Re: Multi-Volume Archive + Live Data Playback for PCP Client Tools

[Dave Brolley <brolley@xxxxxxxxxx>]

On 10/02/2014 10:52 AM, Frank Ch. Eigler wrote:
> nathans wrote:
> > I didn't follow the need to talk to pmlogger - what was the rationale
> > there?
> In the grand unified world, there will be a need to talk to
> -something- that has both historical data and live data.  Making
> pmlogger into a network server would make it possible to have libpcp
> engage in conversation with only a single thing.  pmlogger already
> knows about its own archives as well as the pmcd it's pulling from.
> No coincidences or client-side magic required, so to speak.
Yes, that was the idea behind this suggestion. This would only be 
required for archive-transitioning-to-live situations. Historical-only, 
which is what I will address initially need not use a pmlogger and, in 
fact, a pmlogger need not even be running for this case.
It just seemed to me that the archive-to-live case implied the existence 
of one or more running pmloggers and that each was already managing 
everything needed to make the transition.
Dave