[Bugs] [Bug 1492542] New: Gluster v status client-list prints wrong output for multiplexed volume.

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1492542

            Bug ID: 1492542
           Summary: Gluster v status client-list prints wrong output for
                    multiplexed volume.
           Product: GlusterFS
           Version: mainline
         Component: glusterd
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: hgowtham at redhat.com
                CC: bugs at gluster.org



Description of problem:

the output for client-list prints more number of clients than it actually has. 


Version-Release number of selected component (if applicable):
master (not backported to  other branches so far)

How reproducible:
100%

Steps to Reproduce:
1.enable brick multiplexing (works fine for brick mux disabled)
2.create a volume and mount it (fuse mount is enough as a client)
3.gluster v status <volname> client-list


Actual results:
gluster v status v1 client-list
Client connections for volume v1
Name                                                       count
-----                                                     ------
fuse                                                           4

total clients for volume v1 : 4 
-----------------------------------------------------------------




Expected results:
gluster v status v1 client-list
Client connections for volume v1
Name                                                       count
-----                                                     ------
fuse                                                           1

total clients for volume v1 : 1
-----------------------------------------------------------------




Below is the status and number of clients for the volume:
gluster v status
Status of volume: v1
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick 192.168.122.17:/data/gluster/bricks/b
1                                           49152     0          Y       22707
Brick 192.168.122.17:/data/gluster/bricks/b
2                                           49152     0          Y       22707
Brick 192.168.122.17:/data/gluster/bricks/b
3                                           49152     0          Y       22707
Brick 192.168.122.17:/data/gluster/bricks/b
4                                           49152     0          Y       22707

Task Status of Volume v1
------------------------------------------------------------------------------
There are no active volume tasks

192.168.122.17:/v1 on /data/gluster/mount/v1 type fuse.glusterfs
(rw,default_permissions,allow_other,max_read=131072)


Additional info:
The number of clients is increased because for a brick multiplexed volume the
client to brick connection (xprt) is multiplexed and not one to one. 
Every client has the connection for every other server to it is populated those
many number of times (number of brick in that process)

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