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Bug 1627044

Summary:	Converting to replica 2 volume is not throwing warning
Product:	[Community] GlusterFS	Reporter:	Karthik U S <ksubrahm>
Component:	replicate	Assignee:	Karthik U S <ksubrahm>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	mainline	CC:	bugs, nchilaka, pasik, ravishankar, rhs-bugs, sankarshan, storage-qa-internal, vavuthu
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-5.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1579758	Environment:
Last Closed:	2018-10-23 15:19:00 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1579758

Description Karthik U S 2018-09-10 10:26:31 UTC

+++ This bug was initially created as a clone of Bug #1579758 +++

Description of problem:

Converting to replica 2 volume is not throwing warning

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

glusterfs-3.12.2-10.el7rhgs.x86_64

How reproducible:

Always

Below Scenarios was not throwing Warning while converting to replica 2

1) while converting distribute only to x2
2) while removing bricks from x3 to convert to x2
3) while adding/removing bricks in x2 configurations

Actual results:

Doesn't show any warning while doing above scenarios

Expected results:

Expecting to throw warning like below

" Replica 2 volumes are prone to split-brain. Use Arbiter or Replica 3 to avoid this.
Do you still want to continue?
 (y/n) y
"

Additional info:

Comment 1 Worker Ant 2018-09-10 10:32:12 UTC

REVIEW: https://review.gluster.org/21136 (cli: Add warning message while converting to replica 2 configuration) posted (#1) for review on master by Karthik U S

Comment 2 Worker Ant 2018-09-11 02:36:09 UTC

COMMIT: https://review.gluster.org/21136 committed in master by "Atin Mukherjee" <amukherj> with a commit message- cli: Add warning message while converting to replica 2 configuration

Currently while creating replica 2 volume we display a warning message
of ending up in split-brain. But while converting an existing volume
from other configuration to replica 2 by add-brick or remove-brick
operations we do not show any such messages.
With this fix in add-brick and remove-brick cases also we will display
the same warning message and prompt for confirmation if the configuration
changes to replica 2.

Change-Id: Ifc4ed6994a087d2403894f4e743c4eb41633276b
fixes: bz#1627044
Signed-off-by: karthik-us <ksubrahm>

Comment 3 Shyamsundar 2018-10-23 15:19:00 UTC

This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-5.0, please open a new bug report.

glusterfs-5.0 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.

[1] https://lists.gluster.org/pipermail/announce/2018-October/000115.html
[2] https://www.gluster.org/pipermail/gluster-users/