Bug 770346

Summary:	Remove-brick commit operation causing data loss
Product:	[Community] GlusterFS	Reporter:	shylesh <shmohan>
Component:	core	Assignee:	Amar Tumballi <amarts>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	mainline	CC:	amarts, gluster-bugs, joe, vraman
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	BETA1
Fixed In Version:	glusterfs-3.4.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-24 17:26:25 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:	3.3.0qa33	Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	817967

Description shylesh 2011-12-26 06:05:39 UTC

Description of problem:
removing a brick looses all data from that brick

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

How reproducible:
often

Steps to Reproduce:
1.create a distribute volume with 2 bricks 
2.create some files and directories on the mount point
3.gluster volume remove-brick $vol $brick2 start 
4. Once the status shows completed execute "gluster volume remove-brick $vol $brick2 commit"
  
Actual results:
Number of files decreased on the mount point after the operation

Expected results:
This feature should migrate the files to the remaining bricks and there should be no data loss

Additional info:

Comment 1 Amar Tumballi 2012-03-12 09:46:35 UTC

please update these bugs w.r.to 3.3.0qa27, need to work on it as per target milestone set.

Comment 2 shylesh 2012-03-12 10:23:06 UTC

 This bug is still reproducible on  3.3.0qa27

(In reply to comment #1)
> please update these bugs w.r.to 3.3.0qa27, need to work on it as per target
> milestone set.

Comment 3 Amar Tumballi 2012-03-13 12:34:06 UTC

patch sent : http://review.gluster.com/2933

Comment 4 Anand Avati 2012-03-14 10:24:32 UTC

CHANGE: http://review.gluster.com/2933 (distribute-rebalance: fix the logic of ENOENT handling) merged in master by Vijay Bellur (vijay)

Comment 5 shylesh 2012-04-09 06:42:08 UTC

Data loss upon single brick removal is fixed, however removing multiple bricks at the same time has issues will log a new bug.