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Bug #40159

mds: openfiletable prefetching large amounts of inodes lead to mds start failure

Added by Xuehan Xu 5 months ago. Updated 5 months ago.

Status:
Need Review
Priority:
Normal
Assignee:
Category:
Performance/Resource Usage
Target version:
Start date:
Due date:
% Done:

0%

Source:
Community (dev)
Tags:
Backport:
nautilus,mimic
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
MDS
Labels (FS):
Pull request ID:
Crash signature:

Description

Recently, we found that both mdses of one of our cluster can't boot to up:active

After debugging, we believe this is due to openfiletable's prefetch phase is forced to load large amounts of "opened" inodes even if their caps are dropped by clients when reconnecting.

History

#1 Updated by Patrick Donnelly 5 months ago

  • Status changed from New to Need Review
  • Assignee set to Xuehan Xu
  • Start date deleted (06/05/2019)
  • Backport set to nautilus,mimic
  • Pull request ID set to 28401
  • Component(FS) MDS added

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