Hotspots are not being gathered using centralized monitoring

[GoogleCodeExporter]

What steps will reproduce the problem?
1.start application with configured javamelody monitoring
2.connect to it using centralized server

What is the expected output? What do you see instead?
Expected output - correctly shown hotspots
Empty table shown instead

Debugging shows that when monitoring server connects 
MOnitoringFilter.doMonitoring is called which executes this part:
if ("stop".equalsIgnoreCase(httpRequest.getParameter(COLLECTOR_PARAMETER))) {
            // on a été appelé par un serveur de collecte qui fera l'aggrégation dans le temps,
            // le stockage et les courbes, donc on arrête le timer s'il est démarré
            // et on vide les stats pour que le serveur de collecte ne récupère que les deltas
            for (final Counter counter : collector.getCounters()) {
                counter.clear();
            }

            if (!collector.isStopped()) {
                LOG.debug("Stopping the javamelody thread in this webapp, because a collector server from "
                        + httpRequest.getRemoteAddr() + " wants to collect the data itself");
                if (filterContext.getTimer() != null) {
                    filterContext.getTimer().cancel();
                }
                collector.stop();
            }
        }
So timer gets cancelled ant thread stack traces are not veing connected aymore.

Original issue reported on code.google.com by kaln...@gmail.com on 16 Oct 2013 at 5:17

[GoogleCodeExporter]

As you have seen, the timer thread is canceled when there is a centralized 
server, even when hotspots sampling is configured in the webapps.

It is fixed in trunk (revision 3561) and ready for the next release (1.48).

I have made a new build, to be included in the monitored webapps from the 
centralized collect server, and it is available at:
https://javamelody.googlecode.com/files/javamelody-20131110.jar

Original comment by evernat@free.fr on 10 Nov 2013 at 3:56

• Changed state: Fixed