Data storage detection method and device and distributed storage system

A distributed storage and data storage technology, applied in the computer field, can solve the problems of data loss, data reliability cannot be guaranteed, inaccessible, etc., to achieve the effect of ensuring reliability

Active Publication Date: 2014-04-23
BEIJING QIHOO TECH CO LTD
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Problems solved by technology

During this long period of time, due to the failure of other nodes or disks, another copy is lost, wh

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  • Data storage detection method and device and distributed storage system
  • Data storage detection method and device and distributed storage system
  • Data storage detection method and device and distributed storage system

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[0026] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] See figure 2 , Which schematically shows a flowchart of a method 200 for detecting data storage according to an embodiment of the present invention. Such as figure 2 As shown, the data storage detection method according to the embodiment of the present invention includes step S210 and step S220. The method 200 starts at step S210, where each piece of data stored in the first data node in the distrib...

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Abstract

The embodiment of the invention discloses a data storage detection method and device and a distributed storage system. According to the method, all data stored in a first data node in the distributed storage system are scanned; duplicates, stored in remaining one or more second data nodes of the distributed storage system, of the data which are scanned currently are acquired, and whether all the duplicates of the data fail or not is detected. By means of the data storage detection method and device and the distributed storage system, the data with insufficient duplicates can be found in time so that the data with insufficient duplicates can be restored in time, and the reliability of the data is guaranteed.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data storage detection method, equipment and distributed storage system. Background technique [0002] Distributed storage systems, such as Cassandra, generally adopt a multi-copy distributed storage strategy to ensure data reliability through multi-copy redundant storage. For example, 3-copy storage can be used, that is, the original data is hashed and stored on one of the data nodes, and the other 2 copies are stored on other data nodes. When a disk or node fails, the other two copies can still be accessed, and the repair of the failed copy can be completed under suitable conditions. [0003] Among them, Cassandra is a typical distributed storage system with a ring structure without a central node and implemented by relying on DHT (Distributed Hash Table, Distributed Hash Table) technology. The Cassandra data storage space can be abstracted into a ring structure, and the ...

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Application Information

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IPC IPC(8): G06F11/14H04L29/08
Inventor 王锋
Owner BEIJING QIHOO TECH CO LTD
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