problem with dead processes

[Avi Vigder]

 

We run monit 5.4 and monitor large number of processes (1K-2K).

 

When I kill all the processes. Most are restarted by monit.

but some are marked as running although the processes is not alive.

 

I’ve notices that monit uses getpgid() to determine if the processes is alive, and it seems that the system call returns a positive value although the pid does not exist (checking with ps –ef).

 

Any ideas?