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Bug 1958362

Summary:	rbd_support: Attempting to background remove images with clones results in apparent stuck progress
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Greg Farnum <gfarnum>
Component:	RBD	Assignee:	Ilya Dryomov <idryomov>
Status:	CLOSED ERRATA	QA Contact:	Harish Munjulur <hmunjulu>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.2	CC:	ceph-eng-bugs, ceph-qe-bugs, idryomov, mmurthy, owasserm, tserlin, vereddy
Target Milestone:	---
Target Release:	4.2z2
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ceph-14.2.11-180.el8cp, ceph-14.2.11-180.el7cp	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-15 17:14:17 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 Greg Farnum 2021-05-07 17:57:42 UTC

Description of problem:
The progress module gets stuck on undeletable images. We should delay adding them to the progress module instead.

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

How reproducible:
Generate a clone of an rbd, move the rbd parent to trash, schedule deletion, watch progress module.

A fix is already in upstream nautilus and needs to be pulled in to our 4.x release stream.

Comment 1 RHEL Program Management 2021-05-07 17:57:50 UTC

Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.

Comment 6 Harish Munjulur 2021-06-10 17:54:29 UTC

QA verified. 

1. Create a pool and image 
2. write data to image
3. create multiple clones #rbd snap create testpool/testimage@snapname1
4. trash the parent image #rbd trash mv testpool/testimage
5. verify the trash # rbd trash ls testpool
                      ade224278f76 testimage
6. purge the trashed image #rbd trash purge testpool
Removing images: 0% complete...failed.
rbd: some expired images could not be removed
Ensure that they are closed/unmapped, do not have snapshots (including trashed snapshots with linked clones), are not in a group and were moved to the trash successfully.
7. check the ceph status #ceph -s
8. watch progress module
expected: Should not see any stuck process.

Comment 8 errata-xmlrpc 2021-06-15 17:14:17 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 (Important: Red Hat Ceph Storage 4.2 Security and Bug Fix Update), 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-2021:2445