host macros - is $LASTHOSTDOWN$ per host (this host) or the last time a host went down ?

Stanley.Hopcroft at Dest.gov.au Stanley.Hopcroft at Dest.gov.au
Thu Jul 6 03:13:17 CEST 2006


Dear Folks,

Nagios 2.3 defines these host macros

$LASTHOSTDOWN$ This is a timestamp in time_t format (seconds since the
UNIX epoch) indicating the time at which the host was last detected as
being in a DOWN state. 

$LASTHOSTUNREACHABLE$ This is a timestamp in time_t format (seconds
since the UNIX epoch) indicating the time at which the host was last
detected as being in an UNREACHABLE state. 

I would like a global host event handler to insert a row in a table to
record outages. 

One possibility of doing so is have the event handler only act on a
HOST_UP event and use the macros above to
record the down time ($LAST_HOST_DOWN) and the up time (from either the
time the event handler runs or $LASTHOSTUP$).

Unfortunately, with Nagios 2.3, $LASTHOSTDOWN appears to be the time_t
value of the last event of any host
going down and not the time_t of when _this_ host went down.

What is the real meaning of $LASTHOSTDOWN$ ?

Is it the per host time_t of the time that the host was last detected as
being down ?

Does anyone have any other suggestions about capturing the times of a
host going down and coming up 
by an event handler ?

Thank you,

Yours sincerely.

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