Object distribution strategy based on two-dimensional array in cloud storage

Aiming at the problem of storing the massive data on the cluster nodes securely,efficiently and evenly,a simple and efficient object distribution algorithm which supported the weight and data redundancy mechanism was put forward.The mapping relationship between the object and the node was built,and the weight of the storage node and the corresponding node in the cluster were mapped to the two-dimensional array.The quick positioning of the object copy was realized by jump Hash.In the process of positioning,the selection conflict detection mechanism was utilized to avoid the same object with different copies mapping into the same storage node.Experimental results show that the proposed algorithm has the advantages of uniform data distribution and small amount of migration.