Bug 1349402 – snap unprotect of a busy image results in split-brain

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Bug 1349402 - snap unprotect of a busy image results in split-brain

Summary:	snap unprotect of a busy image results in split-brain

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Ceph Storage
Classification:	Red Hat
Component:	RBD (Show other bugs)
Sub Component:
Version:	2.0
Hardware:	x86_64 Linux

Priority	unspecified Severity high
Target Milestone:	rc
Target Release:	2.0
Assigned To:	Jason Dillaman
QA Contact:	Tanay Ganguly
Docs Contact:

URL:
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Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2016-06-23 08:27 EDT by Tanay Ganguly
Modified:	2017-07-30 11:30 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	RHEL: ceph-10.2.2-9.el7cp Ubuntu: ceph_10.2.2-7redhat1xenial
Doc Type:	If docs needed, set a value
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Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-08-23 15:42:31 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
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Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Ceph Project Bug Tracker	16445	None	None	None	2016-06-23 08:50 EDT
Red Hat Product Errata	RHBA-2016:1755	normal	SHIPPED_LIVE	Red Hat Ceph Storage 2.0 bug fix and enhancement update	2016-08-23 19:23:52 EDT

Groups: None (edit)

Description Tanay Ganguly 2016-06-23 08:27:18 EDT

Description of problem:
Trying to unprotect snap from Master Node, leading to inconsistency in Slave Journal

Version-Release number of selected component (if applicable):
10.2.2-5

How reproducible:


Steps to Reproduce:
1. Try to unprotect a snap from Parent Node.
2. Seeing the Image status as: 
liver1:
global_id:   e3415007-fcd9-402f-8a44-ede6d886cb96
   state:       up+error
  description: failed to commit journal event
  last_update: 2016-06-23 12:13:03

On the Slave Node

Actual results:
Its getting a “Device or resource busy” error from the master cluster

Expected results:
It should be up+replaying or syncing

Additional info:

Comment 3 Jason Dillaman 2016-06-27 12:08:20 EDT

Merged in upstream master: https://github.com/ceph/ceph/pull/9895

Comment 6 Tanay Ganguly 2016-07-26 06:03:16 EDT

Marking this as Verified, as i am unable to reproduce it.

ceph version 10.2.2-27.el7cp

Comment 8 errata-xmlrpc 2016-08-23 15:42:31 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-1755.html

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