Pid, Andre thanx. I will try both approaches. I will try the MX Bean first, this just seems to be more elegant ;)
thank you Leon On Wed, Nov 17, 2010 at 10:50 PM, André Warnier <a...@ice-sa.com> wrote: > I found the following trick somewhere, maybe it works for you : > > When starting your JVM, use a line like > > java -Dpid=$$ program.java > and in the java program using the statement System.getProperty("pid"); > > If it works, it's cute, and certainly a lot less overhead. > > Credits : http://www.jguru.com/faq/view.jsp?EID=416212 > (last one) > > Leon Rosenberg wrote: >> >> Hi, >> >> I have a ugly issue I'm sure many people on this list already solved. >> For multiple purposes I need pid's of processes, to stop/start them or >> ensure they are running. So far nothing spectacular. >> To obtain the pid I have following util: >> >> String[] cmd = { "/bin/bash", "-c", "echo $PPID" }; >> p = Runtime.getRuntime().exec(cmd); >> >> and afterwards read the ppid from the output stream of my process. So >> far - so good. >> >> The problem now occurs if a process has a lot of memory configured. >> Like 25Gb on a 32Gb machine. In such a configuration the above command >> fails with an OS'es out of memory, because fork >> fails to create another process with THAT amount of memory: >> >> 1598388 2010-11-17 02:54:47,061 ERROR net.anotheria.util.PidTools - >> Could not determine PID: java.io.IOException: Cannot run program >> "/bin/bash": java.io.IOException: error=12, Cannot allocate memory >> >> Is there another method to obtain the process id from within the process? >> >> regards >> Leon >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org