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Bug #18888

rbd_clone_copy_on_read ineffective with exclusive-lock

Added by Venky Shankar 2 months ago. Updated about 2 months ago.

Status:
Pending Backport
Priority:
Normal
Assignee:
Target version:
-
Start date:
02/12/2017
Due date:
% Done:

0%

Source:
Tags:
Backport:
kraken,jewel
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Release:
Needs Doc:
No

Description

With layering+exclusive-lock feature, rbd_clone_copy_on_read does not trigger object copyups from parent image. This is due to the fact that exclusive-lock is not taken for read operations.

Note that this is not the case when journaling is enabled.


Related issues

Copied to Backport #19173: kraken: rbd: rbd_clone_copy_on_read ineffective with exclusive-lock Need More Info
Copied to Backport #19174: jewel: rbd_clone_copy_on_read ineffective with exclusive-lock Need More Info

History

#1 Updated by Venky Shankar 2 months ago

  • Status changed from New to In Progress

#2 Updated by Venky Shankar 2 months ago

  • Status changed from In Progress to Need Review

#3 Updated by Venky Shankar about 2 months ago

  • Status changed from Need Review to Pending Backport

#4 Updated by Nathan Cutler about 2 months ago

  • Copied to Backport #19173: kraken: rbd: rbd_clone_copy_on_read ineffective with exclusive-lock added

#5 Updated by Nathan Cutler about 2 months ago

  • Copied to Backport #19174: jewel: rbd_clone_copy_on_read ineffective with exclusive-lock added

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