Instable system with heavy file based config when migrating to OH 4

[MatzeMuc86]

• Upgrading my OH 3.4 system to OH 4.0 on Raspberry Pi 4 with 8 GB RAM via openhabian config
• Keeping all file based configs (almost no UI based config)
• One CPU was fully on load, other 3 not used
• OH system was not able to boot fully and started to reboot. Only when reducing amount of files (things, items, rules) OH system could even start successfully
• OH 4 clean fresh setup via openhabian enabled OH system to boot with all files, 4 CPUS used in parallel
• First action of rule takes up to 30 seconds even though trigger (e.g. item change) is visible on log output; next action of same rule reacts immediately then (=> feels like rule is not fully loaded?)
• If any changes on the files are made (e.g. deleting comments) OH starts to slow down until it restarts OH service itself
• When checking something in UI, system is extremly slow (much slower then on OH 3.4), e.g. showing rules, non semantic items etc.

Your Environment

• OH 4.0.4 on Raspberry Pi 4 with 8 GB RAM, no other service / app on same system
• Setup via openhabian
• 24 thing files with 255 things
• 45 items files with 1809 items
• 57 rule files with 305 rules
• InfluxDB2 used on other physical machine for persistance

Happy to share logs, TRACE just generated hundred thousand of log files => please let me know how to proceed best / efficiently.

[openhab-bot]

This issue has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/oh-3-4-to-4-0-on-rp4-massive-performance-issues/150629/7

[openhab-bot]

This issue has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/oh-3-4-to-4-0-on-rp4-massive-performance-issues/150629/19