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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-templatesAssignee: 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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3.

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