SmallWorld Documentation for Future Developer
Written by Jennifer Young on April 23, 2019
Install and Set Up on TomCat
Step 1: Check the CentOS version and Java version
SmallWorld currently runs on n-9-22, which runs CentOS 6.10. You can check the version of CentOS with the following command:
cat /etc/centos-release
Check your current version of Java with the following command:
java -version
If you do not have the correct version, install it using yum. Follow the steps on this tutorial https://www.itzgeek.com/how-tos/linux/centos-how-tos/install-apache-tomcat-7-0-on-rhel-6-centos-6.html
Step 2: Create Tomcat Service Account
This must be done as a root user and has already been done for n-9-22.
groupadd tomcat mkdir /opt/tomcat useradd -g tomcat -d /opt/tomcat tomcat
Step 3: Create Initialization Script to Control Apache TomCat
Download the latest version of Apache TomCat from the website https://tomcat.apache.org/download-90.cgi
vi /etc/init.d/tomcat9
Copy the bash script from here https://www.itzgeek.com/how-tos/linux/centos-how-tos/install-apache-tomcat-7-0-on-rhel-6-centos-6.html
How to Restart the TomCat Server
service tomcat9 restart
Set Environment Variable for Anonymous Graphs for TomCat
The file to modify is
opt/tomcat/bin/catalina.sh
Add the following command to the top of the file (below the comments at the top_
export SWDIR=/srv/db4
Modifying the Amount of Memory Allocated to SmallWorld
The memory allocated to TomCat is found in
/opt/tomcat/bin/catalina.sh
Add the following commands to the top of the file (below the comments at the top)
export CATALINA_OPTS="$CATALINA_OPTS -Xms80g" export CATALINA_OPTS="$CATALINA_OPTS -Xmx80g" export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=70g"