2, according to a new master a generation distribution, the basic principle is that the current distribution is how to generate, new distribuiton generate rules unchanged (p 1 or 2 p or manually write mode),
3, check to see if the new distribution is completely contained in the old distribution
(1) if the new distribution completely contained in the old distribution, as shown below, to continue the following initnodedatamap, and rebalance steps;
(2) if the completely contains no established relationship, you will need to manually write distribution mode to generate new distribution configuration information files, to make the containment relationship, otherwise, the subsequent rebalance takes redistribution,
4, confirmed that the old and new distribution contains the relationship established completely,