[Bugs] [Bug 1179658] New: Add brick fails if parent dir of new brick and existing brick is same and volume was accessed using libgfapi and smb.

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1179658

            Bug ID: 1179658
           Summary: Add brick fails if parent dir of new brick and
                    existing brick is same and volume was accessed using
                    libgfapi and smb.
           Product: GlusterFS
           Version: 3.6.1
         Component: libgfapi
          Assignee: bugs at gluster.org
          Reporter: rtalur at redhat.com
        QA Contact: sdharane at redhat.com
                CC: bugs at gluster.org, gluster-bugs at redhat.com



Description of problem:

While doing an add-brick test saw following error :

# gluster vol add-brick afr-vol 10.16.159.197:/rhs/brick1/afr-vol/b10
10.16.159.210:/rhs/brick1/afr-vol/b11
volume add-brick: failed: parent directory /rhs/brick1/afr-vol is already part
of a volume
The error looks like the xattr is been set on parent directory so it is not
allowing the add-brick.

Workaround: To remove the xattr on parent dir and then it allows to do
add-brick.


How reproducible:
Always.


Steps to Reproduce:
1. Create a volume and access it using Windows Explorer using Samba over
libgfapi.
2. Perform a add brick operation with new brick under same dir as an existing
brick.


Actual results:
Add brick fails with error saying brick(parent dir of new brick) is already
part of the volume.


Expected results:
Add brick should succeed as new brick is not part of any volume.


Additional info:
This happens because when accessed through gfapi xattrs may have been set on
the parent of brick.

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