Abstract

 This tutorial introduces participants to the fundamentals and advanced concepts of integrating sensor and actor systems within the Internet of Things (IoT) through hands-on experience with small, portable ad-hoc networks. We will learn to create and manage our own IoT networks by utilizing several ESP32 and ESP8266-based devices connected to various actors and sensors alongside easily configurable IoT edge network set-ups. Using Node-RED for data flow and event-based integration, we will orchestrate the systems. Simple dashboard and database connectivity options in Node-RED will help us build IoT applications and workflows without the complexity of traditional programming environments.

Abstract

 Developing applications in a microservice architecture is hard. For all the benefits that it brings over monolithic application architectures, they expose developers to all sorts of tough distributed systems problems, making it non-trivial to build applications that are consistent, scalable, and resilient. In this session, we explain what Durable Execution is and how it solves these issues. We share ideas from Restate, a Durable Execution Engine that manages crucial aspects like reliable messaging, durable timers, fail-over and consistent state. Restate implements low-latency durable execution with a partitioned command log. The runtime pushes invocations to services and functions, journals the execution, and handles retries and fail-over. In this tutorial, we'll implement an event-driven application with Restate to give you a practical understanding of Durable Execution and how it works.

Abstract

 Soon, there will be more data produced outside the cloud than inside. This requires new systems that can holistically optimize the processing for so-called sensor-fog-cloud environments. In this tutorial, we present NebulaStream, the first system designed for this environment. We will highlight research challenges, outline system internals, and provide hands-on experiences to the attendees to enable future researches to use NebulaStream as a framework to  try out their own ideas and benefit from its unique features.