Resolve Hotspots and Load Imbalance Problem in Event Stream Processing System

Event stream processing is the system which uses the processing element to process the data in streams of an application. The processing element (PE) is the computing unit that can handle and compute the metadata in the stream queue. However, there are two problems. First problem is that hotspots maybe happen when applications run in cluster environment; the second problem is load imbalance in the cluster when hotspots appear in that system. Therefore, in this paper, we mainly research how the hotspots happen and how to resolve the imbalance problem caused by hotspots.