Gluster users - Apr 2015 - Unable to make HA work; mounts hang on remote node reboot

I am hoping someone can give me some direction on this. I have been searching
and trying various tweaks all day. I am trying to setup a two-node cluster with
a replicated volume. Each node has a brick under /export, and a local mount
using glusterfs under /mnt.
	gluster volume create test1 rep 2 g01.x.local:/exports/sdb1/brick
g02.x.local:/exports/sdb1/brick
	gluster volume start test1
	mount -t glusterfs g01.x.local:/test1 /mnt/test1
When I write a file to one node, it shows up instantly on the other? just as I
expect it to. The volume was created as:

My problem is that if I reboot one node, the mount on the other completely hangs
until the rebooted node comes back up. This seems to defeat the purpose of being
highly-available. Is there some setting I am missing? How do I keep the volume
on a single node alive during a failure?
Any info is appreciated. Thank you.