencing.forceXY=true -Dorg.geotoools.render.lite.scale.unitCompensation=true"

ExecStart=/opt/tomcat/latest/bin/startup.sh
ExecStop=/opt/tomcat/latest/bin/shutdown.sh

[Install]
WantedBy=multi-user.target

  5. Define CATALINA_OPTS by creating /opt/tomcat/latest/bin/setenv.sh:

    #!/bin/sh

# Prepend JVM Options
CATALINA_OPTS="-XX:SoftRefLRUPolicyMSPerMB=36000 -XX:-UsePerfData ${CATALINA_OPTS}"

# Append system properties
CATALINA_OPTS="${CATALINA_OPTS} -Dorg.geotools.referencing.forceXY=true"

    Note

    -X java options must be listed before any -D system properties.

  6. Optional: By default Tomcat will use 1/4 of system memory, to set a lower limit adjust CATALINA_OPTS using setenv.sh.

    #!/bin/sh

# Prepend JVM Options
CATALINA_OPTS="-XX:SoftRefLRUPolicyMSPerMB=36000 -XX:-UsePerfData ${CATALINA_OPTS}"

# Append system properties
CATALINA_OPTS="${CATALINA_OPTS} -Dorg.geotools.referencing.forceXY=true"

# Prepend JVM Memory Options
CATALINA_OPTS="-Xms512M -Xmx4G ${CATALINA_OPTS}"

  7. Setup the Service

    $ systemctl daemon-reload
$ systemctl enable tomcat
$ systemctl start tomcat
$ systemctl status tomcat

  8. Test that Tomcat is running

    http://server_IP_address:8080