Bug 1304977

Summary:	tier add and remove brick
Product:	[Community] GlusterFS	Reporter:	hari gowtham <hgowtham>
Component:	tiering	Assignee:	hari gowtham <hgowtham>
Status:	CLOSED WONTFIX	QA Contact:	bugs <bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	mainline	CC:	bugs, smohan
Target Milestone:	---	Keywords:	FutureFeature, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-11-02 08:13:33 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:

Description hari gowtham 2016-02-05 07:46:50 UTC

Description of problem:


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


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Vijay Bellur 2016-02-05 08:19:51 UTC

REVIEW: http://review.gluster.org/13365 (tier : [WIP] add and remove brick support for hot and cold brick) posted (#1) for review on master by hari gowtham (hari.gowtham005)

Comment 2 Vijay Bellur 2016-02-08 09:35:50 UTC

REVIEW: http://review.gluster.org/13365 (tier : [WIP] add and remove brick support for hot and cold brick) posted (#2) for review on master by hari gowtham (hari.gowtham005)

Comment 3 hari gowtham 2016-03-02 12:29:40 UTC

The above patch has implemented only till spawning separate tier process. so a new bug has been created for it

Comment 4 Amar Tumballi 2018-11-02 08:13:33 UTC

Patch https://review.gluster.org/#/c/glusterfs/+/21331/ removes tier functionality from GlusterFS. 

https://bugzilla.redhat.com/show_bug.cgi?id=1642807 is used as the tracking bug for this. Recommendation is to convert your tier volume to regular volume (either replicate, ec, or plain distribute) with "tier detach" command before upgrade, and use backend features like dm-cache etc to utilize the caching from backend to provide better performance and functionality.