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Bug #19858

[rbd-mirror] failover and failback of unmodified image results in split-brain

Added by Jason Dillaman 4 months ago. Updated 4 months ago.

Status:
Pending Backport
Priority:
Normal
Target version:
-
Start date:
05/04/2017
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

If an image is gracefully failed over and immediately failed back (demote A/promote B -> demote B/promote A), the image will immediately split brain. This is caused by the lack of any data in the site B journal which prevents site A from latching onto the image.


Related issues

Copied to rbd - Backport #19872: kraken: [rbd-mirror] failover and failback of unmodified image results in split-brain Resolved
Copied to rbd - Backport #19873: jewel: [rbd-mirror] failover and failback of unmodified image results in split-brain In Progress

History

#1 Updated by Jason Dillaman 4 months ago

  • Status changed from In Progress to Need Review

#2 Updated by Mykola Golub 4 months ago

  • Status changed from Need Review to Pending Backport

#3 Updated by Jason Dillaman 4 months ago

  • Copied to Backport #19872: kraken: [rbd-mirror] failover and failback of unmodified image results in split-brain added

#4 Updated by Jason Dillaman 4 months ago

  • Copied to Backport #19873: jewel: [rbd-mirror] failover and failback of unmodified image results in split-brain added

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