Possible bug with passive service check result processing in Nag 1.1

[Stanley Hopcroft]

Dear Ladies and Gentlemen,

I am writing to report a possible bug or bugs in Nagios-1.1 related to 
notification and passive service result processing.

1 Passive service check result processing

. the CRITICAL result causes the status.cgi to be updated but the OK 
result does not.

This is is Ok - the web interface goes red

Fri Jun 27 11:21:07 EXTERNAL COMMAND: 
PROCESS_SERVICE_CHECK_RESULT;Sir_A1_80;RisingAlarm: alarm threshold 
exceeded;2;Failed. Potential or emminent problem (broadcast storm or 
congestion ?): monitored value exceeded alarm threshold.

This one is not Ok - the web interfaces stays red

Fri Jun 27 11:25:07 EXTERNAL COMMAND: 
PROCESS_SERVICE_CHECK_RESULT;Sir_A1_80;FallingAlarm: below alarm 
threshold;0;Ok. Monitored value has fallen below alarm threshold.

2 Notification anomaly

Some checks cause notification others don't. Only a small subset of 
checks fail to notify (either for an OK -> CRITICAL or CRITICAL -> OK). 

3 Observations

3.1 service configs seem identical (I could use Patricks wonderful tool 
[Nagios::Config] to diff the servcie configs but they seem identical) 
for services that don't notify to those that do.

3.2 Nagios does _not_ log the NOTIFY event but it does log the HARD 
state change

Obviously then there are no MTA failures to deal with.

3.3 With the processe service check result problem, again, some passive 
service checks are Ok but at least 3 (of 20) are not.

In particular the trap handler that generates the processe service check 
result event is the same for those that update the GUI as those that 
doen't and in both cases, Nag logs the PROCESS_SERVICE_CHECK_RESULT 
event and fails to complain about its integrity.

3.4 The numbers are

active checks	357
passive checks	28
OS		FreeBSD 4.7-RELEASE
loadaverage	<= 0.4

I haven't started to debug this other than going back to 1.0 (since this 
is a production Nag).

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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