host checks not running until services are restored

[frank]

Nagios 2.0b2 on Debian Sarge. Been running for about a month.

All my hosts use check_icmp (symlinked as check_host) for HOST checks.
Service checks for this particular host are done over SNMP.

I had a host go down last night at 1:16am. When it was rebooted, the SNMP 
daemon was not restarted because I failed to add it to system startup 
scripts. My fault of course. So I would expect all the _service_ checks to 
fail in this case. And they did.

What confuses me is that the HOST checks (icmp) weren't running at all 
until I restarted snmpd, allowing the service checks to complete properly. 
It appears that the host checks ran 10 times at 1:16am (per our global 
host config), sent out the "host down" alert, and then slept for over 9.5 
hours while the SNMP daemon was down. Meanwhile, service checks continued 
to run and return "UNKNOWN" values because of their inability to contact 
snmpd.


Is this expected behavior? Is it because the service checks return UNKNOWN 
instead of CRITICAL? I thought the proper action to be taken when a 
service check returns not-OK is to re-execute the host-check. Is this 
incorrect?

TIA
-Frank


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