[Bugs] [Bug 1406569] New: Element missing for arbiter bricks in XML volume status details output

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1406569

            Bug ID: 1406569
           Summary: Element missing for arbiter bricks in XML volume
                    status details output
           Product: GlusterFS
           Version: 3.7.17
         Component: cli
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: giuseppe.ragusa at hotmail.com
                CC: bugs at gluster.org



Description of problem:

Output of 'gluster volume status <vol-name> details --xml' should have a
<device> element for all the bricks in the volume, but it is missing for the
arbiter bricks.

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

3.7.17-1

How reproducible:

Always.


Steps to Reproduce:
1. Create a replica 3 with arbiter volume named myvol
2. Try to get XML volume status details output from commandline with: "gluster
volume status myvol details --xml"

Actual results:

The output does not contain the <device> element for the arbiter bricks.

Expected results:

The output does contain the <device> element for all the bricks in the volume,
including the arbiter bricks.

Additional info:

This output format error causes VDSM to fail with a Python stack trace.
Bug discussed and diagnosed (by Ramesh Nachimuthu) on oVirt and GlusterFS
users' mailing list, see:

http://www.gluster.org/pipermail/gluster-users/2016-December/029485.html

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