Warnings when compiling glib chained-hash patched nagios

[Noah Leaman]

I too have had very good results with the chained-hash patch... With  
total of 9176 services (8334 are passive) among 389 hosts and more to  
come I am now getting usable CGI performance with the worse pages  
taking about 10-15 seconds to finish. (Not including the Maps, which I  
don't use). Sure, not the best times in the world, but I am very happy  
since without the patch, I looking at times of about 5+ minute (!)  
before the cgi process finished, but of course not without the web  
browser timing out first.

Overall, this makes me yearn (yes that's right, I said it) for 2.0!

--  
Noah

On Mar 26, 2004, at 1:01 AM, Stanley Hopcroft wrote:

> 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
>
> . applied cleanly to a 1.2 Nag with local ePN patches
>
>   I found I needed to set --fuzz=3 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
>   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 <= 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® - www.nagios.org
>    Logged in as anwsmh
>
>    Program-Wide Performance Information
>
>    Active Checks:
>          Time Frame       Checks Completed
>    <= 1 minute:           31 (7.9%)
>    <= 5 minutes:          295 (75.6%)
>    <= 15 minutes:         332 (85.1%)
>    <= 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
>    <= 1 minute:           0 (0.0%)
>    <= 5 minutes:          0 (0.0%)
>    <= 15 minutes:         0 (0.0%)
>    <= 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.
>
>
> --  
> ----------------------------------------------------------------------- 
> -
> 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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