How to identify process that's using up all disk space?

  • Platform information: Raspberry Pi 4
    • Hardware: 4GB RAM, 32GB SD card.
    • OS: Openhabian 2.5

As of 00:40 last night a process started eating up disk space and now I am in a state of “crash” since all disk space on dev/root is used up.
I haven’t made any changes to my setup for months and it has been running totally stable a very very long time. Meaning I have no clue where to start…:slight_smile:

Below you see the logs with the storage ticking down.
One line seems to be recurring throughout the log. At 03:00 the logs stopped as the SD card was full.
I am lost as to where to start - does anyone have idea as to where/how I can start looking for the process eating up my system? Thank you so much.

Cheers,
Peter.

[me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.090 [WARN ] [me.core.internal.events.EventHandler] -

Events.log

2020-04-26 00:38:03.236 [vent.ItemStateChangedEvent] - Network_DataRecevied changed from 3144 to 3145
2020-04-26 00:39:03.094 [vent.ItemStateChangedEvent] - Moonage changed from 9.577604964888025 to 9.589320608659651
2020-04-26 00:39:03.245 [vent.ItemStateChangedEvent] - CPU_Load5 changed from 0.4 to 0.5
2020-04-26 00:39:04.614 [vent.ItemStateChangedEvent] - Azimuth changed from 348.7282345785193 to 350.0139646275037
2020-04-26 00:39:04.620 [vent.ItemStateChangedEvent] - Elevation changed from -19.83607366291882 to -19.963567209937622
2020-04-26 00:39:28.567 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23343 to 23334
2020-04-26 00:39:28.568 [vent.ItemStateChangedEvent] - Storage_Available changed from 23343 to 23334
2020-04-26 00:39:29.631 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23334 to 23325
2020-04-26 00:39:29.632 [vent.ItemStateChangedEvent] - Storage_Available changed from 23334 to 23325
2020-04-26 00:39:30.756 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23325 to 23323
2020-04-26 00:39:30.761 [vent.ItemStateChangedEvent] - Storage_Available changed from 23325 to 23323
2020-04-26 00:39:31.860 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23323 to 23322
2020-04-26 00:39:31.861 [vent.ItemStateChangedEvent] - Storage_Available changed from 23323 to 23322
2020-04-26 00:39:32.914 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23322 to 23312
2020-04-26 00:39:32.916 [vent.ItemStateChangedEvent] - Storage_Available changed from 23322 to 23312
2020-04-26 00:39:34.118 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23312 to 23311
2020-04-26 00:39:34.121 [vent.ItemStateChangedEvent] - Storage_Available changed from 23312 to 23311
2020-04-26 00:39:35.755 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23311 to 23299
2020-04-26 00:39:35.757 [vent.ItemStateChangedEvent] - Storage_Available changed from 23311 to 23299
2020-04-26 00:39:36.784 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23299 to 23297
2020-04-26 00:39:36.786 [vent.ItemStateChangedEvent] - Storage_Available changed from 23299 to 23297
2020-04-26 00:39:37.842 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23297 to 23294
2020-04-26 00:39:37.844 [vent.ItemStateChangedEvent] - Storage_Available changed from 23297 to 23294
2020-04-26 00:39:38.880 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23294 to 23292
2020-04-26 00:39:38.887 [vent.ItemStateChangedEvent] - Storage_Available changed from 23294 to 23292
2020-04-26 00:39:39.952 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23292 to 23289
2020-04-26 00:39:39.953 [vent.ItemStateChangedEvent] - Storage_Available changed from 23292 to 23289
2020-04-26 00:39:40.999 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23289 to 23286
2020-04-26 00:39:41.002 [vent.ItemStateChangedEvent] - Storage_Available changed from 23289 to 23286
2020-04-26 00:39:42.046 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23286 to 23283
2020-04-26 00:39:42.048 [vent.ItemStateChangedEvent] - Storage_Available changed from 23286 to 23283
2020-04-26 00:39:43.089 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23283 to 23280
2020-04-26 00:39:43.091 [vent.ItemStateChangedEvent] - Storage_Available changed from 23283 to 23280
2020-04-26 00:39:44.138 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23280 to 23278
2020-04-26 00:39:44.140 [vent.ItemStateChangedEvent] - Storage_Available changed from 23280 to 23278
2020-04-26 00:39:45.177 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23278 to 23275
2020-04-26 00:39:45.178 [vent.ItemStateChangedEvent] - Storage_Available changed from 23278 to 23275
2020-04-26 00:39:46.215 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23275 to 23272
2020-04-26 00:39:46.216 [vent.ItemStateChangedEvent] - Storage_Available changed from 23275 to 23272
2020-04-26 00:39:47.256 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23272 to 23269
2020-04-26 00:39:47.257 [vent.ItemStateChangedEvent] - Storage_Available changed from 23272 to 23269
2020-04-26 00:39:48.297 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23269 to 23267
2020-04-26 00:39:48.298 [vent.ItemStateChangedEvent] - Storage_Available changed from 23269 to 23267
2020-04-26 00:39:49.334 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23267 to 23264
2020-04-26 00:39:49.335 [vent.ItemStateChangedEvent] - Storage_Available changed from 23267 to 23264
2020-04-26 00:39:50.373 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23264 to 23261
2020-04-26 00:39:50.374 [vent.ItemStateChangedEvent] - Storage_Available changed from 23264 to 23261
2020-04-26 00:39:51.415 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23261 to 23259
2020-04-26 00:39:51.417 [vent.ItemStateChangedEvent] - Storage_Available changed from 23261 to 23259
2020-04-26 00:39:52.454 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23259 to 23256
2020-04-26 00:39:52.455 [vent.ItemStateChangedEvent] - Storage_Available changed from 23259 to 23256
2020-04-26 00:39:53.493 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23256 to 23253
2020-04-26 00:39:53.496 [vent.ItemStateChangedEvent] - Storage_Available changed from 23256 to 23253
2020-04-26 00:39:54.530 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23253 to 23251
2020-04-26 00:39:54.532 [vent.ItemStateChangedEvent] - Storage_Available changed from 23253 to 23251
2020-04-26 00:39:55.570 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23251 to 23248
2020-04-26 00:39:55.572 [vent.ItemStateChangedEvent] - Storage_Available changed from 23251 to 23248
2020-04-26 00:39:56.622 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23248 to 23245
2020-04-26 00:39:56.626 [vent.ItemStateChangedEvent] - Storage_Available changed from 23248 to 23245
2020-04-26 00:39:57.687 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23245 to 23243
2020-04-26 00:39:57.688 [vent.ItemStateChangedEvent] - Storage_Available changed from 23245 to 23243
2020-04-26 00:39:58.741 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23243 to 23241
2020-04-26 00:39:58.743 [vent.ItemStateChangedEvent] - Storage_Available changed from 23243 to 23241
2020-04-26 00:39:59.826 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23241 to 23240
2020-04-26 00:39:59.828 [vent.ItemStateChangedEvent] - Storage_Available changed from 23241 to 23240
2020-04-26 00:40:00.862 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23240 to 23239
2020-04-26 00:40:00.863 [vent.ItemStateChangedEvent] - Storage_Available changed from 23240 to 23239
2020-04-26 00:40:01.915 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23239 to 23230
2020-04-26 00:40:01.916 [vent.ItemStateChangedEvent] - Storage_Available changed from 23239 to 23230
2020-04-26 00:40:03.264 [vent.ItemStateChangedEvent] - CPU_Load5 changed from 0.5 to 0.8
2020-04-26 00:40:04.100 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23230 to 23229
2020-04-26 00:40:04.102 [vent.ItemStateChangedEvent] - Storage_Available changed from 23230 to 23229
2020-04-26 00:40:05.255 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23229 to 23220
2020-04-26 00:40:05.257 [vent.ItemStateChangedEvent] - Storage_Available changed from 23229 to 23220
2020-04-26 00:40:06.333 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23220 to 23219
2020-04-26 00:40:06.340 [vent.ItemStateChangedEvent] - Storage_Available changed from 23220 to 23219
2020-04-26 00:40:07.708 [vent.ItemStateChangedEvent] - Storage_Available_SH changed from 23219 to 23216
2020-04-26 00:40:07.712 [vent.ItemStateChangedEvent] - Storage_Available changed from 23219 to 23216
