[ClusterLabs] standby and unstandby commands

Jan Pokorný jpokorny at redhat.com
Fri Dec 2 02:47:18 EST 2016

On 29/11/16 08:24 +0100, Ulrich Windl wrote:
> Some servers first fork and exit, virtually being successful
> immediately, while the child (the "server loop") could die a moment
> later. Finding the perfect time to wait for the server dying is kind
> of black magic ;-)

That's exactly why I thing that's one of the aspects systemd moved
service startup design a step forward with its "notify" type of service
-- only the daemon author is fully capable/educated to narrow down
the exact point in the daemon's life cycle where it's supposed to
be "fully up, ready to service", marking that place with sd_notify(3)
call.  Everything else is just a heuristic, sometimes unreliable.

Jan (Poki)
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