Bug 973149 – for snapshot based volumes, size should be enforced to be at least on par with the snapshot size

Bug 973149 - for snapshot based volumes, size should be enforced to be at least on par with the snapshot size

Summary:	for snapshot based volumes, size should be enforced to be at least on par wit...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-cinder (Show other bugs)
Sub Component:
Version:	4.0
Hardware:	Unspecified Unspecified

Priority	low Severity low
Target Milestone:	Upstream M1
Target Release:	4.0
Assigned To:	Eric Harney
QA Contact:	Yogev Rabl
Docs Contact:

URL:
Whiteboard:
Keywords:	TestOnly

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2013-06-11 07:28 EDT by Giulio Fidente
Modified:	2016-04-26 20:35 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	openstack-cinder-2013.2-0.4.b2.el6ost
Doc Type:	Bug Fix
Doc Text:	Previously, the Block Storage service incorrectly allowed users to attempt cloning a snapshot into a smaller volume. The attempt only failed when the volume filled up as expected during the volume creation process. With this fix, the Block Storage service will now check the volume size argument whenever users attempt to clone a snapshot. As a result, the Block Storage service will automatically fail any attempts to clone a snapshot into a smaller volume before even initiating the clone.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-12-19 19:05:27 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Launchpad	1161841	None	None	None	Never
Launchpad	1189779	None	None	None	Never
OpenStack gerrit	25783	None	None	None	Never
Red Hat Product Errata	RHEA-2013:1859	normal	SHIPPED_LIVE	Red Hat Enterprise Linux OpenStack Platform Enhancement Advisory	2013-12-20 19:01:48 EST

Groups: None (edit)

Description Giulio Fidente 2013-06-11 07:28:27 EDT

Description of problem:
when creating a snapshot based volume, it is currently permitted to pass as size argument a value smaller than the actual snapshot size

the volume creation terminates with an error as soon as the backing volume is filled

the API could get smarter and enforce the user to use as size a value greater or identical to the snapshot size


Version-Release number of selected component (if applicable):
openstack-cinder-2013.1.1-4.el6ost.noarch


Steps to Reproduce:
1. create a 2g volume (vol1)
2. create a snap of vol1 (snap1)
3. create a 1g volume from snap1 (vol2)


Actual results:
creation starts and reports failure when the backing LV is full


Expected results:
API returns error and doesn't initiate the operation

Comment 1 Eric Harney 2013-06-11 08:23:04 EDT

It's not clear to me that this is severe enough to be worth backporting.

Comment 5 Giulio Fidente 2013-10-10 11:06:43 EDT

verified using openstack-cinder-2013.2-0.9.b3.el6ost

Comment 8 errata-xmlrpc 2013-12-19 19:05:27 EST

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHEA-2013-1859.html

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