Bug 1041168

Summary: [RFE][nova]: Avoid copying images for booth
Product: Red Hat OpenStack Reporter: RHOS Integration <rhos-integ>
Component: RFEsAssignee: RHOS Maint <rhos-maint>
Status: CLOSED UPSTREAM QA Contact: Ami Jeain <ajeain>
Severity: unspecified Docs Contact:
Priority: medium    
Version: unspecifiedCC: markmc, ndipanov, sgordon, yeylon
Target Milestone: ---Keywords: FutureFeature, Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
URL: https://blueprints.launchpad.net/nova/+spec/nova-image-zero-copy
Whiteboard: upstream_milestone_none upstream_status_unknown upstream_definition_review
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-19 17:21:52 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description RHOS Integration 2013-12-12 13:50:34 UTC 
Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/nova-image-zero-copy.

Description:

This blueprint aims to add zero-copy support for images. The idea is to take advantage of the following existing features:

1. Nova's image cache
2. Glance image's direct_url

The idea is to use the direct_url value from images to delay the image download as much as possible and without passing through Glance's API service. Once the image has been downloaded, it'll be cached by the hypervisor's imagecache (if implemented).




Specification URL (additional information):

https://etherpad.openstack.org/p/nova-glance-zero-copy