[SOLVED] System slows down, Unknown Error messages

Load raising:

I rebooted 3 times after cache clean…
I never had this with 2.4.0…
Is it a bug in 2.5.1-2?

The only differences between 2.5.0-1 and 2.5.1-2 are in the addons.
It was also organized so the addons could be periodically updated separate from the core which is fixed at 2.5.0.

If you can, downgrade to 2.4 to see if it is really caused by the update.

After 3rd reboot the system was hanging completly after an uptime of 45 minutes
I cleaned cache again and I did:
sudo rm -rf /var/lib/openhab2/cache/*
sudo rm -rf /var/lib/openhab2/tmp/*

let’s see

After the 3rd reboot the load was still there and the system was unusable.
It crashed! No more entries in event.log or openhab.log
Then I made a restore of Backup (which is made every night)
Then I did:

sudo openhab-cli clean-cache
sudo rm -rf /var/lib/openhab2/cache/*
sudo rm -rf /var/lib/openhab2/tmp/*
(Both rm commands hadn't affect something, because the directores where cleared with clean-cache command)
Then I used the "fix permission" option in openhabian-config tool.
Afterwards I changed the start order from "delay rules on startup for quicker systemstart" to "normal systemstart" in openhabian-config tool.
Then I restarted the system.

After it was up and running I rebooted the system again.
Current Load situation is good after 15 hours:

I’m not quite sure if I should change back to “delay rules on startup for quicker systemstart” in openhabian-config tool.