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Bug #22424
closedbalancer should warn about missing requirements
Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
balancer module
Target version:
-
% Done:
0%
Source:
Community (user)
Tags:
Backport:
luminous
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
When the 12.2.2 balancer module is enabled, it can easily fail without clearly indicating why. After some debugging I discovered that
crush-compat mode requires:
ceph osd set-require-min-compat-client hammer
ceph osd crush set-all-straw-buckets-to-straw2
upmap mode requires:
ceph osd set-require-min-compat-client luminous
Could we document this clearly? or better would be to warn about this before allowing the balancer to be enabled.
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