Bug 1287532

Summary:	After detach-tier start writes still go to hot tier
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Bhaskarakiran <byarlaga>
Component:	tier	Assignee:	Bug Updates Notification Mailing List <rhs-bugs>
Status:	CLOSED ERRATA	QA Contact:	Nag Pavan Chilakam <nchilaka>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	rhgs-3.1	CC:	josferna, mzywusko, nchilaka, rhs-bugs, sankarshan, storage-qa-internal
Target Milestone:	---	Keywords:	Regression, ZStream
Target Release:	RHGS 3.1.2
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.7.5-11	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1289602 (view as bug list)		Environment:
Last Closed:	2016-03-01 06:00:14 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:
Bug Blocks:	1260783, 1289602

Description Bhaskarakiran 2015-12-02 09:52:39 UTC

Description of problem:
=======================

This was working earlier and is a regression now with feature freeze build.

If hot tier is detached, all writes are going to hot tier and the rebalance too works at the same time. Ideally writes should go to cold tier

Version-Release number of selected component (if applicable):
=============================================================
3.7.5-7

How reproducible:
=================
100%

Steps to Reproduce:
1. Create 8+4 ec and attach 2x2 dist-rep hot tier
2. Start IO (linux untar and parallel writes)
3. Now detach-tier. Check both the tier.log and rebalance.log and files getting written to hot tier.

Actual results:
===============
After detach-tier new writes still go to hot tier.

Expected results:
=================
All new writes should go to cold tier after detach-tier.


Additional info:

Comment 7 krishnaram Karthick 2015-12-13 13:19:16 UTC

Verified the bug in build - 3.7.5-11.el7rhgs.x86_6

Steps followed:

1) On a hot tier volume, started IOs. All new writes at this point goes to hot tier
2) started detach tier --> gluster vol <vol-name> detach start
3) once the detach tier status showed complete on all bricks, no new files were being created in hot tier.

Comment 9 errata-xmlrpc 2016-03-01 06:00:14 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