Bug 1358585

Summary: [Tiering]: No demotions are seen from one of the brick in hot tier
Product: [Community] GlusterFS Reporter: Dan Lambright <dlambrig>
Component: tieringAssignee: Milind Changire <mchangir>
Status: CLOSED WONTFIX QA Contact: bugs <bugs>
Severity: high Docs Contact:
Priority: unspecified    
Version: mainlineCC: bugs, kramdoss, mchangir, nchilaka, rkavunga
Target Milestone: ---Keywords: ZStream
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: tier-migration
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1302988 Environment:
Last Closed: 2018-11-02 08:15:05 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: 1302988    
Bug Blocks:    

Comment 1 Amar Tumballi 2018-11-02 08:15:05 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.