[sheepdog] [Sheepdog] [PATCH 0/4] fix a race when multiple sheep join a cluster very quickly

[Christoph Hellwig]

On Wed, May 16, 2012 at 10:44:14PM +0800, Yunkai Zhang wrote:
> Hi Hellwig, Do you have any comments on my latest unregister patch
> which have been updated to reflect your previous comments?

I like it, but I ran into an issue where a VDI created on one
nodes doesn't seem to to be found on another node created later.

The testcase looks something like this:

sheep -p 7000 -D /tmp/sheep/7000
collie cluster format --copies=1 -p 7000 
collie vdi create 'test-vdi' 300M -p 7000 
dd if=/dev/zero count=300M | collie vdi write test-vdi -p 7000
collie vdi read test-vdi 0 1M -p 7000 > /dev/null

sheep -p 7001 -D /tmp/sheep/7001
collie vdi read test-vdi 0 300M -p 7001 > /dev/null

and the second vdi read can't find the VDI.