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Metadata distributed storage method applicable to cloud storage system

A technology of distributed storage and cloud storage system, applied in the field of metadata distributed storage, to reduce risks, improve security and scalability, and avoid unusable effects.

Active Publication Date: 2012-12-12
广州鼎鼎信息科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the above technical problems caused by the centralized storage of metadata: the present invention relates to a method for distributed storage of metadata suitable for cloud storage systems

Method used

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  • Metadata distributed storage method applicable to cloud storage system
  • Metadata distributed storage method applicable to cloud storage system
  • Metadata distributed storage method applicable to cloud storage system

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Embodiment Construction

[0021] see Figure 1-Figure 3 As shown, the present invention provides a metadata distributed storage method suitable for cloud storage systems. Through the distributed storage of metadata, metadata and data blocks can be mixed and stored at the same time, and have the same redundancy as data blocks. The redundancy solves the bottleneck problem caused by the centralized storage of metadata and reduces the risk of metadata damage; when more storage servers are added, the metadata can be expanded synchronously with the data storage. The method includes the following steps:

[0022] Step 1: Use the SHA-1 algorithm to perform signature calculation on the data block, and store the calculated data block. For details, see figure 1 shown;

[0023] Step 2: Mix storage of data block and metadata through mapping method.

[0024] see figure 2 and image 3 As shown, realizing the above step 3 also includes the following steps:

[0025] Step 1: Assign a unique number i to each accesse...

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Abstract

The invention provides a metadata distributed storage method applicable to a cloud storage system. The method comprises the following steps: carrying out signature operation on a data block through an SHA-1 (secure hash algorithm-1); carrying out distributed storage on the calculated data block; and carrying out mixed storage on the data block and metadata through a mapping method. With the adoption of the metadata distributed storage method applicable to the cloud storage system disclosed by the invention, the problem that the traditional metadata storage needs a special metadata server is solved, and the storage of the metadata and the storage of block data can be directly merged, so that the safety and expandability of the metadata are improved, and the problem that a whole storage network cannot be used by single point failure of the metadata is avoided.

Description

technical field [0001] The invention relates to the field of network data storage, in particular to a metadata distributed storage method suitable for a cloud storage system. Background technique [0002] The existing GFS (Google File System) file system is mainly composed of a metadata server and a data block server. The metadata server is a centralized storage. Due to the importance of metadata, the metadata server has to be re-clustered or mirrored. With the advancement of cloud storage technology, non-central distributed networks are also applied to persistent storage, but the distributed storage of metadata has become a difficult problem. There are the following technical problems in the process of centralized storage of metadata: 1) Specialized Metadata server; 2) Local metadata storage is not easy to expand: In a massive data storage environment, the local metadata capacity will expand with the growth of data volume. At this time, the overall performance, memory and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30
Inventor 严荣程魏孙鼎
Owner 广州鼎鼎信息科技有限公司
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