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Bug 1624482

Summary:	RBD: Enable cinder exclusive pool by default
Product:	Red Hat OpenStack	Reporter:	Elise Gafford <egafford>
Component:	openstack-cinder	Assignee:	Elise Gafford <egafford>
Status:	CLOSED ERRATA	QA Contact:	Avi Avraham <aavraham>
Severity:	medium	Docs Contact:	Kim Nylander <knylande>
Priority:	medium
Version:	13.0 (Queens)	CC:	egafford, lmarsh, pgrist, srevivo, tshefi
Target Milestone:	z3	Keywords:	Triaged, ZStream
Target Release:	13.0 (Queens)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openstack-cinder-12.0.3-4.el7ost	Doc Type:	Bug Fix
Doc Text:	This backport adds the configuration option rbd_exclusive_cinder_pool, which defaults to True. This option improves statistics collection for large numbers of RBD volumes. This option should be set to False if your pool is not used exclusively by Cinder.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-11-13 22:13:36 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:

Description Elise Gafford 2018-08-31 18:37:38 UTC

rbd_exclusive_cinder_pool should be enabled by default.

The backport described in https://bugzilla.redhat.com/show_bug.cgi?id=1560068 was completed successfully. This backport adds a configuration option, rbd_exclusive_cinder_pool, which if enabled improves statistics collection for large numbers of RBD volumes. Ideally this flag would be set to the ideal default value (True) in TripleO. However, in the meantime, it is a superior customer experience for the majority of customers if this configuration option is set in the project defaults, as is already the case in RHOS 11 and RHOS 12.

Comment 3 Shelley Dunne 2018-10-12 15:34:15 UTC

Updating Target Milestone to z3 for all Modified medium bugs

Comment 9 Tzach Shefi 2018-11-05 11:33:32 UTC

FYI Some inconsistency with fixed-in puddle date. 
On my puddle 2018-10-30.1   > than the BuildID puddle 2018-10-22.4

I've still got a too early of a Cinder version
openstack-cinder-12.0.3-2.el7ost.noarch  < openstack-cinder-12.0.3-4.el7ost

Trying a newer puddle 2018-11-01.1

Comment 10 Tzach Shefi 2018-11-05 12:20:17 UTC

Hey Elise, 
Don't want this to slip by 13z3 release date.
Puddle 2018-11-01.1 still produces a premature 
openstack-cinder-12.0.3-2.el7ost.noarch  < fixed-in 12.0.3-4

Anything we can do to check this our, or just wait for newer puddle?
build ID: puddle=2018-10-22.4 is clearly wrong.

Comment 11 Tzach Shefi 2018-11-06 15:05:17 UTC

New puddle(2018-11-05.3) just landed, I'll redeploy and update once I have news.

Comment 12 Elise Gafford 2018-11-06 15:13:19 UTC

Thanks Tzach.

Comment 13 Tzach Shefi 2018-11-07 08:57:19 UTC

Verified on:
openstack-cinder-12.0.4-2.el7ost.noarch

On cinder.conf I confirm default vaule of true is set for this config option. 
 
grep rbd_exclusive_cinder_pool /var/lib/config-data/puppet-generated/cinder/etc/cinder/cinder.conf 
#rbd_exclusive_cinder_pool = true

Comment 17 errata-xmlrpc 2018-11-13 22:13:36 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, 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-2018:3601