Strange Host check behaviour

[Sand Philipp]

Hi,

I'm using Nagios 2.0a1. And I experienced a strange Hostcheck behavior last night.
As far as a knew/understood so far, the host checks are only executed when a service check is gone critical... not in this case i experienced the last night.
Here's the story:
I Have a host with one service check attached. Last night, I got the following Alert Log Entries:

[29-11-2004 01:24:04] SERVICE ALERT: hostxyz;SAPINFO Check;CRITICAL;HARD;1;ERROR connection to host 192.168.123.123, service 3303 timed out
[29-11-2004 01:24:03] HOST ALERT: hostxyz;DOWN;HARD;5;CRITICAL - Plugin timed out after 10 seconds
[29-11-2004 01:23:52] HOST ALERT: hostxyz;DOWN;SOFT;4;CRITICAL - Plugin timed out after 10 seconds
[29-11-2004 01:23:42] HOST ALERT: hostxyz;DOWN;SOFT;3;CRITICAL - Plugin timed out after 10 seconds
[29-11-2004 01:23:32] HOST ALERT: hostxyz;DOWN;SOFT;2;CRITICAL - Plugin timed out after 10 seconds
[29-11-2004 01:23:22] HOST ALERT: hostxyz;DOWN;SOFT;1;CRITICAL - Plugin timed out after 10 seconds


No Service or host Alerts before those Messages.
First Question: Why were the Host checks executed before the Service check gone critical???

Second Question: After those Alerts, no alert came until I corrected the Service check, although the Host had been reachable. With which kind of algorithm are the Host checks scheduled, when the Host is down??

Regards,
Philipp

_____________________________

Philipp Sand
OC-CC-TEC-SYS

SYCOR GmbH
Heinrich-von-Stephan-Straße 1-5
D - 37073 Göttingen

Telefon	+49 (0) 551 / 490 - 0
Telefax	+49 (0) 551 / 490 - 232468

philipp.sand at sycor.de
www.sycor.de
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