Network file system data reading method, device, equipment and medium

A network file system and data reading technology, applied in the field of network file systems, can solve problems such as limited performance, low data reading hit rate, and low efficiency

Inactive Publication Date: 2020-05-19
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Direct io obtains data directly and synchronously from the back-end storage cluster in real time. Due to the influence of network factors, its efficiency is not high; the buffer io method generally adopts the pre-read algorithm, and puts part of the pre-read data into the cache area, and the client can read from the pre-read The cache area reads data. If there is no hit data in the data cache area, the data is read asynchronously from the back-end storage cluster. However, for scenarios with high bandwidth requirements, the performance is limited due to factors such as constraints and pre-reading algorithms, that is, only the required When the read data is pre-read data, it can be read from the preset buffer area, and the data read hit rate is low

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  • Network file system data reading method, device, equipment and medium
  • Network file system data reading method, device, equipment and medium
  • Network file system data reading method, device, equipment and medium

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0042] Currently, in the network file system, data reading is divided into direct io and buffer io. Direct io obtains data directly and synchronously from the back-end storage cluster in real time. Due to the influence of network factors, its efficiency is not high; the buffer io method generally adopts the pre-read algorithm, and puts part of the pre-read data into the cache area, and the client can read from the pre-read The cache area reads data. If there is no hit data in the da...

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Abstract

The invention discloses a network file system data reading method, a device, equipment and a medium. The method comprises the steps of obtaining a data reading command; according to the data reading command, starting a data reading process for a local preset client cache file system, and the preset client cache file system is a cache file system which is established based on the fcache technologyand used for storing network file system data; and if the target data is hit in the preset client cache file system, returning the target data. Therefore, after the data reading command is obtained, the data reading process for the local preset client cache file system is started according to the data reading command, and if the target data are hit in the preset client cache file system, the target data can be returned. Therefore, the data can be read from the preset client cache file system, and the data reading hit rate and the data reading efficiency are improved.

Description

technical field [0001] The present application relates to the technical field of network file systems, and in particular to a method, device, device, and medium for reading network file system data. Background technique [0002] In the network file system, data reading is divided into direct io and buffer io. Direct io obtains data directly and synchronously from the back-end storage cluster in real time. Due to the influence of network factors, its efficiency is not high; the buffer io method generally adopts the pre-read algorithm, and puts part of the pre-read data into the cache area, and the client can read from the pre-read The cache area reads data. If there is no hit data in the data cache area, the data is read asynchronously from the back-end storage cluster. However, for scenarios with high bandwidth requirements, the performance is limited due to factors such as constraints and pre-reading algorithms, that is, only the required When the read data is pre-read dat...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F16/13G06F16/172G06F16/178
CPCG06F16/13G06F16/172G06F16/178
Inventor顾长顺张端
OwnerLANGCHAO ELECTRONIC INFORMATION IND CO LTD