[Bugs] [Bug 1374412] New: Detach tier commit is allowed when detach tier start goes into failed state

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1374412

            Bug ID: 1374412
           Summary: Detach tier commit is allowed when detach tier start
                    goes into failed state
           Product: GlusterFS
           Version: 3.8.3
         Component: tiering
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: kramdoss at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org



Description of problem:
Detach tier commit operation should not be allowed when detach tier start
operation has gone into failed state. There might be files which are not moved
from hot to cold tier when a detach tier operation fails. Allowing to commit
the operation removes off the hot tier bricks, thereby making those data in hot
tier inaccessible.

Version-Release number of selected component (if applicable):
rpm -qa | grep 'gluster'
glusterfs-cli-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
glusterfs-server-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
python-gluster-3.8.3-0.1.git2ea32d9.el7.centos.noarch
glusterfs-client-xlators-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
glusterfs-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
glusterfs-fuse-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
nfs-ganesha-gluster-next.20160813.2f47e8a-1.el7.centos.x86_64
glusterfs-libs-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
glusterfs-api-3.8.3-0.1.git2ea32d9.el7.centos.x86_64
glusterfs-ganesha-3.8.3-0.1.git2ea32d9.el7.centos.x86_64

How reproducible:
Always

Steps to Reproduce:
1. create a tier vol and start detach tier operation
2. kill a brick on hot tier and restore it after a while to fail the detach
tier operation
3. Try detach tier commit

Actual results:
detach tier commit is allowed

Expected results:
detach tier commit should not be allowed

Additional info:

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