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Method suitable for safely migrating data between storage clouds

A data security and storage cloud technology, applied in the field of data security migration system, can solve the problem of inability to dynamically balance the load of business nodes

Inactive Publication Date: 2011-08-31
PEKING UNIV
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Problems solved by technology

[0015] The publication number is CN101442435A, and the patent titled "distributed system business data management method, device and distributed system" discloses a distributed system business data management method, which solves the problem that the distributed system cannot dynamically The problem of balancing the load among various business nodes

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  • Method suitable for safely migrating data between storage clouds
  • Method suitable for safely migrating data between storage clouds

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Embodiment Construction

[0056] The present invention is developed based on the distributed file system project HDFS in the Hadoop open source project.

[0057] HDFS is a distributed file system running on a cluster of cheap machines. The usage mode is still the classic C / S mode: customers request the cluster to provide services, and the cluster responds to the customer's request as a whole—where the files are stored and How to store is transparent to the user. The advantage of HDFS is that it can store large-capacity files and perform redundant operations on files to make it possible to build clusters using cheap machines.

[0058]The nodes in the HDFS cluster have different functions, and they are mainly divided into two roles: master and slave. There are four main functions of the nodes in the present invention: managing file system directories, storing data, scheduling parallel tasks, and executing tasks. According to the functions of the nodes, the nodes are called NameNode, DataNode, JobTracke...

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Abstract

The invention discloses a method suitable for safely migrating data between storage clouds, belonging to the field of a distributed file system. The method comprises the following steps: SSL (Security Socket Layer) connection is set up between a source cluster and a destination cluster; central nodes of the source cluster and the destination cluster generate a secret key through the SSL connection, and the secret key is transmitted to a data node executing the data migration; an approved migration privilege bill is encrypted by the central node of the destination cluster, is then transmitted into the data node executing the data migration in the source cluster, and is recorded; the encrypted migration privilege bill is transmitted to the central node of the destination cluster through the data node executing the data migration to be verified, then the central node of the destination cluster transmits a destination data node address to the data node executing the data migration; and the data node executing the data migration encrypts data to be migrated by the secret key and then transmits the data to the destination data node. The method greatly improves the safety of the data migration between the storage clouds.

Description

technical field [0001] The invention proposes a method for providing security functions for data migration between storage clouds, and realizes a data security migration system under the cloud storage environment with HDFS as the basic structure. The technical field of the present invention relates to distributed file system and cluster parallel computing technology. Background technique [0002] The object of the present invention is the process of data migration between two different storage clouds. By combining and using a variety of mature security technologies, such as SSL, symmetric encryption, hashing, message authentication codes, etc., it is suitable for storage between cloud The security policy of the data migration process, and implemented multiple modules supporting this security policy on the storage cloud built on the basis of HDFS, and finally obtained a system that completes the task of safe data migration between storage clouds. [0003] At present, the sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 杨雅辉沈晴霓张力哲禹熹吴尉泷王丹丹龙敏
Owner PEKING UNIV
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