Re: [pcp] pmcd restart race condition

["Frank Ch. Eigler" <fche@xxxxxxxxxx>]

Hi, Ken -


> [...]  Rather than a packaging post-op which has to be redone for
> each of the 3 or more packaging modes we support, I think it would
> be preferable to have pmda_setup _not_ run in the background [...]

That backgrounding was probably done to hide the latency of first-time
pmcd startup doing all the pmda Installs.


> [...]  we'll need a global marker in the filesystem (or possibly
> better, in the environment) to indicate that a pmda_setup is
> running.

Yes, as long as that is preserved throughout the process, sounds good.
... and then actually:

-           _pmda_setup &
+           PMDA_SETUP_RUNNING=yes _pmda_setup

might not even need to take away the "&", as the environment variable 
should preclude reentrancy to this part.

- FChE