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Bug #36192

closed

Internal fragment of ObjectCacher

Added by Zheng Yan over 5 years ago. Updated over 4 years ago.

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

0%

Source:
Development
Tags:
Backport:
mimic,luminous,jewel
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
osdc
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

ObjectCacher::Object::merge_left() may cause severe internal fragments if both buffer head only have a few data (both buffer head have 4K preallocated space)


Related issues 3 (0 open3 closed)

Copied to CephFS - Backport #36642: luminous: Internal fragment of ObjectCacherResolvedZheng YanActions
Copied to CephFS - Backport #36643: mimic: Internal fragment of ObjectCacherResolvedZheng YanActions
Copied to CephFS - Backport #36664: jewel: Internal fragment of ObjectCacherRejectedZheng YanActions
Actions #1

Updated by Patrick Donnelly over 5 years ago

  • Assignee set to Zheng Yan
  • Priority changed from Normal to High
  • Target version set to v14.0.0
  • Start date deleted (09/26/2018)
  • Source set to Development
  • Backport set to mimic,luminous
  • Component(FS) osdc added
Actions #3

Updated by Patrick Donnelly over 5 years ago

  • Status changed from New to Fix Under Review
Actions #4

Updated by Andras Pataki over 5 years ago

I've applied this patch on 12.2.7, rebuilt ceph-fuse and ran my test case that originally produced this issue. Happy to report that the ceph-fuse memory usage is now stable after several days of running.

Actions #5

Updated by Jason Dillaman over 5 years ago

  • Status changed from Fix Under Review to Pending Backport
Actions #6

Updated by Patrick Donnelly over 5 years ago

  • Copied to Backport #36642: luminous: Internal fragment of ObjectCacher added
Actions #7

Updated by Patrick Donnelly over 5 years ago

  • Copied to Backport #36643: mimic: Internal fragment of ObjectCacher added
Actions #8

Updated by Jason Dillaman over 5 years ago

  • Backport changed from mimic,luminous to mimic,luminous,jewel
Actions #9

Updated by Jason Dillaman over 5 years ago

  • Copied to Backport #36664: jewel: Internal fragment of ObjectCacher added
Actions #10

Updated by Nathan Cutler over 4 years ago

  • Status changed from Pending Backport to Resolved
Actions

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