Re: Add Install/Remove Command Line Switches

On 20/02/17 22:13, Marko Myllynen wrote:
> Hi,
>
> What do you think about this patch? Every now and then someone asks for
> command line switches to select the proper mode (*) for PMDAs, let's
> add them so that people won't need spend time discovering "echo c |
> ./Install" :) Also add standard --help/--version switches while at it.
>
> *) While the patch allows defining the proper mode for a PMDA, reading
> the man pages, the Programmer's Guide, and the code in pmdaproc.sh
> leaves me still unclear what/how this PMDA monitor mode is supposed to
> be / work. PCPIntro(1) and others describe monitors being tools like
> pmlogger, pmrep, pmval, etc. but don't explain how a PMDA could work in
> such mode. Clarifications on man pages would be much appreciated.

monitor mode comes from a time before the "distributed PMNS" when you 
needed to install a local PMNS to make metrics available for clients 
(aka monitors).  For a long time now, the PMNS has been delivered via 
pmcd or archives, so I cannot think of a reason why anyone would need or 
want to choose "monitor" mode.

Since there are only a handful of people on the planet that remember 
these early days of PCP, I think we could safely drop the whole thing 
... this would cut some code out of pmdaproc.sh, remove the confusion 
and trigger a massive QA re-base (almost 100 tests would need to be 
reviewed and some changed and all the .out files remade), but that would 
be a once-off effort.


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