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Data migration method and device of distributed storage system and electronic equipment

A technology of distributed storage and data storage, which is applied in electrical digital data processing, input/output process of data processing, instruments, etc. It can solve the problems of prolonged service stoppage, inability to complete data migration, and difficulty in estimation.

Active Publication Date: 2021-04-23
TENCENT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is not suitable for business peak periods, because data migration does not converge during business peak periods, and it is difficult to meet the conditions for data migration completion; and at the end of data migration, the database service needs to be stopped. For distributed storage systems, data migration involves many machines. As long as one of the machines has a problem, the data migration cannot be completed, resulting in extended and unpredictable service stop times

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  • Data migration method and device of distributed storage system and electronic equipment
  • Data migration method and device of distributed storage system and electronic equipment
  • Data migration method and device of distributed storage system and electronic equipment

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Embodiment Construction

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; Fully conveyed to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.

[0043] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of ...

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Abstract

The invention provides a data migration method and device for a distributed storage system and electronic equipment; wherein the system comprises a first node and a second node which are respectively used for storing data, and enables a request end to operate a route of target data to lead to the first node. The method comprises the following steps: in response to a request end sending an operation request for target data, triggering data migration, and caching an operation request queue sent by the request end before switching the route; and when the first node finishes processing the operation request for the target data accumulated before data migration, switching the route from the first node to the second node, and releasing the operation request queue to the second node. According to the embodiment of the invention, the data migration requirement in the business peak period can be met, the situation that the request end cannot accept service in the data migration process is avoided, and the consistency of data before and after data migration is ensured.

Description

technical field [0001] The present disclosure relates to the field of data storage, and in particular to a data migration method, device and electronic equipment for a distributed storage system. Background technique [0002] In the field of information technology, the storage and management of data has always been of great significance. In many cases, it is necessary to migrate data due to various business requirements (for example: expanding the capacity of the database, reducing the capacity of the database, and updating the database). [0003] The data migration scheme in the existing technology usually directly synchronizes data between the data source and the data target. After the synchronization reaches a certain ratio, the database service is temporarily stopped, and then the remaining data is continued to be synchronized and the route is switched to realize data migration. This method is not suitable for business peak periods, because data migration does not conve...

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0647G06F3/067
Inventor 张世维李陆彪杨绍鹏洪利平
Owner TENCENT TECH (SHENZHEN) CO LTD
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