2020-04-26 00:40:08.607 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.940 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.626 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.987 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.641 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.988 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.651 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.991 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.657 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.993 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.663 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.994 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.668 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-25 23:30:00.056 [WARN ] [tv.internal.handler.SamsungTvHandler] - Channel 'samsungtv:tv:0ee6b280_00fa_1000_b692_c4731e7637fb:power' not supported to 2020-04-26 00:40:07.940 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.672 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.997 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.682 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:07.998 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.696 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.000 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.openhab.io.openhabcloud.internal.CloudService@a9c981' takes more than 5000ms.
2020-04-26 00:40:08.711 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.001 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.719 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.940 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.987 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.731 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.987 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.988 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.739 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.003 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.763 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.005 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.776 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.081 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.782 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.988 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.991 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.786 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.087 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.790 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.090 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.802 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.991 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.993 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.811 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.993 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.994 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.818 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.994 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.997 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.828 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.092 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.847 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.997 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:07.998 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.848 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.094 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.853 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:07.998 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.000 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.openhab.io.openhabcloud.internal.CloudService@a9c981' takes more than 5000ms.
2020-04-26 00:40:08.856 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.099 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.openhab.io.openhabcloud.internal.CloudService@a9c981' takes more than 5000ms.
2020-04-26 00:40:08.859 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.101 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.864 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.103 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.868 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.104 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.871 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.000 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.openhab.io.openhabcloud.internal.CloudService@a9c981' takes more than 5000ms. to 2020-04-26 00:40:08.001 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.875 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.105 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.888 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.107 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.891 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.001 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.003 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.902 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.108 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.906 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.003 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.005 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.912 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.110 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.920 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.111 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.928 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.113 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.934 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.114 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.939 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.116 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.947 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.005 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.081 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.948 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.117 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.955 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.255 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.961 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.256 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.968 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.258 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.973 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.260 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.979 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.262 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.985 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.264 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.991 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.266 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.995 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.270 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.999 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.272 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.003 [vent.ChannelTriggeredEvent] - logreader:reader:55134f32:newWarningEvent triggered 2020-04-26 00:40:08.275 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.005 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.081 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.087 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.009 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.087 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.090 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.014 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.090 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.092 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.018 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.092 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.094 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:09.023 [vent.ItemStateChangedEvent] - Last_Warning changed from 2020-04-26 00:40:08.094 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms. to 2020-04-26 00:40:08.099 [WARN ] [me.core.internal.events.EventHandler] - 

