[Gluster-devel] help to check correctness

[Simon Hunanyan]

Hi,

I am beginner at GlusterFS and ask you to help me. I have adapted the
simple sample "GlusterFS\GlusterFS 1_2 Configuration Example for Four
Bricks" (http://www.gluster.org/docs/index.php/GlusterFS_1.2_Configuration_Example_for_Four_Bricks)
to the version 1.3.9. Please see below the configuration files

Server volume for the 1st node:: server0.vol

volume brick
        type storage/posix
        option directory /home/cfs0
end-volume

volume server
        type protocol/server
        option transport-type tcp/server
        option listen-port 6996
        option bind-address 127.0.0.1
        subvolumes brick
        option auth.ip.brick.allow *
end-volume

Server volume for the 2st node: server1.vol

volume brick
        type storage/posix
        option directory /home/cfs1
end-volume

volume server
        type protocol/server
        option transport-type tcp/server
        option listen-port 6997
        option bind-address 127.0.0.1
        subvolumes brick
        option auth.ip.brick.allow *
end-volume

Server volume for namespace node: server3.vol

volume brick-ns
        type storage/posix
        option directory /home/cfs2
end-volume

volume server
        type protocol/server
        option transport-type tcp/server
        option listen-port 6998
        option bind-address 127.0.0.1
        subvolumes brick-ns
        option auth.ip.brick-ns.allow *
end-volume

Configure the client node: client.vol

volume client0
 type protocol/client
 option transport-type tcp/client
 option remote-host 127.0.0.1
 option remote-port 6996
 option remote-subvolume brick
end-volume

volume client1
 type protocol/client
 option transport-type tcp/client
 option remote-host 127.0.0.1
 option remote-port 6997
 option remote-subvolume brick
end-volume

volume client-ns
 type protocol/client
 option transport-type tcp/client
 option remote-host 127.0.0.1
 option remote-port 6998
 option remote-subvolume brick-ns
end-volume

volume bricks
  type cluster/unify
  option namespace client-ns # this will not be storage child of unify
  subvolumes client0 client1
  option rr.limits.min-free-disk 5%.
  option scheduler rr
end-volume

### Add writebehind feature
volume writebehind
  type performance/write-behind
  option aggregate-size 131072 # unit in bytes
  subvolumes bricks
end-volume

### Add readahead feature
volume readahead
  type performance/read-ahead
  option page-size 65536     # unit in bytes
  option page-count 16       # cache per file  = (page-count x page-size)
  subvolumes writebehind
end-volume

I think, it is working. At least, log file contains no any error
records and when I try to create files in the mounted folder, the
server mapped folders receive copy of these files. But I cannot
understand - should the maped and namespace folders contain all files
too?

touch ./glusterfs/file{0,1,2,3,4,5,6,7,8}
find /home/cfs[0-3] -type f

/home/cfs0/file7
/home/cfs0/file1
/home/cfs0/file5
/home/cfs0/file3
/home/cfs1/file6
/home/cfs1/file2
/home/cfs1/file4
/home/cfs1/file0
/home/cfs1/file8
/home/cfs2/file6
/home/cfs2/file2
/home/cfs2/file4
/home/cfs2/file7
/home/cfs2/file0
/home/cfs2/file1
/home/cfs2/file5
/home/cfs2/file8
/home/cfs2/file3
/home/glusterfs/file6
/home/glusterfs/file2
/home/glusterfs/file4
/home/glusterfs/file7
/home/glusterfs/file0
/home/glusterfs/file1
/home/glusterfs/file5
/home/glusterfs/file8
/home/glusterfs/file3

Please help me to understand correctness of test result.

TIA,

Simon