You or your monitoring system notice a couple of so-called “zombie-processes” in the process list of your UCS domain controller.
root@dc:~# ps aux | grep Z USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 9383 0.0 0.0 0 0 ? Z 12:45 0:00 [xmlsec1] <defunct> root 9384 0.0 0.0 0 0 ? Z 12:45 0:00 [xmlsec1] <defunct> root 19222 0.0 0.0 12784 976 pts/0 S+ 14:14 0:00 grep Z
Affected are UCS 4.x hosts with SSO configured. Zombie processes arise when a parent process ends and did not ask his child for the data it requested initially.
You can safely ignore these processes. They will be cleaned up by the library at a later stage.
With a new release of UCS there might be an update to this issue.