After upgrading to SPS 6.0.12, performance was degraded.
The internal logs reported the following error
“tsadaemon: ERROR (root@localhost) [Errno 24] Too many open files”
Multiple segfaults occurred and core files generated.
Check the internal logs for the error "[Errno 24] Too many open files” and see which service is associated with the error.
Restart that service
In this case restarting tsa.service resolved the issue.
# systemctl restart tsa.service