Bug 2107407 - [RHCS 5.3] pacific doesn't defer small writes for pre-pacific hdd osds
Summary: [RHCS 5.3] pacific doesn't defer small writes for pre-pacific hdd osds
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RADOS
Version: 5.2
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
: 5.3z1
Assignee: Adam Kupczyk
QA Contact: Harsh Kumar
URL:
Whiteboard:
Depends On: 2107406
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-07-14 22:55 UTC by Vikhyat Umrao
Modified: 2023-09-18 04:41 UTC (History)
21 users (show)

Fixed In Version: ceph-16.2.10-120.el8cp
Doc Type: Bug Fix
Doc Text:
.The small writes are deferred Previously, Ceph would defer writes while allocating units. When the allocation unit was large, like 64 K, no small write was eligible for deferring. With this update, the small writes are deferred as they operate on disk blocks even when large allocation units are deferring.
Clone Of: 2107406
Environment:
Last Closed: 2023-02-28 10:05:14 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 56488 0 None None None 2022-07-14 22:55:46 UTC
Red Hat Issue Tracker RHCEPH-4769 0 None None None 2022-07-14 23:04:16 UTC
Red Hat Product Errata RHSA-2023:0980 0 None None None 2023-02-28 10:06:04 UTC

Description Vikhyat Umrao 2022-07-14 22:55:46 UTC 
+++ This bug was initially created as a clone of Bug #2107406 +++

Description of problem:

pacific doesn't defer small writes for pre-pacific hdd osds

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

Upstream pacific / Downstream RHCS 5.1 and above
Upstream quincy / Downstream RHCS 6.0


Upstream trackers:

https://tracker.ceph.com/issues/56488
https://lists.ceph.io/hyperkitty/list/dev@ceph.io/thread/6YRLAUDKC2QVIC3LIAGL4ZAOIRTQTVMR/
Comment 19 Scott Ostapovicz 2023-02-06 17:06:49 UTC 
 Missed the 5.3 z1 window.  Moving to 6.1.  Adam, if you decide you can cherry pick this to the 5.3 z1 branch by Feb 8th, then go ahead and retarget this to 5.3 z1.
Comment 27 Harsh Kumar 2023-02-21 16:09:02 UTC 
Moving this to verified state as the behavior observed is as per expectation. [Confirmed from Adam]
Comment 29 errata-xmlrpc 2023-02-28 10:05:14 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 5.3 Bug fix and security 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-2023:0980
Comment 30 Red Hat Bugzilla 2023-09-18 04:41:59 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days
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