Control connection to memcached disconnected

Install ms 1.6.5.2r-19 on node 52, 53 and 55 with replica set to 1
Load 6M keys with 2K/key to node 52
Run a load on node 52 with memcachetest
opt/memcachetest/memcachetest -h localhost:11211 -i 200000 -c 1000000 -K test_ -m 1000 -M 1500 -t 4
Add node 53 to node 52
Rebalance.
When rebalance's done, kill vbucketmigrator on node 52 and 53 few times. Current items total works as expected
Add node 55 to cluster of node 52 and 53
Rebalance.
When rebalance's done, kill vbucketmigrator on node 52, 53 and 55 few times. Current items total works as expected
When curr_items_tot completes, stop internet on node 55 (stop networking).
Fail over node 55 and rebalance
When rebalance's done, kill vbucketmigrator on node 52 and 53 few times. Then waiting to see replication running.
Then see memcached disconnect few times.
One time see curr_items and curr_items_tol go down to zero.