Method, device and system for carrying out capacity expansion and shrinkage adjustment on operator node

• Main Authors: WANG DONGXU, LIANG YI, CHEN TIANYI, YANG JIANZHANG, ZHOU JIAYING, RUAN RUOYI, ZUO LINGXUAN, YU ZHONGCHUN
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The embodiment of the invention provides a method, a device and a system for carrying out capacity expansion and shrinkage adjustment on operator nodes. In the method, in response to a to-be-adjusted concurrent operator node determined according to a real-time data stream, a control node constructs an operator node topological graph according to upstream and downstream operator nodes of the to-be-adjusted concurrent operator node; the control node sends graph state updating information aiming at the operator node to each operator node with adjustment in the operator node topological graph, so that each operator node with adjustment is updated and connected; the control node sends adjustment identification information to a source operator node in the operator node topological graph; at each operator node, the adjustment identification information is acquired according to the connection between the operator node and the upstream and downstream operator nodes, and the state adjustment of the operator nodes is pe