Boot Warning

Setup, Configuration and Use Beginners
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1

Hello!
When loading OpenHAB 2.2.0 #978 in the openhab.log warning :

2017-07-04 10:49:50.820 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:49:50.896 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:49:55.824 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:00.860 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:06.046 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:12.002 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:21.185 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:26.237 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:31.240 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:36.242 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:41.341 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:46.410 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:51.412 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:50:56.412 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:01.414 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:06.856 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:11.862 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:16.903 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:22.160 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.
2017-07-04 10:51:27.241 [WARN ] [ore.internal.events.OSGiEventManager] - Dispatching event to subscriber 'org.eclipse.smarthome.core.thing.link.ThingLinkManager@7267fc65' takes more than 5000ms.

What are these warnings about and how to get rid of them? There are a lot of them.
Thanks!

2

I also get them (sometimes) at boot or when my system (a Synology system) is getting very busy.

As long as you don’t notice any disadvantages (OpenHAB being very slow), I think they are safe to ignore.