Data block storage method used for time sequence database

A technology of data blocks and databases, which is used in electrical digital data processing, special data processing applications, instruments, etc.

Inactive Publication Date: 2018-01-05
吴建凰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a data block storage method for a time seri

Method used

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  • Data block storage method used for time sequence database
  • Data block storage method used for time sequence database
  • Data block storage method used for time sequence database

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Embodiment Construction

[0024] The moving vehicle includes ID, real-time GPS and real-time speed information. The present invention will be further described in detail below in conjunction with the moving vehicle information, but not as a limitation to the present invention.

[0025] Including the following steps:

[0026] S1: if figure 1 , allocate a 100MB memory, a record needs 100 bytes, divide the 100MB memory into N memory blocks of 100 bytes, and then organize the N memory blocks in order in the form of a linked list. The linked list is called free linked list.

[0027] S2: if figure 2 , use the hash map to record the relationship between ID, start position and end position.

[0028] S3: Receive data update, first judge whether there is a current ID in the hash mapping table. No go to S4, otherwise go to S7.

[0029] S4: Determine whether the free linked list is empty, if not, go to S5, if not, go to S6.

[0030] S5: Take out the head node from the free list, and write the received ID, G...

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Abstract

The invention discloses a data block storage method used for a time sequence database. As shown in the figure 2, time sequence data is recorded by using a large continuous memory, and then files are written in the large memory, so that the throughput capacity of the time sequence database is greatly expanded. Due to frequent operations of data update and real-time data query, the large continuousmemory is operated, so that the processing efficiency is relatively ideal and the processing requirements of big time sequence data can be met. When the time sequence data is stored, indexes are stored firstly and then actual data blocks are stored, as shown in the figure 3. A record of each database in an index file is added by time, so that the specified time database can be searched for by directly using a bisection method during search, and historical data search is efficient.

Description

technical field [0001] The invention relates to the field of time-series data storage, and can be used for storing time-labeled data such as GPS, ambient temperature, humidity, wind direction, PM2.5, and the like. Background technique [0002] Time series databases are widely used in various fields, such as GPS, ambient temperature, humidity, wind direction, PM2.5 and other time-tagged data. At the same time, there are many types of time series databases, such as PTimeDb, hummingbird database, inflluxdb time series database, etc. Among them, PTimeDb is the only time series database with commercial applications in related industries, with high throughput and concurrency efficiency. However, these time-series databases have different shortcomings, such as no clearly adapted time-series data types, insufficient concurrency, insufficient throughput, and query efficiency that cannot meet certain applications. [0003] For GPS-type time-series databases, high insertion efficienc...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 吴建凰
Owner 吴建凰
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