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Bug #48486

closed

readahead is incorrectly running when cache is writearound

Added by Jason Dillaman over 3 years ago. Updated about 3 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Jason Dillaman
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
octopus
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
38602
Crash signature (v1):
Crash signature (v2):

Description

Since the writearound cache does not actually cache data in-memory, these readaheads are effectively no-ops and wasted IO cycles.

Related issues 1 (0 open — 1 closed)

Copied to rbd - Backport #48674: octopus: readahead is incorrectly running when cache is writearoundResolvedJason DillamanActions
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 #1

Updated by Jason Dillaman over 3 years ago

  • Status changed from New to In Progress
  • Assignee set to Jason Dillaman
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 #2

Updated by Jason Dillaman over 3 years ago

  • Status changed from In Progress to Fix Under Review
  • Pull request ID set to 38602
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 #3

Updated by Mykola Golub over 3 years ago

  • Status changed from Fix Under Review to Pending Backport
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 #4

Updated by Backport Bot over 3 years ago

  • Copied to Backport #48674: octopus: readahead is incorrectly running when cache is writearound added
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 #5

Updated by Loïc Dachary about 3 years ago

  • Status changed from Pending Backport to Resolved

While running with --resolve-parent, the script "backport-create-issue" noticed that all backports of this issue are in status "Resolved" or "Rejected".

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