openhab.log

2020-04-25 17:59:09.024 [INFO ] [.eclipse.smarthome.model.script.RULE] - --> Markise vind
2020-04-25 18:29:09.074 [INFO ] [.eclipse.smarthome.model.script.RULE] - --> Markise vind
2020-04-25 21:30:00.013 [INFO ] [.smarthome.model.script.sunset.rules] - -->NIGHT ON
2020-04-25 23:30:00.038 [ERROR] [binding.lgtv.internal.LgtvConnection] - sendtotv but connection status is CS_NOTCONNECTED
2020-04-25 23:30:00.056 [WARN ] [tv.internal.handler.SamsungTvHandler] - Channel 'samsungtv:tv:0ee6b280_00fa_1000_b692_c4731e7637fb:power' not supported
2020-04-25 23:30:18.831 [ERROR] [binding.lgtv.internal.LgtvConnection] - IO Exception at Connection to: http://192.168.1.24:8080/udap/api/pairing
2020-04-25 23:30:18.833 [INFO ] [binding.lgtv.internal.LgtvConnection] - sendpairkey with result=#error/connect-1 connectionstatus=CS_NOTCONNECTED
2020-04-26 00:40:07.940 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.987 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.988 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.991 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.993 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.994 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.997 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:07.998 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.eclipse.smarthome.io.rest.sse.internal.listeners.SseEventSubscriber@ca12db' takes more than 5000ms.
2020-04-26 00:40:08.000 [WARN ] [me.core.internal.events.EventHandler] - Dispatching event to subscriber 'org.openhab.io.openhabcloud.internal.CloudService@a9c981' takes more than 5000ms.

I recommend starting with top command and see what process is being used most. Then look at other Linux commands for drilling down to find the culprit.

what user interface do you use?
server side events seem to be involved which I’m guess is updating a user interface

Ok. I am using habpanel🤨

how many tablets or whatever do you have running habpanel? does it run 24/7 ?

2 tablets, a computer and a couple og phones, bit it only runs when I open it to check some info. Not running 24/7 on any of them…
The top command did not give me info - basically the only process running is openab…

