[Mimedefang] MIMEDefang and monit

[mimedefang at rana.at]

I'm using MIMEDefang and monit on Debian lenny, all up-to-date.

From time to time spamassassin, clamav and MIMEDefang stop working 
without any hints in the logfiles. 

After all I started using monit. No proplems with spamassassin and 
clamav, but the MIMEDefang process wasn't started again.

The startup-script for MIMEDefang will start 2 processes, mimedefang 
and mimedefang-multiplexor, and I believe, that's the problem, because 
the mimedefang-multiplexor still keeps running, while mimedefang 
crashed.

It seems to me that monit parses the output of the startup-script and 
therefor doesn't restart MIMEDefang properly (manually restart or 
stop/start no problem).

As I understood from the man-pages of monit, it first tries to stop 
the process, than start it again, so something like:
  invoke-rc.d mimedefang stop    (Debian style!)
  invoke-rc-d mimedefang start
or
  /etc/init.d/mimedefang start  
  /etc/init.d/mimedefang stop
  
If I do it manually (with killed mimedefang but running 
mimedefang-multiplexor it shows the following:
   # invoke-rc.d mimedefang stop
   Shutting down mimedefang:     /etc/init.d/mimedefang: line 307: kill: (9820) - No such process /usr/bin/mimedefang: no process killed [FAILED]
   Shutting down mimedefang-multiplexor:                       [  OK  ]
  
I think the "[  OK  ]"-Message prevents monit to trigger the 
start-up-script.

Killing both processes (and child-processes) make monit work like 
expected.

monit-configuration for mimedefang:
    check process mimedefang-milter with pidfile /var/spool/MIMEDefang/mimedefang.pid
        start = "/etc/init.d/mimedefang start"
        stop  = "/etc/init.d/mimedefang stop"
    if failed unix /var/spool/MIMEDefang/mimedefang.sock then start
    
logentries:
   Aug  7 19:25:46 e1 monit[9355]: 'mimedefang-milter' process is not running 
   Aug  7 19:25:46 e1 monit[9355]: 'mimedefang-milter' trying to restart 
   Aug  7 19:25:46 e1 monit[9355]: 'mimedefang-milter' start: /etc/init.d/mimedefang 
   Aug  7 19:25:46 e1 monit[9355]: 'mimedefang-milter' failed to start 
  
Tried changing the monit-configuration to:
    check file mimedefang.sock with PATH /var/spool/MIMEDefang 
      if changed timestamp then exec "/etc/monit/scripts/mimedefang-restart"   
      
but that doesn't work either (reasonable):
   Aug  7 18:50:47 e1 monit[9119]: 'mimedefang.sock' is not regular file 
   Aug  7 18:50:47 e1 monit[9119]: 'mimedefang.sock' trying to restart 
  
Is there another idea without the possible rewriting of the 
startup-script /etc/init.d/mimedefang  or does anyone have a working 
configuration for monit and MIMEDefang (possibly especially for 
Debian)? 

Thanks in advance
Christian