[email protected] wrote:
>
> I have a most perplexing couple of issues:
> ---- Nagios appears to be returning '1' and this is causing an
> erroneous system UP notification
> - seems like is should be returning -1, or 3 = UNKNOWN which I
> would assume would not translate to system UP
>
> 0203 0426 05 [1138969565] HOST ALERT: system14;UP;HARD;1;(No output!)
> 0203 0426 05 [1138969565] HOST NOTIFICATION:
> mtools;system14;UP;host-notify-by-mknotify;(No output!)
To the best of my understanding, the Nagios status is taken directly
from the /return value/ of the check command. So in your case, it seems
like the check_ping plugin is not producing any output but still
returning a status code of 0. I'm not sure if Nagios reads the stderr or
just stdout; I think it might be just stdout, in which case it might be
printing diagnosis messages to its error stream. Regardless, the plugin
output is essentially ignored by Nagios - it's only ever displayed to
the end user.
Basically, the plugin shouldn't be returning 0 unless the host is up. It
should also be producing some sort of output.
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Original poster: [email protected]