tomcat Using CATALINA_OPTS

To configure Tomcat using CATALINA_OPTS, you can follow these steps:

1. Locate the `catalina.sh` or `catalina.bat` file in your Tomcat installation directory.
2. Open the file in a text editor.
3. Look for the section that sets the default options (`JAVA_OPTS`).
4. Below the `JAVA_OPTS` section, add a new line to set the `CATALINA_OPTS` variable. For example:

   CATALINA_OPTS="-Xms512m -Xmx1024m"

Here, I've set the minimum heap size (`-Xms`) to 512MB and the maximum heap size (`-Xmx`) to 1024MB. You can adjust these values according to your requirements.
5. Save the file.

Now, when you start Tomcat using the startup script (`catalina.sh` or `catalina.bat`), it will use the options specified in `CATALINA_OPTS`.

Note that `CATALINA_OPTS` is used specifically for Tomcat-related configuration, while `JAVA_OPTS` is used for general Java options.