[Wrapper-user] Re: [Wrapper-cvs] Multiple java process on Linux

[Leif M. <le...@ta...>]

It is actually normal on Linux platforms for Java to be displayed as a 
series of
processes.   You will see the same thing if you run your application as 
a standalone
application without using the Wrapper.  If you look at the PPID (Parent 
PID) of
each process you can see how they are each spawned.

Try the following command.  It will make it clearer where each process comes
from.

ps -fax

Cheers,
Leif

bha...@us... wrote:

>When i use the wrapper 3.1 on Linux (Debian 2.2.20  and Redhat7.3) i can see 12 java processes :
>PID		PPID	Process 
>346		345       /usr/java/bin/java ...
>347		346       /usr/java/bin/java ...
>349		347       /usr/java/bin/java ...
>350		347       /usr/java/bin/java ...
>351		347       /usr/java/bin/java ...
>352		347       /usr/java/bin/java ...
>353		347       /usr/java/bin/java ...
>354		347       /usr/java/bin/java ...
>355		347       /usr/java/bin/java ...
>356		347       /usr/java/bin/java ...
>357		347       /usr/java/bin/java ...
>358		347       /usr/java/bin/java ...
>
>Is this normal ? If yes why ?
>
>public class app implements Runnable{
>boolean ok=true;
>	public app(String[] args) {
>	}
>	public void run(){
>		System.out.println("Newrun");
>		ok=true;
>		while (ok){
>			System.out.println("Alive");
>			try {
>				Thread.sleep(2000);
>			} catch (InterruptedException e) {
>				System.out.println("Interruption");
>			}
>		}
>	}
>
>	public void start() {
>
>	}
>	public void stop() {
>		ok=false;
>	}
>}
>
>
>import org.tanukisoftware.wrapper.WrapperManager;
>import org.tanukisoftware.wrapper.WrapperListener;
>                    
>public class serv
>	implements WrapperListener
>{
>	private app m_app;
>
>	/*---------------------------------------------------------------
>	 * Constructors
>	 *-------------------------------------------------------------*/
>	private serv()
>	{		System.out.println("new"); 	}
>
>	/*---------------------------------------------------------------
>	 * WrapperListener Methods
>	 *-------------------------------------------------------------*/
>	public Integer start( String[] args )
>	{
>		System.out.println("start");
>
>		Thread th;
>		m_app = new app( args );
>		th = new Thread(m_app);
>		th.start();
>
>		return null;
>	}
>
>	public int stop( int exitCode )
>	{
>		System.out.println("stop");
>
>		m_app.stop();
>        
>		return exitCode;
>	}
>    
>	public void controlEvent( int event )
>	{
>		System.out.println("control event "+event);
>		if (WrapperManager.isControlledByNativeWrapper()) {
>			// The Wrapper will take care of this event
>		} else {
>			if ((event == WrapperManager.WRAPPER_CTRL_C_EVENT) ||
>				(event == WrapperManager.WRAPPER_CTRL_CLOSE_EVENT) ||
>				(event == WrapperManager.WRAPPER_CTRL_SHUTDOWN_EVENT)){
>				WrapperManager.stop(0);
>			}
>		}
>	}
>    
>	/*---------------------------------------------------------------
>	 * Main Method
>	 *-------------------------------------------------------------*/
>	public static void main( String[] args )
>	{
>		System.out.println("main ");
>		WrapperManager.start( new serv(), args );
>	}
>}
>  
>