Bug 1497624

Summary:	OSP director sets Ceph's pool min_size to 1 by default
Product:	Red Hat OpenStack	Reporter:	Giulio Fidente <gfidente>
Component:	openstack-tripleo-heat-templates	Assignee:	Giulio Fidente <gfidente>
Status:	CLOSED ERRATA	QA Contact:	Yogev Rabl <yrabl>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	11.0 (Ocata)	CC:	acanan, dbecker, dcadzow, gfidente, jefbrown, jomurphy, mburns, mlopes, morazi, nlevine, rhel-osp-director-maint, yrabl
Target Milestone:	---	Keywords:	Triaged, ZStream
Target Release:	11.0 (Ocata)
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	openstack-tripleo-heat-templates-6.2.1-2.el7ost	Doc Type:	Enhancement
Doc Text:	This enhancement allows the Ceph cluster to determine the pool's minimum replica size, by reference to the desired replica size. The director will no longer enforce a minimum replica size of 1 for the Ceph pools; you can instead configure a desired replica size using the `CephPoolDefaultSize` parameter (defaulted to `3`), based upon which the Ceph cluster will identify the optimal minimum replica size. This was changed because enforcing a minimum replica size of 1 is dangerous, as it allows for writes in the Ceph pools when only one copy of the data is available. As a result, the minimum replica size for the Ceph pools is determined by the Ceph cluster, based on the desired replica size of each pool.	Story Points:	---
Clone Of:	1481826	Environment:
Last Closed:	2018-02-13 16:31:58 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:	1481826

Description Giulio Fidente 2017-10-02 08:38:29 UTC

+++ This bug was initially created as a clone of Bug #1481826 +++

Description of problem:
OSP director sets Ceph's pools minimum size to 1 when it should be 3. 
This issue will be resolved in OSP 12, but the default should change in OSP 10.

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


How reproducible:
100%

Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info:

Comment 3 Yogev Rabl 2018-02-06 13:40:03 UTC

verified

Comment 6 errata-xmlrpc 2018-02-13 16:31:58 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/RHBA-2018:0310