provisiond hangs

Hi guys,

Provisiond tends to hang quite often here...

Last week a colleague of mine reported me that a new service wasn't discovered by OpenNMS. It quickly turned out that provisiond was hung. After an OpenNMS restart and an upgrade to 1.10.6-0.20120918.1 OpenNMS started to try discovering services again.

Yesterday, the same colleague called again; provisiond seems hung again.

I can't find any relevant message in provisiond.log, neither in output.log, misc.log or controller.log.

"service opennms status" doesn't report any problem:

support@opennms:~$ sudo service opennms status
OpenNMS.Eventd : running
OpenNMS.Trapd : running
OpenNMS.Queued : running
OpenNMS.Dhcpd : running
OpenNMS.Actiond : running
OpenNMS.Notifd : running
OpenNMS.Scriptd : running
OpenNMS.Rtcd : running
OpenNMS.Pollerd : running
OpenNMS.PollerBackEnd : running
OpenNMS.Collectd : running
OpenNMS.Threshd : running
OpenNMS.Vacuumd : running
OpenNMS.EventTranslator: running
OpenNMS.PassiveStatusd : running
OpenNMS.Statsd : running
OpenNMS.Provisiond : running
OpenNMS.Reportd : running
OpenNMS.Alarmd : running
OpenNMS.Ackd : running
OpenNMS.JettyServer : running
OpenNMS.Linkd : running
OpenNMS.Syslogd : running
opennms is running
support@opennms:~$

I've attached a screenshot of the node's page showing that I've tried 2 forced rescan yesterday with no result until now

Can you help me?

Cyrille