I'm having some troubles with a server, part of a 3 nodes cluster in a production environment, running ELK 6.7 that goes out of memory. To do some troubleshooting I've tried to execute
jstack -l pid
to see how many threads is running but the command takes 100% of CPU and produce no results even after 20 minutes. Trying with another 3 nodes cluster with ELK 6.2.4 version the results come out in seconds.
I would know if it is a normal behaviour or if there is some recurrence in java processes for new version.
Thank you very much.