When do service event handlers get called?

[Stanley Hopcroft]

Dear Sir,

Yes, the service event handler will be called when the service comes 
back up.

I think this is documented in the glorious Nagios docs.

I too log outage intervals in an mySQL DB; the intervals can only be be 
computed because the event handler is called at the end of the outage.

If you doubt this have a look at the logging options in nagios.cfg and
define a service handler and a dummy service that is monitored with a
plugin like,

#!/bin/sh

test_result='OK'
# test_result='FAIL'

case "$test_result" in 

FAIL)
        echo 'Failed. This service check always fails. Debug check/event 
handlers/notification etc.'
        exit 2
        ;;
OK)
        echo 'Ok. This service check always succeeds. Debug check/event 
handlers/notification etc.'
        exit 0
        ;;
esac

# Exercise event handler
# Go shell, go.

Yours sincerely.

-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.


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