This is the syslog…

Apr 27 18:56:10 openhab karaf[30198]: #011at org.eclipse.osgi.launch.EquinoxFactory.newFramework(EquinoxFactory.java:24)
Apr 27 18:56:10 openhab karaf[30198]: #011at org.apache.karaf.main.Main.launch(Main.java:256)
Apr 27 18:56:10 openhab karaf[30198]: #011at org.apache.karaf.main.Main.main(Main.java:178)
Apr 27 18:56:10 openhab systemd[1]: openhab2.service: Main process exited, code=exited, status=255/EXCEPTION
Apr 27 18:56:10 openhab systemd[1]: openhab2.service: Failed with result 'exit-code'.
Apr 27 18:56:11 openhab Node-RED[318]: 27 Apr 18:56:11 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:12 openhab Node-RED[318]: 27 Apr 18:56:12 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:13 openhab Node-RED[318]: 27 Apr 18:56:13 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:14 openhab Node-RED[318]: 27 Apr 18:56:14 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:15 openhab Node-RED[318]: 27 Apr 18:56:15 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:15 openhab systemd[1]: openhab2.service: Service RestartSec=5s expired, scheduling restart.
Apr 27 18:56:15 openhab systemd[1]: openhab2.service: Scheduled restart job, restart counter is at 891.
Apr 27 18:56:15 openhab systemd[1]: Stopped openHAB 2 - empowering the smart home.
Apr 27 18:56:16 openhab systemd[1]: Started openHAB 2 - empowering the smart home.
Apr 27 18:56:16 openhab karaf[30302]: mkdir: cannot create directory ‘/var/lib/openhab2/tmp’: No space left on device
Apr 27 18:56:16 openhab karaf[30302]: mkdir: cannot create directory ‘/var/lib/openhab2/tmp’: No space left on device
Apr 27 18:56:16 openhab Node-RED[318]: 27 Apr 18:56:16 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:16 openhab karaf[30302]: java.io.FileNotFoundException: /var/lib/openhab2/tmp/karaf.pid (No such file or directory)
Apr 27 18:56:16 openhab karaf[30302]: #011at java.io.FileOutputStream.open0(Native Method)
Apr 27 18:56:16 openhab karaf[30302]: #011at java.io.FileOutputStream.open(FileOutputStream.java:270)
Apr 27 18:56:16 openhab karaf[30302]: #011at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
Apr 27 18:56:16 openhab karaf[30302]: #011at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
Apr 27 18:56:16 openhab karaf[30302]: #011at org.apache.karaf.main.InstanceHelper.writePid(InstanceHelper.java:127)
Apr 27 18:56:16 openhab karaf[30302]: #011at org.apache.karaf.main.Main.launch(Main.java:243)
Apr 27 18:56:16 openhab karaf[30302]: #011at org.apache.karaf.main.Main.main(Main.java:178)
Apr 27 18:56:17 openhab karaf[30302]: !SESSION 2020-04-27 18:56:17.403 -----------------------------------------------
Apr 27 18:56:17 openhab karaf[30302]: eclipse.buildId=unknown
Apr 27 18:56:17 openhab karaf[30302]: java.version=1.8.0_222
Apr 27 18:56:17 openhab karaf[30302]: java.vendor=Azul Systems, Inc.
Apr 27 18:56:17 openhab karaf[30302]: BootLoader constants: OS=linux, ARCH=arm, WS=gtk, NL=en_US
Apr 27 18:56:17 openhab karaf[30302]: !ENTRY org.eclipse.osgi 4 0 2020-04-27 18:56:17.404
Apr 27 18:56:17 openhab karaf[30302]: !MESSAGE Error reading configuration: Unable to create lock manager.
Apr 27 18:56:17 openhab karaf[30302]: !STACK 0
Apr 27 18:56:17 openhab karaf[30302]: java.io.IOException: Unable to create lock manager.
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.storagemanager.StorageManager.open(StorageManager.java:698)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.storage.Storage.getChildStorageManager(Storage.java:1776)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.storage.Storage.getInfoInputStream(Storage.java:1793)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.storage.Storage.<init>(Storage.java:132)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.storage.Storage.createStorage(Storage.java:85)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.internal.framework.EquinoxContainer.<init>(EquinoxContainer.java:68)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.launch.Equinox.<init>(Equinox.java:31)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.eclipse.osgi.launch.EquinoxFactory.newFramework(EquinoxFactory.java:24)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.apache.karaf.main.Main.launch(Main.java:256)
Apr 27 18:56:17 openhab karaf[30302]: #011at org.apache.karaf.main.Main.main(Main.java:178)
Apr 27 18:56:17 openhab systemd[1]: openhab2.service: Main process exited, code=exited, status=255/EXCEPTION
Apr 27 18:56:17 openhab systemd[1]: openhab2.service: Failed with result 'exit-code'.
Apr 27 18:56:17 openhab Node-RED[318]: 27 Apr 18:56:17 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:18 openhab Node-RED[318]: 27 Apr 18:56:18 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:19 openhab Node-RED[318]: 27 Apr 18:56:19 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:20 openhab Node-RED[318]: 27 Apr 18:56:20 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:21 openhab Node-RED[318]: 27 Apr 18:56:21 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:22 openhab systemd[1]: openhab2.service: Service RestartSec=5s expired, scheduling restart.
