Monit does not start flxlm

[Hearns, John]

I am using Monit to monitor and restart if necessary some Flexlm licensing servers.

 

I am checking if port 1999 is open on a remote server, and restarting f necessary.

The snippet is:

 

 

check host license3 with address 1.2.3.4

 

start program = "/usr/bin/ssh  license3 /sbin/service flexlm start"  with timeout 20 seconds

stop  program = "/usr/bin/ssh  license3 /sbin/service license stop"   with timeout 20 seconds

     if failed port 1999 type tcp with timeout 5 seconds then restart

 

If I stop the license server Monit will detect this, and I can see that the stop then start command is run.

The frustrating thing is that the Flexlm server immediately dies.

 

I can start the license server OK when running that ssh command fromt he command line.

 

If I install monit locally on the license server license3 and use

 

start program = “/sbin/service flexlm start”

 

I get the same thing, ie the command line works, but when Monit runs the command it does not.

 

Am I barking up a wrong tree here – does Monit always require a PID for a process, even though all I want to do is monitor a port?

 

 

 

Dr John Hearns | McLaren Racing Limited
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