Hierarchical indexing method based on distributed real-time database system (DRTDBS)

A distributed real-time, database technology, applied in the database field, to achieve high fault tolerance, high efficiency, and high independence

Inactive Publication Date: 2016-09-07
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing real-time databases mainly adopt centralized management. Although they can provide better management efficiency, there are still obvious defects in data access speed and data fault tolerance.

Method used

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  • Hierarchical indexing method based on distributed real-time database system (DRTDBS)
  • Hierarchical indexing method based on distributed real-time database system (DRTDBS)
  • Hierarchical indexing method based on distributed real-time database system (DRTDBS)

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Experimental program
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Embodiment 1

[0025] The invention provides a hierarchical indexing method based on a distributed real-time database, such as figure 1 As shown, the hierarchical indexing method includes:

[0026] Step 1: The central control server set in the distributed real-time database receives the data operation operation request sent by the client, extracts the tag points specified in the data operation operation request, and selects the corresponding tag points from the pre-built hash index ring list The relevant meta information of the target data storage server is sent to the client.

[0027] Step 2, the client receives the relevant meta information, extracts the IP address and communication port of the target data storage server from the relevant meta information, and sends the data to be operated including the label point to the target data storage server pointed to by the IP address through the communication port.

[0028] Step 3, the target data storage server extracts the label point, determi...

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Abstract

The invention provides a hierarchical indexing method based on a distributed real-time database system (DRTDBS), and belongs to the field of a database. The hierarchical indexing method includes the steps of acquiring a data operation request from a client; extracting tag points in the operation request; determining a target data storage server in a hash index annular list; further enabling the target data storage server to perform hierarchical indexing in a B+ tree; and after determining an operation position, performing data operation. The invention can ensure high efficiency in real-time database data storage and retrieval by using the hash index annular list, and can also allows the tag point indexing to be more independent thanks to the establishment of a separate B+ tree data index for each tag point, so that a high fault tolerance is attained among data storage servers in the distributed real-time database.

Description

technical field [0001] The invention belongs to the field of databases, in particular to a hierarchical indexing method based on a distributed real-time database. Background technique [0002] With the development of computer technology, there are more and more applications that rely on high-speed data access. Because such applications are mainly used for information collection of real-time monitoring equipment, and because the collected information has a very high collection frequency and strong timeliness, it is necessary to use a real-time database to store and manage the collected information. [0003] Existing real-time databases mainly adopt centralized management. Although they can provide better management efficiency, there are still obvious defects in data access speed and data fault tolerance. Contents of the invention [0004] In order to solve the problems of the prior art, the present invention provides a hierarchical indexing method based on a distributed re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/2477G06F16/2246
Inventor 费冬虎李也白丁学峰陆生兵
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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