Method and device for building index of mass data record

A mass data and index building technology, applied in digital data information retrieval, electronic digital data processing, special data processing applications, etc., can solve problems such as inability to achieve fast positioning, and achieve the effect of fast positioning

Active Publication Date: 2011-04-20
ZTE CORP
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  • Abstract
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  • Claims
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Problems solved by technology

In the application, the system is required to support 5 million file records and 20 million chunk (

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  • Method and device for building index of mass data record
  • Method and device for building index of mass data record
  • Method and device for building index of mass data record

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Embodiment Construction

[0033] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0034] figure 1 is a flowchart of a method for establishing an index of massive data records according to an embodiment of the present invention, such as figure 1 As shown, the method mainly includes the following steps (step S102-step S106):

[0035] Step S102, when receiving a new write file request message, obtain the current system time;

[0036] In this embodiment of the present invention, for each new request for writing a file, when obtaining the current system time, the current system time from a predetermined time (for example, 0 o'clock on January 1, 1970) to the current time can be obtained. The total time elapsed, which can be recorded as: m years, n hours, and k seconds, or, m years, ...

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Abstract

The invention discloses a method and device for building an index of a mass data record, wherein the method comprises the following steps of: acquiring current system time when receiving a new file-to-be-written request message; generating an index key word of the file according to the current system time and the file identification of the file to be written requested by the file-to-be-written message; and building an incidence relation of the index key word and the file. Through the invention, the quick positioning of mass data storage can be realized.

Description

technical field [0001] The present invention relates to the field of computer and communication technologies, in particular to a method and device for establishing an index of massive data records. Background technique [0002] In the current memory database, attributes such as file name or write time are usually used as index keywords, but for the storage of massive data, indexing in this way is slow or the indexing result is not unique. For example, in the current IPTV system, stored media files are accessed through a distributed file system, and the file system uses an in-memory database to manage metadata of the file system. In the application, the system is required to support 5 million file records and 20 million chunk (CHUNK) records. If the existing indexing method is adopted, the requirement of fast positioning cannot be met. Contents of the invention [0003] The main purpose of the present invention is to provide a method and device for establishing an index of...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F17/30091G06F16/13
Inventor 王俊程宁王冲
Owner ZTE CORP
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