High latencies problem.

[D. Emmanuel Feinsmith]

http://archive.groundworkopensource.com/groundwork-opensource/trunk/bronx/

On Feb 20, 2009, at 5:22 AM, Brad O'Hara wrote:

> Can you provide a link to the code?
>
> Brad
>
> On Thu, 19 Feb 2009 19:12:24 -0800
> "D. Emmanuel Feinsmith" <daniel at danielemmanuelfeinsmith.com> wrote:
>
>> Another note on this, the event broker that I am referring to can
>> both buffer results in memory (to queue them up until Nagios is
>> ready), and it can also queue them up in a dynamically sized Sqlite
>> database, which also removes the command pipe size limitation. I have
>> seen it handle 50,000 to 75,000 service check results on a dual CPU
>> box with 4g RAM without any problem or significant latency issues.
>> These kind of results were the basis for my earlier statement that
>> the fundamental internal code of nagios is pretty fast, you just need
>> to find quick ways to get the data in.
>>
>> Once nagios has captured the raw host and service check results,
>> it's pretty efficient, even in the 2.x codeline.
>>
>> Daniel.
>>
>> On Feb 19, 2009, at 5:18 PM, D. Emmanuel Feinsmith wrote:
>>
>>> I have implemented an open source Nagios Event Broker which is a
>>> multi-threaded Event Broker written in C which replaces NSCA and
>>> inserts the service/host check results directly into the internal
>>> nagios check result queue, completely bypassing the command pipe
>>> and the command pipe reader thread. It also allows you to do
>>> remote command execution and a bunch of other things.
>>>
>>> Daniel.
>>>
>>> On Feb 19, 2009, at 3:05 PM, Paul Fitzpatrick wrote:
>>>
>>>> I am also using the command pipe to submit passive service checks
>>>> via nsca to a master nagios host which does notifications and
>>>> runs event handlers.   I am also interested in knowing what is
>>>> the alternative to the command pipe referred-to by Daniel.
>>>>
>>>> On Thu, Feb 19, 2009 at 1:51 AM, <yann.jouanin.list at intelunix.fr>
>>>> wrote:
>>>>
>>>> Could someone light me about how to use something else than
>>>> command pipe to
>>>>
>>>> improve performance?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, 17 Feb 2009 08:32:32 -0800, "D. Emmanuel Feinsmith"
>>>>
>>>> <daniel at danielemmanuelfeinsmith.com> wrote:
>>>>
>>>>> Alessandro,
>>>>
>>>>>
>>>>
>>>> Its inefficiency primarily arises when it needs to either
>>>>
>>>>> receive passive checks (through the command pipe bottleneck)
>>>>
>>>>
>>>>
>>>>>
>>>>
>>>>> The key to nagios scalability and latency reduction is to educe
>>>> the #
>>>>
>>>>> of fork/exec's to the smallest amount possible and keep away
>>>>> from
>>>> the
>>>>
>>>>> command pipe as much as you can if you are passive-check heavy.
>>>>
>>>>>
>>>>
>>>>> Daniel.
>>>>
>>>>
>>>>
>>>>
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>>>
>>> ------------------------------------------------------------------------------
>>> Open Source Business Conference (OSBC), March 24-25, 2009, San
>>> Francisco, CA
>>> -OSBC tackles the biggest issue in open source: Open Sourcing the
>>> Enterprise
>>> -Strategies to boost innovation and cut costs with open source
>>> participation
>>> -Receive a $600 discount off the registration fee with the source
>>> code: SFAD
>>> http://p.sf.net/sfu/XcvMzF8H_______________________________________________
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>>
>
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San  
> Francisco, CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the  
> Enterprise
> -Strategies to boost innovation and cut costs with open source  
> participation
> -Receive a $600 discount off the registration fee with the source  
> code: SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
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------------------------------------------------------------------------------
Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
-Strategies to boost innovation and cut costs with open source participation
-Receive a $600 discount off the registration fee with the source code: SFAD
http://p.sf.net/sfu/XcvMzF8H