On Jan 6, 2010, at 3:59 PM, Richard E. Brown wrote:
--- Dave Stempian wrote:
Map Status Thresholds
Suppose I have a map status probe for a map that contains 2000
wireless APs. I don't want a critical notification for the map
status probe if only one of that map's devices goes down (or into
alarm/warning/etc). I wish there could be a way to say, "set
critical alarm if 100 devices within this map are down", or, "set
warning if 10% of devices within this map are down", or something
else to that effect.
--- end of quote ---
To the IM-Talk list. Are there other use cases/places you would use
something like this?
NB I saw a similar application with the check_multi Nagios plugin,
that has a facility for something like this (see the "State
Definition" at http://my-plugin.de/wiki/projects/check_multi/configuration/file#state_-_state_definition
)
I don't have an immediate use for this functionality, but I can
definitely see it being useful in compute farms / clusters where you
would want to know if some percentage of your systems were offline/
overloaded/etc as well as in Dan's wireless AP case above.
The Nagios check_multi plugin looks like a good conceptual starting
point for a custom map status probe: InterMapper provides some basic
variables (total devices + number {OK, warning, alarm, critical, down,
unknown}) and probe writers set up appropriate parameters, calculation
variables & conditions the same way we do for SNMP probes.
Something could be cobbled together to fill the immediate need using
the new API in 5.2 (ugly perl + command line probe) but I think an
integrated map status custom probe type in a future version would be a
good addition...
-MG
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