Minimserver using 100% CPU on QNAP NAS

[schliden]

(26-12-2025 01:50)schliden Wrote:  Hi,

I have been using minimserver for many years..

I have NOT made any changes (neither updated minimserver nor nas) but minimserver appears to be using 90-100% of NAS CPU all of a sudden.

I have rebooted the NAS and minimserver starts and runs, but continues to use CPU heavily.

top

11881 admin S 40M 11879 79.6 8.1 java

ps -ef | grep java | grep -v grep

11881 admin 41864 S /usr/local/jre/bin/java -Duser.timezone=Australia/Melbourne -jar ../lib/mserver.jar --launchrc --noconsole --nohup

When I stop minimserver, NAS CPU use falls to normal levels ~15-20%

Is there a way to determine what might be causing this ?

Thanks

After much testing, it appears that it was a large playlist causing the issue (I hope).

Admittedly, it was rather large, many 1000's of lines .m3u..

Is there a practical limit (and or suggested maximum) to the size of m3u playlists ?

* Also, after removing the loaded playlist from the UPnP Controller, I needed to stop and restart minimserver on the NAS to reduce the CPU use... (Would it recover naturally or is this stop/restart required ?
)