The new remoting implementation for actor messages was released in Akka 2.4.11 two months ago. Artery is the code name for it. It’s a drop-in replacement to the old remoting in many cases, but the implementation is completely new and it comes with many important improvements such as: Focused on high-throughput, low-latency communication, mostly allocation-free operation Isolation of internal contr
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
Dear Hakkers, we—the Akka committers—are very pleased to announce Akka Streams & HTTP 2.0. This major update represents the culmination of an inspiring community push after our 1.0 release more than five months ago. The changes we made can be classified into two categories: We streamlined the API in response to user feedback—both direct and indirect—by offering a well-rounded set of combinators fo
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