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Bug 1358586

Summary:	NFS+attach tier:IOs pause for some time during attach tier
Product:	[Community] GlusterFS	Reporter:	Dan Lambright <dlambrig>
Component:	tiering	Assignee:	Mohammed Rafi KC <rkavunga>
Status:	CLOSED WONTFIX	QA Contact:	bugs <bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	mainline	CC:	bugs, kramdoss, nchilaka, rcyriac, rhinduja, rkavunga, sankarshan
Target Milestone:	---	Keywords:	ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	tier-fuse-nfs-samba
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1303045	Environment:
Last Closed:	2018-11-02 08:15:08 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:	1303045
Bug Blocks:	1268895

Comment 1 Amar Tumballi 2018-11-02 08:15:08 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.