High CPU and restarts after upgrade to OH4

[helmar74 (Helmar)]

Are you running out of Memory?

MAybe you have a look here:

openHAB 4 migration FAQ

Seeing many issues related to openHAB 4.0 migration, sometimes duplicated, I thought maybe it might help to create an overview of the different issues and their current status. Therefore I have compiled this initial FAQ based on observations. Before upgrading, please read: Upgrade Process Breaking Changes that Require Manual Interaction after the Upgrade Index openHABian upgrade failing due to Java upgrade TransformationService of type ‘JS’ is unavailable ScriptEngine for language ‘applica…

Very High Memory Usage and frequent restarts with OH4

Since I upgraded from 3.4.4 to 4.0, I have noticed that everything is very s l o w. Memory usage is high, though processor usage appears low: [image] And openHAB restarts on its own frequently. I get an email from iCloud every time the binding reconnects after a restart, and I have received 76 since I upgraded the evening of July 23. (I have no reason to think the iCloud binding is causing the problem, I only mention it because the email from iCloud is an easy way to track it). There is no…

Maybe you should increase in /etc/default/openhab:

EXTRA_JAVA_OPTS=“-Xms900m -Xmx2000m”

Of course depending on your hardware…