Bug 1489121 – Ceph pg_num and pgp_num default is too low for any user

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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

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-tripleo-heat-templates (Show other bugs)
Sub Component:
Version:	12.0 (Pike)
Hardware:	x86_64 Linux

Priority	high Severity high
Target Milestone:	beta
Target Release:	12.0 (Pike)
Assigned To:	Giulio Fidente
QA Contact:	Yogev Rabl
Docs Contact:

URL:
Whiteboard:
Keywords:	Triaged

Depends On:	1481821
Blocks:	1489120
	Show dependency tree / graph

Reported:	2017-09-06 14:00 EDT by jomurphy
Modified:	2018-02-05 14:12 EST (History)
CC List:	9 users (show)

See Also:
Fixed In Version:	openstack-tripleo-heat-templates-7.0.3-0.20171023134947.8da5e1f.el7ost
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:	1481821
Environment:
Last Closed:	2017-12-13 17:05:43 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Launchpad	1718173	None	None	None	2017-09-19 07:08 EDT
Launchpad	1718756	None	None	None	2017-09-21 15:13 EDT
OpenStack gerrit	505153	None	None	None	2017-09-19 07:07 EDT
OpenStack gerrit	506330	None	None	None	2017-09-21 15:20 EDT
Red Hat Product Errata	RHEA-2017:3462	normal	SHIPPED_LIVE	Red Hat OpenStack Platform 12.0 Enhancement Advisory	2018-02-15 20:43:25 EST

Groups: None (edit)

Description jomurphy 2017-09-06 14:00:38 EDT

+++ 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:
100%

Steps to Reproduce:
1.
2.
3.

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 10:30:40 EST

The defaults placement groups number is 128

Comment 6 errata-xmlrpc 2017-12-13 17:05:43 EST

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/RHEA-2017:3462

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