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Feature #12274

mds: start forward scrubs from all subtree roots, skip non-auth metadata

Added by John Spray over 3 years ago. Updated 8 months ago.

Status:
In Progress
Priority:
Normal
Category:
fsck/damage handling
Target version:
Start date:
02/14/2013
Due date:
% Done:

100%

Source:
Development
Tags:
scrub
Backport:
mimic
Reviewed:
Affected Versions:
Component(FS):
MDS
Labels (FS):
Pull request ID:

Description

This is the basic principle that allows scrubs across multiple MDSs: everyone takes responsibility for their own subtrees, and stops at subtree boundaries.

Modify scrub initiating commands such that instead of the input path causing us to acting on the named dentry, they act on any subtrees within the path specified. So if I had a subtree situation like this:
MDS A: /foo /foo/bar/baz
MDS B: /foo/bar

Then a scrub initiated on MDS A for path "/foo" would find both subtrees and start scrubs from the root of both, rather than just from the /foo subtree.


Subtasks

Feature #4142: MDS: forward scrub: Implement cross-MDS scrubbingDuplicate

History

#1 Updated by Greg Farnum over 2 years ago

  • Category changed from fsck/damage handling to multi-MDS
  • Component(FS) MDS added

#2 Updated by Douglas Fuller over 2 years ago

  • Status changed from New to In Progress
  • Assignee set to Douglas Fuller

#3 Updated by Douglas Fuller over 2 years ago

  • Status changed from In Progress to Need Review

#4 Updated by John Spray about 2 years ago

  • Target version set to v12.0.0

Using this ticket to track the task of implementing cross-MDS forward scrub (i.e. handing off at subtree bounds)

#5 Updated by Patrick Donnelly 8 months ago

  • Subject changed from Start forward scrubs from all subtree roots, skip non-auth metadata to mds: start forward scrubs from all subtree roots, skip non-auth metadata
  • Category changed from multi-MDS to fsck/damage handling
  • Status changed from Need Review to In Progress
  • Target version changed from v12.0.0 to v14.0.0
  • Source changed from other to Development
  • Tags set to scrub
  • Backport set to mimic

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