Comment 2 for bug 1886374

Reviewed: https://review.opendev.org/739423
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=ab0e5268a9c2614572659d763b3c0b6fc36dd0cf
Submitter: Zuul
Branch: master

commit ab0e5268a9c2614572659d763b3c0b6fc36dd0cf
Author: Abhishek Kekane <email address hidden>
Date: Mon Jul 6 07:49:31 2020 +0000

    Improve lazy loading mechanism for multiple stores

    Glance has a facility lazy loading for legacy images which will be called
    on get/list api calls to add store information in image's location metadata
    based on location URL of image. Even if admin decides to change the store
    names in glance-api.conf same will also be updated in location metadata
    for all images related to that particular store. Current implementation of
    legacy image performs this operation on each get/list call as location metadata
    is not getting updated in database or it doesn't handle to perform store name
    check in glance-api.conf.

    Improvements done:
    1. Save updated location metadata information in database permenantly
    2. Add logic to perform lazy loading only if store information is not present
    in location metadata or store present in location metadata is not defined in
    glance's enbaled_backends configuration option.

    Change-Id: I789fa7adfb459e7861c90a51f418a635c0c22244
    Closes-Bug: #1886374