Hi, Max -
> fche> 1.1) pmlogger needs to learn to write its output with what IIRC kenj
> fche> has referred to as "semantic units", ie., proper use sequencing of
> fche> write(2), fdatasync(), to put interdependent data on disk correctly.
>
> This was the biggest bugbear of NAS Manager (for those who remember)
> which tried to provide historical and live data using archives as main
> source of information. [...]
(A little more of the history would be great.)
> What would happen if pcp client is using PM_CONTEXT_HOST with new
> protocol? Will it be banned or will it be silently dropped back to
> current "live" sematic?
Certainly. The new protocol would just carry across the optional
pmSetMode bits, which for PM_CONTEXT_HOST would still default to
PM_MODE_LIVE. No visible change in behavior.
- FChE
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