Bug 2247174 - userspace cephfs client can crash when upgrading from RHCS 6 to 7
Summary: userspace cephfs client can crash when upgrading from RHCS 6 to 7
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: CephFS
Version: 6.1
Hardware: x86_64
OS: Linux
unspecified
urgent
Target Milestone: ---
: 7.0
Assignee: Venky Shankar
QA Contact: sumr
Rivka Pollack
URL:
Whiteboard:
Depends On:
Blocks: 2249814
TreeView+ depends on / blocked
 
Reported: 2023-10-31 05:31 UTC by Venky Shankar
Modified: 2024-05-31 04:25 UTC (History)
8 users (show)

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.
Clone Of:
: 2249814 (view as bug list)
Environment:
Last Closed: 2023-12-13 15:24:38 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 63188 0 None None None 2023-10-31 05:31:14 UTC
Github ceph ceph pull 54146 0 None Merged reef: client: always refresh mds feature bits on session open 2023-10-31 05:31:14 UTC
Red Hat Issue Tracker RHCEPH-7824 0 None None None 2023-10-31 05:33:44 UTC
Red Hat Product Errata RHBA-2023:7780 0 None None None 2023-12-13 15:24:46 UTC

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
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