A powerful server and network library, including coroutine
Fancy stream processing made operationally mundane
Python Stream Processing
A network event stream processing system, in Clojure
Distributed pub-sub messaging system
Build concurrent, distributed, and resilient message-driven apps
Proto Actor - Ultra fast distributed actors for Go, C# and Java/Kotlin
Apache Spark Connector for Azure Cosmos DB
Google Cloud Dataflow provides a simple, powerful model