Le 07/12/2016 04:21, Zhenyu Zheng a écrit : > Hi all, > > I want to ask a question about using scheduler-hints, could we add > custom scheduler keys to work with our custom filters? Is it designed to > allow vendors add own custom filters and keys? >
I tend to disagree with that approach from an interoperability perspective as two clouds could behave very differently. That said, there is a long-standing problem about scheduler hints being extensible with regards to our API input validation [1] and we basically agreed on allowing to relax the constraints [2]. Long story short, you *can* technically do that for a custom filter but please take care of the communication you make around that new hint to your customers and make it clear that this hint is not interoperable. Also, I beg you to make sure that the hint name is self-explanatory and enough distinct from the other hints we already have so that a confusion could be minimal. > Another question is, as we have now persistent scheduler-hints in > request spec, is it possible to show the scheduler-hints either in > server-show or a new API? Because vendors may be interested to have an > idea on how this instance was built in the first place. > Well, I'd say it would be an admin or owner information, but yeah that could be worth to be exposed. AFAIK, there is no current way to get that so a blueprint with a spec describing the problem and the proposal (including an API microversion) could be interesting to review. -Sylvain [1] http://lists.openstack.org/pipermail/openstack-dev/2015-June/067996.html [2] https://github.com/openstack/nova/blob/5cc5a841109b082395d9664edcfc11e31fb678fa/nova/api/openstack/compute/schemas/scheduler_hints.py#L67-L71 > Thanks. > > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
