How does TND monitor for the existence of a process?

[myonker]

I have a process (cron) that is being monitored through the system agent. everytime cron executes multiple commands tng says the /usr/sbin/cron process has stopped when in fact it hasn't. How does tng determine if a process is up/down? any info would be greatly appreciated...thanks in advance

 

[gdvissch]

It looks like you're doing this on UNIX
While monitoring processes, TNG can do several things:

check for a restart (based on PID)

check for number of instances, with a MIN or MAX value(I suspect this *could* be your problem if your MIN=MAX=1 an alert is raised when more than 1 instance is found ...)
verify your process as monitored = /usr/sbin/cron not just cron as this could mean it finds an other instance as soon as another command as cron as some sort of parameter in its command line (can't remember exactly but TNG might look at process list and use "cron" in a regex)

check for resource usage (mem, cpu)

number of threads
etc...

I hope this can help you a little further ...