Bug 2006912 - Notify timeout can induce a race condition as it attempts to resend the cache update
Summary: Notify timeout can induce a race condition as it attempts to resend the cache...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RGW
Version: 4.3
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
: 4.3
Assignee: Adam C. Emerson
QA Contact: Vidushi Mishra
URL:
Whiteboard:
Depends On:
Blocks: 2006949
TreeView+ depends on / blocked
 
Reported: 2021-09-22 16:38 UTC by Adam C. Emerson
Modified: 2022-05-05 07:54 UTC (History)
8 users (show)

Fixed In Version: ceph-14.2.22-5.el8cp, ceph-14.2.22-5.el7cp
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2006949 (view as bug list)
Environment:
Last Closed: 2022-05-05 07:54:05 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHCEPH-1863 0 None None None 2021-09-22 16:41:39 UTC
Red Hat Product Errata RHSA-2022:1716 0 None None None 2022-05-05 07:54:26 UTC

Description Adam C. Emerson 2021-09-22 16:38:55 UTC 
Description of problem:

On a heavily loaded cluster, the Notify operation can fail. Currently we retry sending the update, but this can lead to an A-B-A error.

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

4.3

How reproducible:

Nondeterministically

Steps to Reproduce:
1. Get a cluster with multiple RGWs per zone
2. Load it up heavily
3. Do some work on it

Actual results:

Cache consistency is maintained

Expected results:

Cache consistency is not maintained

Additional info:

This BZ added so a cherry-pick has something to resolve.
Comment 15 errata-xmlrpc 2022-05-05 07:54:05 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 (Moderate: Red Hat Ceph Storage 4.3 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-2022:1716
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