Service notifications when host is down

[Ben Whaley]

 > I though of setting a 'ping' service check on the host, and making 
all other
 > checks dependent on it, but that seems to me to be more of a 
workaround than
 > a solution, and it doesn't fully solve the scheduled downtime problem.

Yes, we had the same idea. I am currently using some other, similar work 
arounds to solve problems that Nagios doesn't have a solution for but 
they have introduced more problems than they've fixed.

What's strange about this particular case, however, is that Nagios 
*usually* catches it. For example, in the following sequence, the host 
down alert was generated before the service checks, thus avoiding the 
unnecessary notification:


[04-21-2004 06:49:06] SERVICE ALERT: 
host-xxx;load;CRITICAL;HARD;1;CHECK_NRPE: Socket timeout after 10 seconds.
[04-21-2004 06:49:06] SERVICE ALERT: host-xxx;Load Combo 
check;CRITICAL;HARD;1;(Service Check Timed Out)
[04-21-2004 06:49:06] SERVICE ALERT: host-xxx;httpd 
processes;CRITICAL;HARD;1;CHECK_NRPE: Socket timeout after 10 seconds.
[04-21-2004 06:49:06] HOST ALERT: host-xxx;DOWN;HARD;6;PING CRITICAL - 
Packet loss = 100%

Any ideas?

Thanks,
Ben

Steve Shipway wrote:
> Ben Whaley wrote:
> 
>>I had a problem this morning where a host was down but I 
>>received a service notification. I have disabled host 
>>notifications altogether but I don't want to know about a 
>>service being unavailable if a host is down. Below is from the 
>>Alert History.
> 
> 
> We have this problem as well.  I thought that Nagios was intelligent enough
> to spot host down, and just send a 'host down' alert rather than alerts for
> all the services on that host?  Also, if you put scheduled downtime on a
> host, surely it should automatically stop the service checks suring this
> time and notifications for services as well?  As far as I can see, even
> though the host is in downtime, the service checks keep going (and of course
> send out alerts...)
> 
> I though of setting a 'ping' service check on the host, and making all other
> checks dependent on it, but that seems to me to be more of a workaround than
> a solution, and it doesn't fully solve the scheduled downtime problem.
> 
> I'm guessing I've just set something up wrong, but I can't see what it is!
> 
> Steve
> 
> ---
> Steve Shipway: ITSS, University of Auckland
> Email: s.shipway at auckland.ac.nz  Web: http://www.steveshipway.org/  
> ** We can only discover new oceans when we have the **
> ** courage to lose sight of the shore.              **



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