Bug 1290401

Summary: File is not demoted after self heal (split-brain)
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: RajeshReddy <rmekala>
Component: tierAssignee: Bug Updates Notification Mailing List <rhs-bugs>
Status: CLOSED ERRATA QA Contact: RajeshReddy <rmekala>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rhgs-3.1CC: josferna, mzywusko, rcyriac, rhs-bugs, rkavunga, sankarshan, storage-qa-internal
Target Milestone: ---Keywords: ZStream
Target Release: RHGS 3.1.2   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: glusterfs-3.7.5-12 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 1290975 (view as bug list) Environment:
Last Closed: 2016-03-01 06:02:29 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: 1290975, 1291002    

Description RajeshReddy 2015-12-10 12:44:13 UTC 
Description of problem:
=============
File is not demoted after self heal (split-brain)

Version-Release number of selected component (if applicable):
=============
glusterfs-server-3.7.5-10.el7rhgs.x86_64

How reproducible:


Steps to Reproduce:
===========
1. Create 2x2 volume and attach 2x2 hot tier and mount it on client using FUSE 
2. Create directory and create two files, and make sure these two files are in split-brain (modify the files when one set of bricks down and again modify the files when other set of bricks down)
3. Heal the file and after heal able to access the file from the mount but even after many cycles also this file is not demoted 

Actual results:


Expected results:
==========
File should be demoted 


Additional info:
=========
After restarting the tier daemon file is getting demoted 

[root@rhs-client18 debug]# gluster vol info test_tier 
 
Volume Name: test_tier
Type: Tier
Volume ID: 9bca8ffb-d47c-4636-95ab-2cfc58da422e
Status: Started
Number of Bricks: 8
Transport-type: tcp
Hot Tier :
Hot Tier Type : Distributed-Replicate
Number of Bricks: 2 x 2 = 4
Brick1: rhs-client19.lab.eng.blr.redhat.com:/rhs/brick5/test_tier_hot4
Brick2: rhs-client18.lab.eng.blr.redhat.com:/rhs/brick5/test_tier_hot4
Brick3: rhs-client19.lab.eng.blr.redhat.com:/rhs/brick4/test_tier_hot3
Brick4: rhs-client18.lab.eng.blr.redhat.com:/rhs/brick4/test_tier_hot3
Cold Tier:
Cold Tier Type : Distributed-Replicate
Number of Bricks: 2 x 2 = 4
Brick5: rhs-client18.lab.eng.blr.redhat.com:/rhs/brick7/test_tier_hot1
Brick6: rhs-client19.lab.eng.blr.redhat.com:/rhs/brick7/test_tier_hot1
Brick7: rhs-client18.lab.eng.blr.redhat.com:/rhs/brick6/test_tier_hot2
Brick8: rhs-client19.lab.eng.blr.redhat.com:/rhs/brick6/test_tier_hot2
Options Reconfigured:
cluster.lookup-optimize: on
performance.readdir-ahead: on
features.ctr-enabled: on
cluster.tier-mode: test
Comment 1 Joseph Elwin Fernandes 2015-12-10 15:23:35 UTC 
RCA done.
Comment 4 Joseph Elwin Fernandes 2015-12-12 16:07:20 UTC 
https://code.engineering.redhat.com/gerrit/#/c/63603/
Comment 6 RajeshReddy 2015-12-21 14:14:39 UTC 
Tested with build glusterfs-server-3.7.5-12, after healing the file, it is getting promoted and demoted so marking this bug as verified
Comment 8 errata-xmlrpc 2016-03-01 06:02:29 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