In the start script for my application, the service is started with the following lines:
JVM_OPTS=$DEFAULT_JVM_OPTS" "$JAVA_OPTS" "$${optsEnvironmentVar}" -Dapp.pid=$$ -Dapp.home=$APP_HOME -Dbasedir=$APP_HOME"
exec nohup "$JAVACMD" -jar $JVM_OPTS <% if ( appNameSystemProperty ) { %>\"-D${appNameSystemProperty}=$APP_BASE_NAME\" <% } %> $CLASSPATH server /resources/config.yml > /home/testUser/stdout.out 2> /home/testUser/stderr.err &
The application starts up fine, but on code review, we noticed that the value of -Dapp.pid was incorrect, by checking it in ps -aux | grep appName, and comparing it to the PID of that command, along with the PID outputed by pgrep -f appName. I would like to know if there is any way to assign the correct PID to the parameter. So far, I've tried setting it to be:
-Dapp.pid=`preg -f appName`
But that simply ends up with -Dapp.pid being blank, which I assume is due to it calling that command before the exec is fully run. Has anyone else come across this before?