Bug 1304684

Summary:	[quota]: Incorrect disk usage shown on a tiered volume
Product:	Red Hat Gluster Storage	Reporter:	krishnaram Karthick <kramdoss>
Component:	quota	Assignee:	Vijaikumar Mallikarjuna <vmallika>
Status:	CLOSED ERRATA	QA Contact:	krishnaram Karthick <kramdoss>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.1	CC:	byarlaga, mselvaga, rcyriac, rgowdapp, rhs-bugs, sankarshan, smohan, storage-qa-internal
Target Milestone:	---	Keywords:	ZStream
Target Release:	RHGS 3.1.2
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.7.5-19	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1304970 (view as bug list)		Environment:
Last Closed:	2016-03-01 06:09:06 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:
Bug Depends On:
Bug Blocks:	1304970, 1305029

Description krishnaram Karthick 2016-02-04 10:57:58 UTC

Description of problem:
When quota is enabled on a tiered volume and limit usage on root directory is set to a high value, data usage usage shown an inflated value. A value which is more than the capacity of actual volume size.

Actual value:
Filesystem             Size  Used Avail Use% Mounted on

10.70.37.120:/krk-vol  1.9T  627G  1.3T  34% /mnt/krkvol

value shown on client with quota enabled,
Filesystem             Size  Used Avail Use% Mounted on
10.70.37.120:/krk-vol  100P  9.5T  100P   1% /mnt/krkvol


Version-Release number of selected component (if applicable):
glusterfs-server-3.7.5-18.el7rhgs.x86_64

How reproducible:
Yet to be determined

Steps to Reproduce:
1. Create a volume, enable quota and set limit usage to root directory
2. Attach tier and have files promoted, new files written to hot tier
3. create multiple sub-directories and set limit usage
4. Have data written to these sub-directories
5. Disable quota
6. Enable quota
7. Repeat steps 3 & 4
8. Detach tier and wait for it to complete

Actual results:
disk usage shows incorrect value

Expected results:
Actual disk usage should be shown

Additional info:

Comment 3 Manikandan 2016-02-05 10:49:54 UTC

Patch submitted upstream: http://review.gluster.org/13363

Patch submitted downstream:
https://code.engineering.redhat.com/gerrit/#/c/67161/

Comment 5 Manikandan 2016-02-05 11:37:08 UTC

Patch posted 3.7 -> http://review.gluster.org/13388

Comment 6 Raghavendra G 2016-02-06 13:12:21 UTC

https://code.engineering.redhat.com/gerrit/#/c/67161/

Comment 7 krishnaram Karthick 2016-02-12 05:05:08 UTC

Verified the build in glusterfs-3.7.5-19. 

Enabled quota on a tiered volume and set limit to root, ran several promotion/demotions, attach tier and detach tier. Data usage reported actual value.

Comment 9 errata-xmlrpc 2016-03-01 06:09:06 UTC

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-2016-0193.html