Bug 2247174

Summary:	userspace cephfs client can crash when upgrading from RHCS 6 to 7
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Venky Shankar <vshankar>
Component:	CephFS	Assignee:	Venky Shankar <vshankar>
Status:	CLOSED ERRATA	QA Contact:	sumr
Severity:	urgent	Docs Contact:	Rivka Pollack <rpollack>
Priority:	unspecified
Version:	6.1	CC:	akraj, ceph-eng-bugs, cephqe-warriors, hyelloji, ngangadh, sumr, tserlin, vereddy
Target Milestone:	---
Target Release:	7.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	ceph-18.2.0-110.el9cp	Doc Type:	Bug Fix
Doc Text:	.User-space Ceph File System (CephFS) work as expected post upgrade Previously, the user-space CephFS client would sometimes crash during a cluster upgrade. This would occur due to stale feature bits on the MDS side that were held on the user-space side. With this fix, ensure that the user-space CephFS client has updated MDS feature bits thta allows the clients to work as expected after a cluster upgrade.	Story Points:	---
Clone Of:
Clones:	2249814 (view as bug list)		Environment:
Last Closed:	2023-12-13 15:24:38 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:
Bug Depends On:
Bug Blocks:	2249814

Description Venky Shankar 2023-10-31 05:31:15 UTC

Description of problem:

Details here: https://tracker.ceph.com/issues/63188


How reproducible:

Very likely.

Steps to Reproduce:
1. Start with RHCS 5 client and MDS

2. Upgrade the (userspace) client to RHCS 7 (say, ceph-mgr)

3. Continue using the client

4. Upgrade the MDS (one active MDS should suffice)

5. The userspace client (ceph-mgr in this case) should crash.

Comment 17 Venky Shankar 2023-11-28 10:08:26 UTC

Doc text update. PTAL.

Comment 18 errata-xmlrpc 2023-12-13 15:24:38 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 (Red Hat Ceph Storage 7.0 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/RHBA-2023:7780

Comment 19 Red Hat Bugzilla 2024-05-31 04:25:02 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days