Bug 2107406 - [RHCS 6] pacific doesn't defer small writes for pre-pacific hdd osds
Summary: [RHCS 6] 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: ---
: 6.0
Assignee: Adam Kupczyk
QA Contact: skanta
URL:
Whiteboard:
Depends On:
Blocks: 2107407 2126050
TreeView+ depends on / blocked
 
Reported: 2022-07-14 22:53 UTC by Vikhyat Umrao
Modified: 2023-03-20 18:57 UTC (History)
18 users (show)

Fixed In Version: ceph-17.2.5-23.el9cp
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:
: 2107407 (view as bug list)
Environment:
Last Closed: 2023-03-20 18:57:08 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 22:53:57 UTC
Red Hat Issue Tracker RHCEPH-4770 0 None None None 2022-07-14 23:04:23 UTC
Red Hat Product Errata RHBA-2023:1360 0 None None None 2023-03-20 18:57:48 UTC

Description Vikhyat Umrao 2022-07-14 22:53:58 UTC 
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 26 errata-xmlrpc 2023-03-20 18:57:08 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 6.0 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-2023:1360
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