DATA PROCESSING METHOD IN STREAM COMPUTING SYSTEM, CONTROL NODE, AND STREAM COMPUTING SYSTEM

A stream computer system and a method for processing a data stream in a stream computing system are disclosed. In an embodiment, the method includes collecting data traffic information between each working node and other working nodes and processing speed information for each working node, determining an optimized parallelism degree for each working node according to the collected data traffic information and processing speed information and adjusting a parallelism degree of the working node according to the optimized parallelism degree of the working node.