Bug 1267812

+++ This bug was initially created as a clone of Bug #1265623 +++

Description of problem:
=====================
Once quota hard limits are hit for a tier volume, promotes and demotes are failing.
Only link files are getting created, but files are not getting migrated.
As tiering migration is internal, it should do promos/demos even on quota filled vols.





Version-Release number of selected component (if applicable):
==============================================================
[root@zod ~]# 
[root@zod ~]# 
[root@zod ~]# rpm -qa|grep gluster
glusterfs-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-fuse-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-debuginfo-3.7.4-0.33.git1d02d4b.el7.centos.x86_64
glusterfs-api-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-client-xlators-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-server-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-cli-3.7.4-0.43.gitf139283.el7.centos.x86_64
glusterfs-libs-3.7.4-0.43.gitf139283.el7.centos.x86_64
[root@zod ~]# gluster --version
glusterfs 3.7.4 built on Sep 19 2015 01:30:43
Repository revision: git://git.gluster.com/glusterfs.git
Copyright (c) 2006-2011 Gluster Inc. <http://www.gluster.com>
GlusterFS comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of GlusterFS under the terms of the GNU General Public License.
[root@zod ~]# 





Steps to Reproduce:
==================
1.create a tier volume
2.enable quota and set hardlimit to say 5gb
3.now fill the hardlimit and wait for demotes to happen

It can be seen that only link files are created but files are not really moved.

Errors:
=========

[2015-09-23 10:04:03.249877] E [MSGID: 109039] [dht-helper.c:1176:dht_rebalance_inprogress_task] 0-taiwan-cold-dht: /h.125: failed to get the 'linkto' xattr [No data available]
[2015-09-23 10:04:03.250197] E [MSGID: 109023] [dht-rebalance.c:800:__dht_rebalance_open_src_file] 0-taiwan-tier-dht: failed to set xattr on /h.125 in taiwan-cold-dht (Invalid argument)
[2015-09-23 10:04:03.250228] E [MSGID: 109023] [dht-rebalance.c:1106:dht_migrate_file] 0-taiwan-tier-dht: Migrate file failed: failed to open /h.125 on taiwan-cold-dht
[2015-09-23 10:04:03.250880] E [MSGID: 109037] [tier.c:365:tier_migrate_using_query_file] 0-taiwan-tier-dht: ERROR -28 in current migration h.125 /h.125


[root@zod ~]# gluster v rebal taiwan status
                                    Node Rebalanced-files          size       scanned      failures       skipped               status   run time in secs
                               ---------      -----------   -----------   -----------   -----------   -----------         ------------     --------------
                               localhost               12        0Bytes           216           204             0          in progress            3203.00
                                  yarrow              103        0Bytes           862           759             0          in progress            3203.00
volume rebalance: taiwan: success:

--- Additional comment from nchilaka on 2015-09-23 07:39:01 EDT ---

sosreports
[root@rhsqe-repo bug.1265623]# cd ..
[root@rhsqe-repo sosreports]# chmod -R 0777 bug.1265623
[root@rhsqe-repo sosreports]# pwd
/home/repo/sosreports
[root@rhsqe-repo sosreports]# hostname
rhsqe-repo.lab.eng.blr.redhat.com




 username:qe-admin