Bug 1241776

Summary:	[Data Tiering]: HOT Files get demoted from hot tier
Product:	[Community] GlusterFS	Reporter:	Joseph Elwin Fernandes <josferna>
Component:	tiering	Assignee:	bugs <bugs>
Status:	CLOSED CURRENTRELEASE	QA Contact:	bugs <bugs>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	3.7.2	CC:	bugs, nchilaka, sankarshan
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.7.3	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1240970	Environment:
Last Closed:	2015-07-30 09:50:04 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:	1240970
Bug Blocks:	1260923

Description Joseph Elwin Fernandes 2015-07-10 05:45:20 UTC

+++ This bug was initially created as a clone of Bug #1240970 +++

Description of problem:

Files which are HOT are getting demoted from the hot tier.

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

How reproducible:

1) create a dist-rep volume 1x2
2) start the volume 
3) switch off the performance xlator (optional)
4) attach a dist-rep tier 1x2
5) fuse mount the volume
6) create a file : touch file1.
7) heat up the file : for i in {1..10}; do touch file1; done
8) wait for the default promotion/demotion frequency secs i.e sleep 120
9) the file demoted! [shouldn't demote!!]
10) Heat up the file again: for i in {1..10}; do touch file1; done
11) wait for the default promotion/demotion frequency secs i.e sleep 120
12) the file is promoted [as expected]
13) heat up the file : for i in {1..10}; do touch file1; done
14) wait for the default promotion/demotion frequency secs i.e sleep 120
15) the file demoted! [shouldn't demote!!]


Actual results:
HOT file Demoted!

Expected results:
HOT File shouldn't demote


Additional info:

--- Additional comment from Anand Avati on 2015-07-08 05:25:31 EDT ---

REVIEW: http://review.gluster.org/11577 (libgfdb/sql: Fixing broken query of find_unchanged) posted (#1) for review on master by Joseph Fernandes

--- Additional comment from Joseph Elwin Fernandes on 2015-07-08 05:29:36 EDT ---

Comment 1 Anand Avati 2015-07-10 05:51:53 UTC

REVIEW: http://review.gluster.org/11608 (libgfdb/sql: Fixing broken query of find_unchanged) posted (#1) for review on release-3.7 by Joseph Fernandes

Comment 2 Kaushal 2015-07-30 09:50:04 UTC

This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-3.7.3, please open a new bug report.

glusterfs-3.7.3 has been announced on the Gluster mailinglists [1], packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist [2] and the update infrastructure for your distribution.

[1] http://thread.gmane.org/gmane.comp.file-systems.gluster.devel/12078
[2] http://thread.gmane.org/gmane.comp.file-systems.gluster.user