Re: patch/RFC - install global derived metrics dir and configs

[fche@xxxxxxxxxx (Frank Ch. Eigler)]

mgoodwin wrote:

> [...]  So I'm proposing to add the above putenv call to
> __pmEndOptions() so that global derived metrics will be loaded by
> default for all client tools (but not overriding $PCP_DERIVED_CONFIG
> if it's already set). This is a libpcp change, but not an API
> change. [...]

That will only affect those tools that opt into the *Options
machinery.  If the goal is to let apprx all tools take advantage of a
systemwide default library of derived metrics, why not do that directly?

For example, set a default PCP_DERIVED_CONFIG=/etc/pcp/derived.d/ via
pcp.conf or libpcp, and just do load it every time, the same way as
the recent changes did for the event.flags / event.missed anonymous
metrics?

- FChE