The Java Process Command Line

This section provides a quick way for finding JVM options for application servers and ENOVIA Live Collaboration Servers running on Unix. It involves using the ps command to retrieve the Java process command line, as described in "Additional ENOVIA Live Collaboration Server Configuration Troubleshooting," Checking for Other Running Processes. For example, checking the JVM options for a particular server can be done simply by looking at the command line of the server's Java process.

Related Topics
Process Limitations
Other Java Settings
Key Live Collaboration Environment Variables

Application server startup scripts typically pass their home directory as a property on the command line to their Java processes. Java properties are prefixed with a -D and are a means of passing a parameter to any Java code running in the process, such as the application server's own code or the ENOVIA Live Collaboration Server running in RIP mode.

For example, if the Java command line contains:

-Dtomcat.home=${TOMCAT_HOME}

then the Java process is a Tomcat application server and its home directory can be found in the TOMCAT_HOME environment variable. This is the home directory for the application server and can be used to locate startup scripts and configuration files, as required in "Additional ENOVIA Live Collaboration Server Configuration Troubleshooting," Collecting Logs and Core Files.

The following table shows a list of properties that can be used to locate a Java process:

Process

Identifier

 
java.rmi.activation.port
 ENOVIA Live Collaboration Server 
catalina.home
 Tomcat version 4 Server 
weblogic.home
 WebLogic Server 
com.sun.aas.installRoot
 Sun ONE Server 
server.root
 WebSphere Server

The java.rmi.activation.port property is in the following format:

-Djava.rmi.activation.port=1099

It shows the ENOVIA Live Collaboration Server port, which is useful when using the RMI Gateway with multiple ENOVIA Live Collaboration Servers running on different ports. When running in RMI mode, a process called rmid is loaded and used to start ENOVIA Live Collaboration Servers on demand. Its command line includes the JVM options that will be passed to any ENOVIA Live Collaboration Server it creates and the port on which the ENOVIA Live Collaboration Server is listening.