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Bug 1694551 - [RFE] Support multiple stores of Glance for snapshot and backup API
Summary: [RFE] Support multiple stores of Glance for snapshot and backup API
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 16.0 (T)
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: ---
Assignee: Abhishek Kekane
QA Contact: nova-maint
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-04-01 05:16 UTC by Abhishek Kekane
Modified: 2019-04-04 14:59 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2019-04-04 14:59:48 UTC
Target Upstream Version:


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Description Abhishek Kekane 2019-04-01 05:16:42 UTC
Description of problem:

Recently in Rocky, Glance has added multiple backend as a EXPERIMENTAL feature. This way opearator can configure more than one of similar or different kind of backends and use one as a default backend. If backend is not specified at the time of uploading the image then the image will be stored in default backend.

In case of nova snapshot if multiple backend is configured then the snapshot image will be uploaded to default backend. This will not cause any issue unless nova is using ceph backend and glance has ceph backend as well but default backend is not ceph. This will affect nova's ability to use ceph backend for uploading snapshots in more efficient way. Same will be applicable to backup API.

Comment 1 Abhishek Kekane 2019-04-01 05:17:44 UTC
Upstream Blueprint: https://blueprints.launchpad.net/nova/+spec/support-glance-multiple-backend

Upstream Nova specs: https://review.openstack.org/#/c/641210/


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