Kettle is running version 5 stable on Debian stable. I have 3 jobs very simple. Get files, ftp, move files, delete files and finish. Jobs run every 10 minutes and after 2 days java use 2 core at 100% :

when I use htop I can see : thise process "java -Xmx512 -XX:MaxPermSize=256m" using 100% and running 10 times. No log error. How can I debug or fixes thise issue ?

I have 8Gb of Ram, and mem is free. No swap.