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Feature #7515

mon: 'osd crush reweight-subtree <name> <weight>'

Added by Sage Weil about 9 years ago. Updated over 8 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
-
Target version:
0.83
% Done:

0%

Source:
Community (user)
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:

Description

The 'osd crush reweight ...' command only lets you reweight a single item. In a large cluster, it may be helpful to slowly bring an entire host, rack, or DC online, and adjusting the crush weights across many devices is tedious and error-prone.

This would let you specify a subtree node (like a host or rack) and would set the weight for every leaf item contained beneath that point.

This came up during an in-depth architecture discussion for a very large scale deployment.

History

#1 Updated by Sage Weil about 9 years ago

  • Description updated (diff)
  • Source changed from other to Community (user)

#2 Updated by Sage Weil almost 9 years ago

  • Target version set to 0.83

#3 Updated by Sage Weil almost 9 years ago

  • Subject changed from mon: 'osd crush reweight-recursive <name> <weight>' to mon: 'osd crush reweight-subtree <name> <weight>'

#4 Updated by Sage Weil almost 9 years ago

  • Status changed from New to Fix Under Review

#5 Updated by Sage Weil over 8 years ago

  • Status changed from Fix Under Review to Resolved

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