Note: Balance of 2193 indicates you should push this ring, wait at least 1 hour, and rebalance/re...

When add new swift storge node,and rebalance the ring,it Note: Balance of 2193 indicates you should push this ring, wait at least 1 hour, and rebalance/repush,that means  copy the ring out to the nodes, wait an hour, rebalance, and copy the new ring out. The reason for this is that only one replica of a given partition will move at a time, and this is done to ensure availability of your data even during a rebalance. To see why, imagine that there were no such protection; if all three replicas of a partition moved in a rebalance, then objects in that partition would be unavailable until the replicators moved the objects to their new homes.