Dear Ladies and Gentlemen,
I am writing to thank all that contributed to this _very_ useful
thread, Mr Daniel Drown for his chained patch, and to those who adapted
the patch for nagios 1.2.
Thank you very much.
The patch quoted by Mr Leaman and Michael at OptusNet.Com.AU=20
. applied cleanly to a 1.2 Nag with local ePN patches=20
I found I needed to set --fuzz=3D3 and --ignore-white-space to get
all the hunks to succeed.
. generates lots of unhealthy sounding warnings (whether they are
unhealthy or not, I can't comment. The code works as advertised.)
. produces a great _boost_ in CGI performace.
I'd have to benchmark the pair to quantify the acceleration but it=20
is _good_. For example a hostgroup with 24 hosts and 84 services that
used to load in an extremely relaxed manner, now loads _quickly_.
The result is very impressive.
This installation is very modest: 192 hosts, 383 services on a box
running SEC, apache, no database, snmptrapd, snmpd, sendmail and
sshd. Load average <=3D 30% on a Dell 350, Celeron 833/256MB RAM/IDE (no
Nag optimisation apart from parallelisation, ePN, and chained hash
patch [Yay!]).
Performance Information
Last Updated: Fri Mar 26 19:50:19 EST 2004
Updated every 90 seconds
Nagios=AE - www.nagios.org
Logged in as anwsmh =20
=20
Program-Wide Performance Information
Active Checks:
Time Frame Checks Completed
<=3D 1 minute: 31 (7.9%)
<=3D 5 minutes: 295 (75.6%)
<=3D 15 minutes: 332 (85.1%)
<=3D 1 hour: 332 (85.1%)
Since program start: 332 (85.1%)
Metric Min. Max. Average
Check Execution Time: < 1 sec 33 sec 1.487 sec
Check Latency: < 1 sec 1 sec 0.015 sec
Percent State Change: 0.00% 0.00% 0.00%
Passive Checks:
Time Frame Checks Completed
<=3D 1 minute: 0 (0.0%)
<=3D 5 minutes: 0 (0.0%)
<=3D 15 minutes: 0 (0.0%)
<=3D 1 hour: 0 (0.0%)
Since program start: 0 (0.0%)
Metric Min. Max. Average
Percent State Change: 0.00% 0.00% 0.00%
I am very pleased with the result and than Mr Down very much for his
work.
Others have noted that the availability and trend CGIs need more work
with this patch. This is not an issue for me; should it be, I will
follow Mr Leamans advice and use unpatched versions.
Yours sincerely.
--=20
------------------------------------------------------------------------
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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