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Bug #11500

closed

Crush map cannot handle OSD weights smaller than 0.01

Added by Peter Matulis almost 9 years ago. Updated almost 9 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
Community (user)
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

The crush map cannot handle OSD weights smaller than 0.01 . This corresponds to usable (not including journal) space of 10 GB. Anyone using a block device with capacity less than ~15 GB will have a broken OSD (assuming journal is ~ 5 GB).

The workaround is to manually set the weight:

ceph osd crush reweight osd.<id> <weight>

Until this is fixed the documentation should at least mention it here:

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 #1

Updated by Sage Weil almost 9 years ago

  • Status changed from New to Fix Under Review
  • Source changed from other to Community (user)
  • Regression set to No
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 #2

Updated by Sage Weil almost 9 years ago

  • Status changed from Fix Under Review to Resolved
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