On Fri, Jan 20, 2012 at 08:15:45AM -0500, Drew Weaver wrote: > RTG uses MySQL for it's backend, so you can basically setup queries however > you like and you can use RTGPOLL to graph multiple interfaces as well. > > It's a super good tool and I think there is a group working on RTG2 at > googlecode (I think). > > -Drew >
I agree with Drew -- I have several functions that do their best to correlate readings amount multiple interfaces, combine them with other readings near the same time intervals, and output a single set of aggregate bandwidth data. One of RTG's big problems is scalability -- as you monitor more and more devices, going further and further back in time, you're ending up with a gigantic MySQL dataset that can be difficult to manage. Fortunately, there are open-source tools to help manage this. There's a Ruby program that automates consolidation of multiple rows into single rows based on configuration data -- allowing you to keep 5-minute readings of interface data for 2 months, then condensing it to 1 hour readings after that, with the flexibility to identify specific tables and specific timeframes to give you maximum control. -- Brandon Ewing (nicot...@warningg.com)
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