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Bug 1448084

Summary:	[rbd-mirror] : manually removing a replicated image might result in an empty image
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Jason Dillaman <jdillama>
Component:	RBD	Assignee:	Jason Dillaman <jdillama>
Status:	CLOSED ERRATA	QA Contact:	Tejas <tchandra>
Severity:	medium	Docs Contact:	Aron Gunn <agunn>
Priority:	low
Version:	2.3	CC:	agunn, ceph-eng-bugs, ceph-qe-bugs, tchandra, uboppana
Target Milestone:	z1
Target Release:	2.5
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ceph-10.2.10.el7cp	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-07-26 18:06:41 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jason Dillaman 2017-05-04 13:43:42 UTC

Description of problem:
After a forced-failover event from site A to site B, if you delete the image on site A (while it's still primary) via "rbd rm <image-spec>", rbd-mirror will correctly detect that it should replicate the image from site B back to site A. Unfortunately, it skips the actual image sync step and just creates an empty image.

Restarting the rbd-mirror daemon on site A or requesting a manual resync will correct the issue.

Version-Release number of selected component (if applicable):
10.2.x

How reproducible:
100%

Steps to Reproduce:
1. rbd --cluster siteB mirror image promote --force <image-spec>
2. rbd --cluster siteA rm <image-spec>

Actual results:
A blank (zeroed) image will be re-created on siteA

Expected results:
A properly synchronized image will be re-created on siteA

Comment 2 Jason Dillaman 2017-05-04 13:44:56 UTC

Associated master branch PR: https://github.com/ceph/ceph/pull/14945

Comment 3 Jason Dillaman 2018-06-08 20:37:06 UTC

Fix was included under rebase to 10.2.10

Comment 8 errata-xmlrpc 2018-07-26 18:06:41 UTC

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.

https://access.redhat.com/errata/RHSA-2018:2261