Apr 27 18:56:22 openhab systemd[1]: openhab2.service: Scheduled restart job, restart counter is at 892.
Apr 27 18:56:22 openhab systemd[1]: Stopped openHAB 2 - empowering the smart home.
Apr 27 18:56:22 openhab systemd[1]: Started openHAB 2 - empowering the smart home.
Apr 27 18:56:22 openhab karaf[30407]: mkdir: cannot create directory ‘/var/lib/openhab2/tmp’: No space left on device
Apr 27 18:56:22 openhab Node-RED[318]: 27 Apr 18:56:22 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:23 openhab karaf[30407]: mkdir: cannot create directory ‘/var/lib/openhab2/tmp’: No space left on device
Apr 27 18:56:23 openhab karaf[30407]: java.io.FileNotFoundException: /var/lib/openhab2/tmp/karaf.pid (No such file or directory)
Apr 27 18:56:23 openhab karaf[30407]: #011at java.io.FileOutputStream.open0(Native Method)
Apr 27 18:56:23 openhab karaf[30407]: #011at java.io.FileOutputStream.open(FileOutputStream.java:270)
Apr 27 18:56:23 openhab karaf[30407]: #011at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
Apr 27 18:56:23 openhab karaf[30407]: #011at java.io.FileOutputStream.<init>(FileOutputStream.java:101)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.apache.karaf.main.InstanceHelper.writePid(InstanceHelper.java:127)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.apache.karaf.main.Main.launch(Main.java:243)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.apache.karaf.main.Main.main(Main.java:178)
Apr 27 18:56:23 openhab Node-RED[318]: 27 Apr 18:56:23 - [warn] [openhab2-controller:Openhab] ERROR {"type":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":8080}}
Apr 27 18:56:23 openhab karaf[30407]: !SESSION 2020-04-27 18:56:23.915 -----------------------------------------------
Apr 27 18:56:23 openhab karaf[30407]: eclipse.buildId=unknown
Apr 27 18:56:23 openhab karaf[30407]: java.version=1.8.0_222
Apr 27 18:56:23 openhab karaf[30407]: java.vendor=Azul Systems, Inc.
Apr 27 18:56:23 openhab karaf[30407]: BootLoader constants: OS=linux, ARCH=arm, WS=gtk, NL=en_US
Apr 27 18:56:23 openhab karaf[30407]: !ENTRY org.eclipse.osgi 4 0 2020-04-27 18:56:23.915
Apr 27 18:56:23 openhab karaf[30407]: !MESSAGE Error reading configuration: Unable to create lock manager.
Apr 27 18:56:23 openhab karaf[30407]: !STACK 0
Apr 27 18:56:23 openhab karaf[30407]: java.io.IOException: Unable to create lock manager.
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.storagemanager.StorageManager.open(StorageManager.java:698)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.storage.Storage.getChildStorageManager(Storage.java:1776)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.storage.Storage.getInfoInputStream(Storage.java:1793)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.storage.Storage.<init>(Storage.java:132)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.storage.Storage.createStorage(Storage.java:85)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.internal.framework.EquinoxContainer.<init>(EquinoxContainer.java:68)
Apr 27 18:56:23 openhab karaf[30407]: #011at org.eclipse.osgi.launch.Equinox.<init>(Equinox.java:31)

Found the giant files…!
var/log/daemon.log is suddenly 11GB and the syslog is also 11GB…
How do I get rid of those files safely?

Does that mean on all these devices you open a browser, check habpanel and then close the browser? if you leave the browser open on any of these devices, even if it is sleeping, habpnel may still be running.

is this the error you said you see many times in the log?
how many items are in your habpanels?
are there any items in your habpanels that are no longer working or you deleted out of OpenHAB

that error above seems to indicate (I’m guessing) that the system is attempting to send an update to a subscriber (your habpanel) and it is timing out (taking to long)

Yeah you are right- I do it like you described, so they may of course be running as you said. Thing is though, that I have been doing it like that for years, and then suddenly last night, openHAB started using up 27GBs of space in 2 hours…

Maybe one of the tablet hung? 27GBs ? wow, and all of the space was log files? Did you look at what was filling up the drive?
I don’t use a Pi so no direct knowledge but is it possible the SD card is going bad?
Have you recovered the system? Is it back to running normally?

Yep-crazy! syslog and daemon.log went crazy:-) Just deleted them and trying reboot to see if it will recover…fingers crossed:-)

Up and running again with nothing abnormal in the logs…still haven’t found what caused the issue in the first place, but hoping it was a 1 time deal…