Bug 2224243 - mds: cap revoke and cap update's seqs mismatched
Summary: mds: cap revoke and cap update's seqs mismatched
Keywords:
Status: VERIFIED
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: CephFS
Version: 5.3
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
: 6.1z2
Assignee: Xiubo Li
QA Contact: Hemanth Kumar
Akash Raj
URL:
Whiteboard:
Depends On:
Blocks: 2235257
TreeView+ depends on / blocked
 
Reported: 2023-07-20 09:05 UTC by Xiubo Li
Modified: 2023-09-15 08:21 UTC (History)
6 users (show)

Fixed In Version: ceph-17.2.6-127.el9cp
Doc Type: Bug Fix
Doc Text:
.Revocation requests no longer get stuck Previously, before the revoke request was sent out, which would increase the 'seq', if the clients released the corresponding caps and sent out the cap update request with the old `seq`, the MDS would miss checking the `seq`(s) and cap calculation. Due to this, the revocation requests would be stuck infinitely and would throw warnings about the revocation requests not responding from clients. With this fix, an acknowledgement is always sent for revocation requests and they no longer get stuck.
Clone Of: 2224242
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 61782 0 None None None 2023-07-20 09:08:35 UTC
Red Hat Issue Tracker RHCEPH-7050 0 None None None 2023-07-20 09:05:49 UTC

Description Xiubo Li 2023-07-20 09:05:03 UTC 
+++ This bug was initially created as a clone of Bug #2224242 +++

If just before the revoke request, which will increase the 'seq', is
sent out the clients released the corresponding caps and sent out
the cap update request with old 'seq', the mds will miss checking
the seqs and calculating the caps.

We should always send an ack for revoke requests.

Fixes: https://tracker.ceph.com/issues/61782

--- Additional comment from RHEL Program Management on 2023-07-20 09:04:27 UTC ---

Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
Comment 1 RHEL Program Management 2023-07-20 09:05:18 UTC 
Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
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