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SYSTEMS AND METHODS OF DISTRIBUTED DATA STORAGE USING MULTI-LAYERS CONSISTENT HASHING
SYSTEMS AND METHODS OF DISTRIBUTED DATA STORAGE USING MULTI-LAYERS CONSISTENT HASHING
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机译:使用多层的分布式数据存储系统和方法一致散列
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摘要
Disclosed is a systems and methods of distributed data storage using multi-layers consistent hashing comprising: a plurality of storage nodes providing data storage and redundancy protection; a plurality of management nodes maintaining the properties of the storage nodes and mapping information from virtual groups to storage nodes; a plurality of monitor nodes maintaining the state of storage nodes and handling the changes of states of storage nodes including joining, decommissioning and failure; and one or more clients providing entries for applications or users to access the storage system. The storage nodes is in a hierarchical tree arrangement, and each storage node in each layer of the tree is allocated with a plurality of identities and configured for remaining hash space with consistency. Instead of sharing one hash space among all storage nodes, there are a plurality of hash spaces kept consistent in each layer of the storage hierarchical tree.
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