[Gluster-users] I have an error of unify with Gluster 3.0!

[lesonus]

*I use this configuration of client, it run well on Gluster 2.06. but 
not well with Gluster 3.0:*
#---------------------------------------------------------------------------
### Add client feature and attach to remote subvolume of server1
volume brick1
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.19    # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume
 
### Add client feature and attach to remote subvolume of server2
volume brick2
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.20      # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume
 
### Add client feature and attach to remote subvolume of server3
volume brick3
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.21      # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume
 
### Add client feature and attach to remote subvolume of server4
volume brick4
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.22      # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume
 
### Add client feature and attach to remote subvolume of server1
volume brick1-ns
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.19    # IP address of the remote brick
 option remote-subvolume brick-ns        # name of the remote volume
end-volume
 
### Add client feature and attach to remote subvolume of server2
volume brick2-ns
 type protocol/client
 option transport-type tcp/client
 option remote-host 11.0.0.20      # IP address of the remote brick
 option remote-subvolume brick-ns        # name of the remote volume
end-volume
 
volume afr1
 type cluster/afr
 subvolumes brick1 brick4
end-volume
 
volume afr2
 type cluster/afr
 subvolumes brick2 brick3
end-volume
 
volume afr-ns
 type cluster/afr
 subvolumes brick1-ns brick2-ns
end-volume
 
volume unify
  type cluster/unify
  option scheduler rr # round robin
  option namespace afr-ns
  subvolumes afr1 afr2
end-volume
#---------------------------------------------------------------------------

I also replace *"type cluster/unify" *by *"type legacy/cluster/unify"*, 
but error still,
and error log like that:

....................
63: 64: volume unify
65:   type legacy/cluster/unify
66:   option scheduler rr # round robin
67:   option namespace afr-ns
68:   subvolumes afr1 afr2
69: end-volume
+------------------------------------------------------------------------------+ 

[2010-01-04 00:02:19] C [unify.c:4361:init] unify: Namespace node should 
not be a child of any other node. Exiting
[2010-01-04 00:02:19] E [xlator.c:838:xlator_init_rec] unify: 
Initialization of volume 'unify' failed, review your volfile again
[2010-01-04 00:02:19] E [unify.c:4467:init] unify: initializing 
namespace node failed, Exiting
[2010-01-04 00:02:19] E [xlator.c:838:xlator_init_rec] unify: 
Initialization of volume 'unify' failed, review your volfile again
[2010-01-04 00:02:19] E [glusterfsd.c:583:_xlator_graph_init] glusterfs: 
initializing translator failed
[2010-01-04 00:02:19] E [glusterfsd.c:1347:main] glusterfs: translator 
initialization failed.  exiting
*
Please help me Fix this problem!
Thanks in advanced!*