[omd-users] Ways to improve scalability

Gerardo Ferreyra raptorg83 at gmail.com
Thu Dec 3 15:41:19 CET 2015


Angel,
 Hi. Wato --> Global settings. Service discovery. How often does it run?

Cheers!

2015-12-02 8:20 GMT-03:00 Angel L. Mateo <amateo at um.es>:

> El 02/12/15 a las 11:47, Sven Nierlein escribió:
>
>> On 02.12.2015 10:41, Angel L. Mateo wrote:
>>
>>> Hello,
>>>
>>>      We've been running omd for a time, but now we are having
>>> performance issues.
>>>
>>>      We have a OMD server running in a VMware VM with 8 cores and 16GB
>>> and load average is over 10 points. This server is monitoring 850 hosts
>>> with more than 3000 service checks. We have 9 different sites (one of them
>>> has no hosts neither checks, it is used just as a collector of the other 8)
>>> running all in the same server.
>>>
>>>      In order to improve performance we are studying two different ways:
>>>
>>> a) Moving each omd site to a different VM.
>>> b) Using mod_gearman ([1]) so check commands were distributed between
>>> different servers
>>>
>>>      Does anybody has experience using mod_gearman with omd?    What
>>> would you recommend? Any other suggestion?
>>>
>>> [1] https://labs.consol.de/nagios/mod-gearman/
>>>
>>
>>
>> 3k services doesn't sound that much. What kind of performance problems do
>> you have?
>>
>
>         We have very high CPU usage in top. Almost 100% of CPU usage with
> very low (most times even 0) idle and wait. All of the CPU load is due to
> user load.
>
>         I'm suspecting now that the problem could be a lot of snmp checks
> that I don't know its performance.
>
> --
> Angel L. Mateo Martínez
> Sección de Telemática
> Área de Tecnologías de la Información
> y las Comunicaciones Aplicadas (ATICA)
> http://www.um.es/atica
> Tfo: 868887590
> Fax: 868888337
> _______________________________________________
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>
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