Re: [pcp] pmie support for string-typed metrics

[Nathan Scott <nathans@xxxxxxxxxx>]

----- Original Message -----
> On 02/05/16 11:36, Mark Goodwin wrote:
> > ...
> 
> If I am understanding the discussion so far, the request is for
> (a) don't log unless changed, and
> (b) log no more frequently than some delta
> 
> The (b) part provides the "rate limitation" and tells pmlogger how
> frequently to check for a change (this will be much simpler to explain
> and implement than checking on every single pmFetch for any metric).
> 
> So I think it needs to be something like ...
> 
> log [advisory|mandatory] on [default|every N timeunits] [if changed] {
>       metric ...
> }
> 
> And this can only apply to discrete or instanteous metrics (it would
> change the semantics for counters during replay).
> 

"Yep" to all the above.

cheers.

--
Nathan