Bug 1489121 - Ceph pg_num and pgp_num default is too low for any user
Summary: Ceph pg_num and pgp_num default is too low for any user
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-tripleo-heat-templates
Version: 12.0 (Pike)
Hardware: x86_64
OS: Linux
Target Milestone: beta
: 12.0 (Pike)
Assignee: Giulio Fidente
QA Contact: Yogev Rabl
Depends On: 1481821
Blocks: 1489120
TreeView+ depends on / blocked
Reported: 2017-09-06 18:00 UTC by jomurphy
Modified: 2018-02-05 19:12 UTC (History)
9 users (show)

Fixed In Version: openstack-tripleo-heat-templates-7.0.3-0.20171023134947.8da5e1f.el7ost
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1481821
Last Closed: 2017-12-13 22:05:43 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Launchpad 1718173 0 None None None 2017-09-19 11:08:40 UTC
Launchpad 1718756 0 None None None 2017-09-21 19:13:46 UTC
OpenStack gerrit 505153 0 None None None 2017-09-19 11:07:02 UTC
OpenStack gerrit 506330 0 None None None 2017-09-21 19:20:38 UTC
Red Hat Product Errata RHEA-2017:3462 0 normal SHIPPED_LIVE Red Hat OpenStack Platform 12.0 Enhancement Advisory 2018-02-16 01:43:25 UTC

Description jomurphy 2017-09-06 18:00:38 UTC
+++ This bug was initially created as a clone of Bug #1481821 +++

Description of problem:
OSP director defaults set Ceph's pg_num and pgp_num to 32 which is too low. This will cause performance issues for any costumer that will use it.

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

How reproducible:

Steps to Reproduce:

Actual results:
The pg_num and pgp_num for all the pools is 32

Expected results:
pg_num and pgp_num default should be 128, which is the right number for the minimum deployment of 3 OSDs in a cluster

Additional info:

--- Additional comment from Jeff Brown on 2017-08-29 14:11:34 EDT ---

We need to set this to 128 by default. It will potentially overwritten by derived parameters or customers that  read the documentation.

Comment 3 Yogev Rabl 2017-11-06 15:30:40 UTC
The defaults placement groups number is 128

Comment 6 errata-xmlrpc 2017-12-13 22:05:43 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.


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