** Changed in: glance
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1528453
Title:
Provide a ranking mechanism for glance-api to order locations
Status in Glance:
Fix Released
Bug description:
We have a setup consisting of multiple cells with their own glance-api
servers. We have a global swift store that holds all the images, and
we are exploring having local stores to increase efficiency. This can
be done using image-locations in glance. (Thanks!)
However, currently it is not possible for each cell to specify their
custom ordering of image locations. The store_type location strategy
does not work because more than one cell can have the same type of
backend.
If this is made possible, each cell can return the closest location
for each glance image, and also do copy-on-write for local stores like
RBD. This can be achieved by having another location_strategy that
orders based on a ranking key in metadata.
Opening a bug but I'll like this classified as a wishlist. Comments
and suggestions are welcome!
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