Cinder's new attachment api and multiattach support
Currently while creating multiple instance/volume from an image in glance cinder configuration, a volume is attached to glance host to copy image from and after the copy finishes it is detached. The subsequent request to create instance from same image attaches the volume again to copy the data and can't attach the volume until the first request completes/detaches it.
This sometimes also causes failures when concurrent request arrives and the volume attachment fails.
Glance cinder store has issues when concurrent requests are received for creating image and the current solution proposed is to use multiattach volumes to handle it.
Cinder introduced the new attachment API in microversion 3.27 which is essential to be used to use multiattach volumes.
Blueprint information
- Status:
- Not started
- Approver:
- None
- Priority:
- Undefined
- Drafter:
- Rajat Dhasmana
- Direction:
- Needs approval
- Assignee:
- Rajat Dhasmana
- Definition:
- New
- Series goal:
- None
- Implementation:
-
Unknown
- Milestone target:
- None
- Started by
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
Spec:
Addressed by: https:/
Cinder's new Attachment API support:
Addressed by: https:/
Multiattach volume handling support:
Addressed by: https:/
