We are using Aeron as the underlying transport in the new remoting implementation for Actor messages. The Aeron transport is based on UDP but it provides pretty much the same guarantees as TCP when it comes to message order and delivery. It is focused at performance and is more efficient than TCP. Artery is designed from the ground up to support high-throughput in the magnitude of 1 million messag
Instant Messaging at LinkedIn: Scaling to Hundreds of Thousands of Persistent Connections on One Machine Coauthor: Cliff Snyder We recently introduced Instant Messaging on LinkedIn, complete with typing indicators and read receipts. To make this happen, we needed a way to push data from the server to mobile and web clients over persistent connections instead of the traditional request-response par
How did Paypal take a billion hits a day system that might traditionally run on a 100s of VMs and shrink it down to run on 8 VMs, stay responsive even at 90% CPU, at transaction densities Paypal has never seen before, with jobs that take 1/10th the time, while reducing costs and allowing for much better organizational growth without growing the compute infrastructure accordingly? PayPal moved to a
Systems don't come alone. In the modern world of microservices and cloud deployment, new components must interact with legacy systems, making integration an important key to success. Reactive Streams give us a technology-independent tool to let these heterogeneous systems communicate without overwhelming each other. The Alpakka project is an open source initiative to implement stream-aware, reacti
Akka in Action is a comprehensive tutorial on building message-oriented systems using Akka. The book takes a hands-on approach, where each new concept is followed by an example that shows you how it works, how to implement the code, and how to (unit) test it. about the technology Akka makes it relatively easy to build applications in the cloud or on devices with many cores that efficiently use the
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