hello

i have one cluster with 2 machines and into machine one jboss as 7.2 instance

i have made one timer into EJB 3.1

i hace one problem.

whe it runs runs into the two instances.

how can i controle the execution, onli one?

if it runs, without control, into the two machines the processes are runs twice.

can you help me?

my code is:

import java.util.Date;

import javax.annotation.Resource;

import javax.ejb.Schedule;

import javax.ejb.Singleton;

import javax.ejb.Timeout;

import javax.ejb.Timer;

import javax.ejb.TimerService;

@Singleton

public class MyTimerBean  {

    @Resource

    TimerService timerService;

    private Date lastProgrammaticTimeout;

    private Date lastAutomaticTimeout;

    @Schedule(second="*/10", minute="*",hour="*", persistent=false)

    public void doWork(){

        System.out.println("timer:**runs each 10");

    }

    public void setTimer(long intervalDuration) {

        System.out.println("Setting a programmatic timeout for  intervalDuration  milliseconds from now.");

        Timer timer = timerService.createTimer(intervalDuration, "Created new programmatic timer");

    }

        //cada 20 segundos

    @Schedule(second="*/20", minute="*",hour="*", persistent=false)

    public void miLanzamiento(){

    System.out.println("====runs each 20");

    }

    @Timeout

    public void programmaticTimeout(Timer timer) {

        this.setLastProgrammaticTimeout(new Date());

        System.out.println("timeout..");

    }

    @Schedule(minute="*/3", hour="*")

    public void automaticTimeout() {

        this.setLastAutomaticTimeout(new Date());

        System.out.println("Timeout.........");

    }

    public String getLastProgrammaticTimeout() {

        if (lastProgrammaticTimeout != null) {

            return lastProgrammaticTimeout.toString();

        } else {

            return "never";

        }

    }

    public void setLastProgrammaticTimeout(Date lastTimeout) {

        this.lastProgrammaticTimeout = lastTimeout;

    }

    public String getLastAutomaticTimeout() {

        if (lastAutomaticTimeout != null) {

            return lastAutomaticTimeout.toString();

        } else {

            return "never";

        }

    }

    public void setLastAutomaticTimeout(Date lastAutomaticTimeout) {

        this.lastAutomaticTimeout = lastAutomaticTimeout;

    }

}