| 摘要 |
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for stream processing with contextual data affinity. One of the methods includes receiving an event at a computing node of a stream processing system that includes one or more computing nodes and data representing a topology of functional modules. At a particular functional module of the topology, an operation that requests access to context data related to the event is determined based on a data attribute of the event. The context data is partitioned among the one or more computing nodes. Context data related to the event is obtained from the computing node. The operation of the particular functional module is processed using the context data, and a modified event is generated. The modified event is provided to a subsequent functional module according to the topology of functional modules. |
