No problem to give a "user oriented" view of what we do with "spoofing". The clusters we manage in my compagny ( Alcatel-Lucent) are equipped with 24 nodes, only two of the nodes are "main node" working in actif/standby, then only one of these two "main node" are operational at a time. Only "main node" run gmetad, but all the nodes run gmond. This "main node" already collect metrics from other nodes using a historic proprietary software and offer all these metrics through CLI, then all the metrics of all the nodes are already available on the "main node". Then to bring all the user metrics of all the nodes in Ganglia we only have to deliver one python script on the "main node" collecting the metrics on the proprietary CLI of the "main node" at send it using gmetric with the "spoof" option to preserve in the front-end the real node origin of each user metric. Without this option, we would need to deploy scripting on each node to collect locally the metrics...end also improve our proprietary software to open the CLI on no "main node"...moreover we only have python on the "main node"... As a summary : Without "spoofing" may be we would not use gmetric, and may be without gmetric we would not use Ganglia ? Christian.
----- Original Message ----- From: "Brad Nicholes" <[EMAIL PROTECTED]> To: "Alex Dean" <[EMAIL PROTECTED]>; <ganglia-developers@lists.sourceforge.net>; "Christian Gouret" <[EMAIL PROTECTED]> Sent: Tuesday, November 06, 2007 7:36 PM Subject: Re: [Ganglia-developers] questions on metrics aspython modules >>> On 11/6/2007 at 11:26 AM, in message >>> <[EMAIL PROTECTED]>, "Christian Gouret" <[EMAIL PROTECTED]> wrote: > Hello Brad, > I read the README pointed by the link you provide, and I see nothing > regarding the "spoofing" option introduced in the version 3.0.4 of > Ganglia. > Does it mean that with "python module", it'll not be any more possible to > use spoofing ( I can't believe it ) ? > Christian. > That is actually a question that I have. Up until now I have not touched the "spoofing" code at all. What was there before, should still work in the code that is currently in trunk. However, the XDR data packet restructuring that I am currently working on, affects the "spoofing" packets significantly. To this point, I have not be able to completely understand what the "spoofing" code is doing. I would like to understand the "spoofing" option better from a user point of view so that it can be either carried forward in 3.1 as-is or replicated in a python or C interface module. Maybe you can enlighten me on what "spoofing" is, how it is used and why. What is the expected out come or functionality? Brad ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
