Data node upgrade method and device for distributed system
A distributed system and data node technology, applied in the field of computer networks, can solve the problems of data node business service delay, long time consumption, errors, etc., to achieve the effect of smooth upgrade and avoid impact
Active Publication Date: 2020-02-18
360 TECH GRP CO LTD
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[0003] In the existing technology, when it is necessary to upgrade the data nodes of the distributed system, the general method is to shut down the data nodes and stop the external business services of the data nodes, that is to say, to take the data nodes offline and To upgrade the data node, after the upgrade of the data node is completed, start the data node, that is, put the data node online, so that the upgraded data node can provide business services to the outside world. For different master copy data, the data node needs to be restarted after the upgrade, and the master copy data of the data node needs to be re-determined. The decision-making process takes a long time, and the start and stop of the data node will cause the business service delay or error of the data node etc., thereby affecting the business services of the distributed system
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[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0021] In a distributed system, for a piece of data, multiple data nodes are used to back up the master copy data and multiple slave copy data of the data, that is to say, the master copy data and multiple slave copies of the data Data are stored on multiple different data nodes. For different data, each data node in the distributed system may store either the master copy data or the slave copy data. In general, the master copy dat...
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The invention discloses a data node upgrading method and device of a distributed system. In a distributed system, for a piece of data, multiple data nodes are respectively used to back up the master copy data and multiple slave copy data of the data. The method includes: receiving an upgrade instruction, selecting the data to be The upgraded first data node; the business load of the first data node is transferred to at least one second data node, and the second data node is backed up with slave copy data corresponding to the master copy data in the first data node; for the first data node Perform offline processing to complete the upgrade of the first data node offline, thereby realizing a smooth upgrade of the distributed system and avoiding the impact of shutdown and startup of data nodes on business services of the distributed system.
Description
technical field [0001] The invention relates to the technical field of computer networks, in particular to a data node upgrading method and device of a distributed system. Background technique [0002] Distributed storage is to disperse and store data on multiple independent devices. A distributed system is a cluster system with many data nodes, and each data node can be understood as a data storage server. When doing data storage, storing several pieces of data into corresponding data nodes is the core concept of a distributed system. [0003] In the existing technology, when it is necessary to upgrade the data nodes of the distributed system, the general method is to shut down the data nodes and stop the external business services of the data nodes, that is to say, to take the data nodes offline and To upgrade the data node, after the upgrade of the data node is completed, start the data node, that is, put the data node online, so that the upgraded data node can provide ...
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IPC IPC(8): H04L29/08H04L12/24
CPCH04L41/082H04L67/1097G06F16/00
Inventor 许瑞亮
Owner 360 TECH GRP CO LTD