Description of problem:
when we do snapshot create, we usually try to fetch the brick details 
and try to set the file system type for snapshot bricks.

glusterd can get the file system details of local node, But it fails
to get file system type of other nodes. Because of this an error is
reported in log.


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


How reproducible:
1/1


Steps to Reproduce:
1. Create a distributed volume.
2. Try to take a snapshot
3. Check the log.

Actual results:
glusterd fails to update file system type of other nodes.

Expected results:
Check and updation should only be made on local node.

Additional info:

-----------------------------------------------------------------------------

[root@snapshot-24 glusterfs]# gluster v i
 
Volume Name: vol1
Type: Distribute
Volume ID: 805ad7b5-45a3-4cd5-8e5b-dea8b08fc4b8
Status: Started
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: 10.70.43.192:/brick0/b0
Brick2: 10.70.43.75:/brick4/b4
Options Reconfigured:
features.barrier: disable
snap-max-hard-limit: 256
snap-max-soft-limit: 90
auto-delete: disable

[root@snapshot-24 glusterfs]# gluster snapshot create snap1 vol1

Log on Node 10.70.43.192
------------------------

[2014-06-19 00:05:43.169712] E [glusterd-snapshot.c:3800:glusterd_update_fstype] 0-management: getting the root of th
e brick (/brick4/b4) failed 
[2014-06-19 00:05:43.169780] E [glusterd-snapshot.c:3876:glusterd_add_brick_to_snap_volume] 0-management: Failed to u
pdate file-system type for  brick
[2014-06-19 00:05:44.594857] I [rpc-clnt.c:969:rpc_clnt_connection_init] 0-management: setting frame-timeout to 600
[2014-06-19 00:05:44.615626] I [socket.c:2246:socket_event_handler] 0-transport: disconnecting now
[2014-06-19 00:05:44.616013] I [MSGID: 106005] [glusterd-handler.c:4150:__glusterd_brick_rpc_notify] 0-management: Br
ick 10.70.43.192:/var/run/gluster/snaps/3b026a06950e4a69881d9cb8e6ded4a9/brick1/b0 has disconnected from glusterd.
[2014-06-19 00:05:44.627136] W [glusterd-utils.c:1558:glusterd_snap_volinfo_find] 0-management: Snap volume 3b026a069
50e4a69881d9cb8e6ded4a9.10.70.43.192.var-run-gluster-snaps-3b026a06950e4a69881d9cb8e6ded4a9-brick1-b0 not found
[2014-06-19 00:05:44.644145] I [glusterd-pmap.c:227:pmap_registry_bind] 0-pmap: adding brick /var/run/gluster/snaps/3
b026a06950e4a69881d9cb8e6ded4a9/brick1/b0 on port 49154


Log on Node 10.70.43.75:

[2014-06-19 00:05:39.227389] E [glusterd-snapshot.c:3800:glusterd_update_fstype] 0-management: getting the root of th
e brick (/brick0/b0) failed 
[2014-06-19 00:05:39.227450] E [glusterd-snapshot.c:3876:glusterd_add_brick_to_snap_volume] 0-management: Failed to u
pdate file-system type for  brick
[2014-06-19 00:05:40.581735] I [rpc-clnt.c:969:rpc_clnt_connection_init] 0-management: setting frame-timeout to 600
[2014-06-19 00:05:40.603641] I [socket.c:2246:socket_event_handler] 0-transport: disconnecting now
[2014-06-19 00:05:40.606169] I [MSGID: 106005] [glusterd-handler.c:4150:__glusterd_brick_rpc_notify] 0-management: Br
ick 10.70.43.75:/var/run/gluster/snaps/305b08000bb740939d057f3d140583f1/brick2/b4 has disconnected from glusterd.
[2014-06-19 00:05:40.606529] W [glusterd-utils.c:1558:glusterd_snap_volinfo_find] 0-management: Snap volume 305b08000
bb740939d057f3d140583f1.10.70.43.75.var-run-gluster-snaps-305b08000bb740939d057f3d140583f1-brick2-b4 not found
[2014-06-19 00:05:40.623401] I [glusterd-pmap.c:227:pmap_registry_bind] 0-pmap: adding brick /var/run/gluster/snaps/3
05b08000bb740939d057f3d140583f1/brick2/b4 on port 49153

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