On Tue, May 22, 2012 at 4:35 PM, James R Penick <[email protected]>wrote:
> >>-> In addition to a signature, I think we would need a sequence number > >>to be embedded by the agent for each message sent, so that loss of > >>messages, or forgery of messages, can be detected by the collector and > >>further audit process. > > >OK. We have a message id, but I assumed those would be used to eliminate > >duplicates so this sounds like something different or new. It implies > >that the agent knows its own id (not hard) and keeps up >with a sequence > >counter (more difficult, though not impossible). > >Did you have something in mind for how to implement that? > > > If we're submitting messages every given node with a predictable > frequency, we should be able to determine that a message was lost simply > by noting a gap in the timestamps. Also, if we're sending cumulative > statistics then the loss of a single message (or even a fair number of > them) shouldn't impact our ability to meter too much. > I don't know if we have cumulative statistics. What does libvirt actually give us? > > -James > >
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