More passive problems

[Jason Lancaster]

Dan,
Can you give us a better description of your environment? Are you only
running one Nagios server or do you have a central server that this
server is sending statistics to? What external command file frequencies,
interleaving, and aggregate methods are you using in your Nagios.cfg
file?

-Jason

-----Original Message-----
From: nagios-devel-admin at lists.sourceforge.net
[mailto:nagios-devel-admin at lists.sourceforge.net] On Behalf Of Dan Rich
Sent: Saturday, May 10, 2003 15:20
To: nagios-users at lists.sourceforge.net;
nagios-devel at lists.sourceforge.net
Subject: [Nagios-devel] More passive problems


I am concerned with the way Nagios appears to handle passive alerts.  As
I
mentioned before, I am using a script to monitor a system farm of
several
hundred machines.  Every five minutes this script submits passive checks
for
each machine into Nagios.

Doing the above I frequently see many (for large values of many,
sometimes >
100) of Nagios processes that are blocked on a lock file in the var
directory.
 It looks like this is due to the process that is reading the passive
checks
from the named pipe.  However, this has frequently led to system loads
over
100, and this morning brought the system to a griding halt.

Does anyone have any idea why the passive checks are causing this
problem?  If
I stop the cron job that generates the checks and restart Nagios the
load goes
away and doesn't return.  By whole point in doing this in the first
place with
passive checks was to avoid the load on the system caused by hundreds of
processes having to run every few minutes, but that seems to have
backfired.

-- 
Dan Rich <drich at employees.org> |   http://www.employees.org/~drich/
                               |  "Step up to red alert!"  "Are you
sure, sir?
                               |   It means changing the bulb in the
sign..."
                               |          - Red Dwarf (BBC)



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