Data migration cluster and data migration method

一种数据迁移集群及数据迁移方法

Abstract

本申请提供了一种数据迁移集群及数据迁移方法,数据迁移集群分别与第一分布式数据库和第二分布式数据库连接,数据迁移集群为分布式集群,包括集群管理节点和多个集群执行节点,每个集群执行节点与第一分布式数据库的至少一个存储节点部署在一台设备上;集群管理节点,接收由数据迁移工具启动的一个Map任务提交的数据迁移任务,并将数据迁移任务分发给各个集群执行节点;各个集群执行节点,读取与自身部署在一台设备上的存储节点的数据,并将读取的数据存储至第二分布式数据库。本申请提供的数据迁移集群及数据迁移方法使得两个分布式数据库间的数据迁移效率大大提高。
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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