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Data writing and capacity expansion method and device for a distributed cache system

A distributed caching and data writing technology, applied in the information field, can solve problems such as high time complexity, achieve the effects of reducing response time, improving availability, and reducing time complexity

Active Publication Date: 2021-03-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides a data writing and capacity expansion method and device for a distributed cache system to solve the existing problem of high time complexity

Method used

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  • Data writing and capacity expansion method and device for a distributed cache system
  • Data writing and capacity expansion method and device for a distributed cache system
  • Data writing and capacity expansion method and device for a distributed cache system

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Embodiment Construction

[0087] This application is applied to the distributed cache system, which can be applied to web page cache, database cache, etc. to meet users' response speed of network system. See figure 2 As shown, the distributed cache system includes N cache nodes, product operation and maintenance systems, and management nodes in the same local area network. The product operation and maintenance system is a global management device in the entire distributed cache system, which is responsible for initiating expansion requests and controlling the operational state of the distributed cache system.

[0088] The management node can be a separate application server in a distributed cache system, such as a client application server. The cache node is used to cache data that the user needs access or written. The cache node can use the Redis database or the Memcached database form. The cache node can be a physical node, or a virtual node. That is, it can be a physical node composed of a separate ser...

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Abstract

The present application discloses a data writing and expansion method and device for a distributed cache system, which are used to solve the problem of high time complexity in system expansion in the prior art. The solution disclosed in this application, on the basis of the existing technology, maintains the mapping relationship between the data hash value of the cached data and its storage address in the management node, so that when looking for the data to be migrated, according to the mapping relationship, the location The storage address corresponding to each data hash value within the data hash value range of the data to be migrated, so that the data is migrated from the storage address.

Description

Technical field [0001] The present application relates to the field of information technology, and more particularly to data writing and expansion methods for distributed cache systems, and devices. Background technique [0002] The distributed cache is a plurality of physical units located within the LAN to provide cache services. With the modern information application system (such as social networking sites or telecommunications operating systems, etc.) provides increasing services and the increase in user-oriented, the capacity of distributed cache often needs to be expanded. In addition to capacity and response time, the other key indicator for measuring distributed cache performance is a cache hits. If the hive rate is too low, the performance of the entire application system is too low, which may cause the system to crash. [0003] Many cases, when expanding the existing distributed cache cluster, the application system is required to provide services to the user. At the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/10H04L67/568
Inventor 沈彬罗奇
Owner HUAWEI TECH CO LTD