I’ve been battling this issue since April first reported here and then in the safeCall thread here
At one point I found a Jruby rule with a syntax error. At that point the CPU was pinning at 100% every half an hour or 45 minutes. Disabling that rule made things calm down a little but it would still happen once or twice a day. I’ve since disabled most my rules but it still happens.
For awhile I was setting safeCall to 100 as described here by Cody but it did not survive reboots and seem to only put the problem off for awhile, not cure it.
Jan also mentioned a bug in the RRD persistence service (since fixed) might be the culprit but I’ve disabled all persistence services and the problem persists.
I use the following bindings:
Amazon Echo
IP camera
Astro
Lifx
TPLink
Hue (still on V1)
MQTT
Network
OpenWeatherMap
Shelly
Zwave
Zigbee
Apt install OH on Dell desktop with Mint Linux 19, I3, 8 Gbs RAM, 1 Tbs spinning HD
DSL and Jruby rules all UI based, no file configured anything
Heck, I just got home from work and it’s pinned right now!