Bug 1872459

Summary:	Bucket listing: raise default rgw_bucket_index_max_aio to 128
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Casey Bodley <cbodley>
Component:	RGW	Assignee:	Matt Benjamin (redhat) <mbenjamin>
Status:	CLOSED ERRATA	QA Contact:	Tejas <tchandra>
Severity:	medium	Docs Contact:
Priority:	high
Version:	4.1	CC:	cbodley, ceph-eng-bugs, kbader, mbenjamin, mkasturi, rmandyam, sweil, tserlin, vereddy
Target Milestone:	---	Keywords:	Improvement, Performance
Target Release:	4.2
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ceph-14.2.11-43.el8cp, ceph-14.2.11-43.el7cp	Doc Type:	Enhancement
Doc Text:	.Ceph Object Gateway’s default shard requests on bucket index, `rgw_bucket_index_max_aio`, increased to 128 Previously, outstanding shard requests on a bucket index was limited to 8 causing slow performance with listing buckets. With this release, the default number of shard requests on a bucket index, `rgw_bucket_index_max_aio`, has been increased from 8 to 128, thereby improving the bucket listing performance.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-01-12 14:56:50 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1890121

Description Casey Bodley 2020-08-25 19:31:45 UTC

Description of problem:

The maximum of 8 outstanding shard requests on a bucket index is an unnecessary bottleneck, especially for bucket listing which already has issues scaling to larger shard counts. the Objecter's inflight ops throttle is already preventing us from flooding the osds with requests

Comment 1 RHEL Program Management 2020-08-25 19:31:52 UTC

Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.

Comment 9 errata-xmlrpc 2021-01-12 14:56:50 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 4.2 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-2021:0081