[Gluster-devel] Weird AFR behaviour with combination of local storage bricks and remote volumes

[Sam Douglas]

Hello

With both 1.3.7 and TLA:

I have a test AFR setup along the lines of:

###

volume brickA
    type storage/posix
    option directory /stuff/brickA
end-volume

volume clientA
    type protocol/client
    option transport-type tcp/client
    option remote-host 10.0.0.1  # On some other system
    option remote-subvolume brickA
end-volume

volume afrA
    type cluster/afr
    option replicate *:2
    subvolumes brickA clientA
end-volume

volume server
    # exports brickA and afrA
end-volume

###

When a client mounts the AFR volume, files are not created on the
storage/posix volume, only on the client volume. Symlink, mknod etc.
still work.

Adding a debug/trace over the storage/posix shows that lookup and symlink fops
are being called on the brick, but no readv/writev and open calls.

If another protocol/client translator is added that connects to the
exported storage
volume via the server, then everything works as expected.

Any clues?

-- Sam Douglas