Re: monit not catching failed ping test

"[email protected]" <[email protected]>
Newsgroups gmane.comp.monitoring.monit.general
Message-ID <[email protected]>
Hello,

monit checks the service in intervals given by the "set daemon <x>" settings. If the interval between checks is long or the check is blocked by some service timeout/action, then the interval can be longer.

Please can you check the "set daemon" settings and run monit in debug mode?:

	1.) stop monit
	2.) monit -vI

Best regards,
Martin


> On 8 Mar 2019, at 16:49, Fant, Andrew (NIH/NIDA) [E] <[email protected]> wrote:
> 
> Good morning.
>      I have a small monitoring setup with m/monit 3.7.2, using monit 5.25.2 as the agent.   There are a couple of systems that I cannot install monit on that I still need to be aware of any downtime, so I have added them as ping checks in the monitrc on the host where I installed m/monit.  Yesterday, one of those remote systems went down, but monit and m/monit didn’t report an alert for it and still have its status as OK.  Using anonymized information,  the entry in the monitrc on host1 is:
>  
> CHECK HOST host2_ping with ADDRESS 192.168.1.2
>         IF FAILED ping THEN ALERT
>  
> And from the command line on host1:
>  
> host1% monit status host2_ping
> Monit 5.25.2 uptime: 48d 19h 8m
>  
> Remote Host 'host2_ping'
>   status                       OK
>   monitoring status            Monitored
>   monitoring mode              active
>   on reboot                    start
>   ping response time           -
>   data collected               Fri, 08 Mar 2019 10:41:33
>  
> But:
>  
> host1% ping host2
> PING host2.example.org <http://host2.example.org/> (192.168.1.2) 56(84) bytes of data.
> From host1.example.org <http://host1.example.org/> (192.168.1.1) icmp_seq=1 Destination Host Unreachable
> From host1.example.org <http://host1.example.org/> (192.168.1.1) icmp_seq=2 Destination Host Unreachable
> From host1.example.org <http://host1.example.org/> (192.168.1.1) icmp_seq=3 Destination Host Unreachable
>  
> Clearly there is a disconnect between the OS-provided ping utility and what monit is seeing.   I’m sure that it’s probably a simple error in configuration, but I am not seeing what I did wrong.   Can someone please set me on the correct path?
>  
> Thank you
>  
> --                                        
> Andrew Fant                      |            Systems Administrator
> [email protected] <mailto:[email protected]>       |      Lei Shi Lab , NIH/NIDA/IRP
> (443)740-2849                   |
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