Hi, I’m monitoring what is hopefully a fairly standard compute 
configuration using Ganglia, and want to take the opportunity of a v3.1 
upgrade to rationalise my configuration. I have about ~40,000 cores, in 
~10 geographic sites. Currently I also have a bit of a mess of Gmetad’s 
and WebFrontEnd's, being reported to by single Gmond's on each compute 
node. 

There are ~20 applications, hosted across multiple sites. Each application 
will have compute resources in different sites. I’m ambivalent about 
Gmond/Gmetad configurations, but I need to view data averaged by 
application, not location. For example, in the configuration below, I need 
to know CPU load across all of ApplicationA’s blades, but have no 
requirement to see CPU Load across Location1.

Physically
-Location1
--AppA
---HostX
---HostY
-AppB
-AppC

-Location2
--AppA
---HostZ
-AppB

-Location3
-AppA
-AppD

WebFrontEnd somewhere
-AppA
--HostX
--HostY
--HostZ
-AppB
-AppC
-AppD 

Logically (perhaps) I should have a Gmetad in each location, but I’m then 
having problems getting the data averaged by application on the central 
WebFrontEnd. Any help would be greatly appreciated.

A few other points;
* I’m limited to Unicast
* I do not mind whether each individual Gmetad, is linked to a 
WebFrontEnd, or not. 
* It is also not a absolute requirement to retain the existing rrd data.

Many Thanks
Nigel Leach

 


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