Service Checks in Distributed mode

[Ian Marks]

My 2 current nagios servers are running on Dell 1750's. Each has a 
2.4GHz Xeon Processor and 2 Gigs of Ram. What type of specs would be 
needed if I were to add a central server that only deals with passive 
checks?  I am pretty sure I could come up with a smaller server; would 
it be better to use that for the centralized server, or move one the 
1750's into that role?

Thanks,
Ian

Demetri Mouratis wrote:
> On Mon, 21 Aug 2006, Ian Marks wrote:
>
>   
>> I have 2 nagios 2.5 servers running; both are doing active checks, but
>> one acts as the "central" server and receives passive checks from the
>> other.  I have it set up this way so our analysts will only have to
>> monitor "one" server.  I am seeing major delays with service checks on
>> the central server.  I am assuming my server is getting backed up trying
>> to process all the passive checks, so the active checks are only being
>> executed every 30-45 minutes.  Is this possible?  What would be the best
>> way to solve this problem, removing the passive checks?
>>     
>
> My suggestion in a Distributed environment is to have your Central server 
> perform only passive checks.  This cleans up the configuration a bit and 
> allows for the "one page to view" feature you are after.  If, for network 
> topology issues, you need to have two Distributed active Nagios boxes, I 
> would add a third, Central and have each Distributed send results over to 
> this third box.  It helps to rsync or otherwise copy the files from 
> Distributed to Central to avoid having multiple configuration points.
>
> If your total number of services monitored is above 1,000, I would suggest 
> a slight modification from what the docs suggest.  That is to use global 
> service event handlers to notify of changes versus ocsp.  This will cut 
> down on the number of updates to your Central server dramatically and 
> reduce the lag from a change on Distributed to that change being reflected 
> on Central.
>
> Any questions, please ask.
>
> -D
>
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-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null