Pedro Miguel Rainho Chaves created FLINK-7157: -------------------------------------------------
Summary: Provide support for asynchronous operations over connected streams Key: FLINK-7157 URL: https://issues.apache.org/jira/browse/FLINK-7157 Project: Flink Issue Type: New Feature Components: DataStream API Reporter: Pedro Miguel Rainho Chaves The asynchronous function provides a great way to process events in parallel, which can greatly increase the throughput. However, a user may want to process events in parallel based on a stored state created by another stream. For instance, one could have a stream of scripts (e.g. groovy scripts) and a stream of events. Processing the events by the scripts in a CoFlatMap greatly reduces the performance if those take a long time to execute, specially in cases with a high number of scripts. One could argue that increasing the parallelism of the CoFlatMap would solve the problem, however it would come at a very high resource cost. It would be nice to have a *CoAsyncFunction* which would allow one of the streams in a *connectedStream* to be processed in an asynchronous fashion. -- This message was sent by Atlassian JIRA (v6.4.14#64029)