High CPU usage after migration to OH4

[Andrew_Rowe]

@Lolodomo

I have read it is only spikes, meaning CPU is at 100% only at few moments in the day.

For me the is not the case. In my case, when it happens, the cpu pins at 100% and stays there until I do something about it. Either I must restart openHAB or run a script Cody wrote found in this post

Consistent 100% CPU use of safeCall-queue thread

Yes. Open openhab-cli console, and run the following commands: config:edit org.openhab.threadpool config:property-set safeCall 100 config:update You can confirm that it worked in several ways: In console, you can run these to view all current values: config:edit org.openhab.threadpool config:property-list You can do cat /var/lib/openhab/config/org/openhab/threadpool.config (depending on where your installation is located). Or you can drop the following JRuby script into OPENHAB_CONF/automa…

Here is the script. I just use the run now button to run it

org.openhab.core.common.ThreadPoolManager.field_reader :pools
tp = org.openhab.core.common.ThreadPoolManager.pools["safeCall"]

def unblock_thread_pool(tp)
  (tp.maximum_pool_size + 1).times do
    tp.submit { sleep 1 }
  end
end

unblock_thread_pool(tp)