Data migration cluster and data migration method



The invention provides a data migration cluster and a data migration method. The data migration cluster is connected with a first distributed database and a second distributed database respectively. The data migration cluster refers to a distributed cluster which comprises a cluster management node and multiple cluster execute nodes. Each cluster execute node and at least one storage node of the first distributed database are deployed on one device. The cluster management node receives a task of data migration submitted by a Map task drove by the data migration instrument and distributes the task of data migration to each cluster execute node. Each cluster execute node reads the data of the storage node which is in the same device with the cluster execute node and stores the read data into the second distributed database. The data migration cluster and the data migration method have the advantages of greatly improving the efficiency of data migration between two distributed databases.




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