gluster volume stats

- works OK if all nodes are up, but breaks it one or more nodes are not available. Typically the list of bricks stops as soon as it comes to a brick on a downed node.

Version-Release number of selected component (if applicable):
3.3 qa31

To reproduce:

visit random node
"service glusterd stop"
visit random client
"gluster volume status"
- result should be truncated when it reached downed node.

Have tried on 2 stripe replica and 4 stripe replica.  

Conditions;

The faulty node must contain an active volume.
The output of "gluster volume status" will be different depending on which node you take out.