Comment 1 for bug 1757407

(10:21:19 AM) mriedem: gibi: yeah so we could optimize to not even do that lookup if only using versioned notifications,
(10:21:40 AM) mriedem: also, efried said the glance endpoint / service catalog information should be cached in ksa, so we shouldn't be hitting the keystone API every time, only the first time,
(10:22:09 AM) mriedem: but it's curious that we could create a server (which would fetch the image on the compute) and then the periodic (without a token) would have problems stopping it
(10:22:32 AM) mriedem: unless you did something like had (1) cached images on the compute or (2) restarted nova-compute in between to invalidate the ksa cache
(10:22:51 AM) mriedem: unless the cache has a timer on it? or is somehow otherwise request-specific