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Bug #3780

closed

pg_num inappropriately low on new pools

Added by Ian Colle over 11 years ago. Updated over 10 years ago.

Status:
Won't Fix
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
Community (user)
Tags:
Backport:
Regression:
Severity:
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Version: 0.48.2-0ubuntu2~cloud0

On a Ceph cluster with 18 OSDs, new object pools are being created with a pg_num of 8. Upstream recommends that there be more like 100 or so PGs per OSD: http://article.gmane.org/gmane.comp.file-systems.ceph.devel/10242

I've worked around this by removing and recreating the pools with a higher pg_num before we started using the cluster, but since we aim for fully automated deployment (using Juju and MaaS) this is suboptimal.

https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1098314


Related issues 1 (0 open1 closed)

Related to Ceph - Feature #2519: rados: allow setting pg_num and pgp_num when creating a poolResolved06/05/2012

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Actions #1

Updated by Sage Weil over 10 years ago

  • Status changed from New to Won't Fix
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