Nagios and PNP Perfomance Issue

[Ross Fomerand]

Rodney,

Have a look at this page.

http://www.semintelligent.com/blog/articles/40/nagios-performance-tuning-ear
ly-lessons-learned-lessons-shared-part-45-scalable-performance-data-graphing

I¹m not quite sure the ramdisk part is necessary, but it will certainly
point you in the right direction as far as scaling pnp.

On 2/2/10 11:47 AM, "Rodney Ramos" <rodneyra at gmail.com> wrote:

> Hi everybody,
> 
> I´m using Nagios (3.2.0) to monitoring and colect perfomance data of 25.000
> hosts, with 50.000 services.
> 
> I have two central machines (one for backup) and 10 distributed servers to
> colect status and send them to the central servers.
> 
> It´s working but I´m having serious performance problems.
> 
> First the Tactical Overview on the central machines is taking almost 1 minute
> to refresh. I think that its because the status.dat file is too big (almost
> 100 MB).
> 
> Second, the adddon PNP 0.4.14 is taking a long time to process the performance
> data files. These files are increasing faster than the capaciy of
> process_perfdata.pl <http://process_perfdata.pl>  script to process them.
> 
> I´ve already implement all the recommendation to improve Nagios performance.
> Besides, I´ve already changed the npcd.cfg and process_perfdata.cfg parameters
> to improve the npcd and process_perfdata.pl <http://process_perfdata.pl>
> performance.
> 
> I tried to set "npcd_max_threads" in the npcd.cfg to 10, but than I started to
> lose data, because process_perfdata.pl <http://process_perfdata.pl>  finished
> itself by timeout, that I change to 300 seconds.
> 
> Can anyone help me to improve the performance of Nagios and PNP to this
> enviroment?
> 
> P.S.: All my Nagios servers are virtual machines with Red Hat. The central
> servers have 2 CPUs and 2 GB of memory. The colectors have 1 CPU and 1 GB of
> RAM. Do you think that change the central servers to physical machine I will
> have a big performance improvement? How much?
> 
> I think that this is a good test for Nagios. I have a demand to put 100.000
> hosts with 200.000 services in this enviroment!!!!. Is it possible? Has
> someone a Nagios configuration so big?
> 
> Thanks everybody.
> Rodney.
> 
> 
> 
> 
> 
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> -ROF
> 



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