Integrating microservices and taming distributed systems is hard. In this talk I will present three challenges I’ve observed in real-life projects and discuss how to avoid them.
1. Communication is complex. With everything being distributed failures are normal so you need sophisticated failure handling strategies (e.g. stateful retry).
2. Asynchronicity requires you to handle timeouts. This is not only about milliseconds, systems get much more resilient when you can wait for minutes, hours or even longer.
3. Distributed transactions cannot simply be delegated to protocols like XA. So you need to solve the requirement to retain consistency in case of failures.
I will not only use slides but also demonstrate concrete source code examples available on GitHub.
Bernd Rücker has helped automating highly scalable core workflows at global companies including T-Mobile, Lufthansa and Zalando. He has contributed to various open source workflow engines. He is co-founder and developer advocate of Camunda, an open source software company reinventing workflow automation. He co-authored “Real-Life BPMN,” a popular book about workflow modeling and automation, regularly speaks at conferences and writes for various magazines. He currently focuses on new workflow automation paradigms that fit into modern architectures around distributed systems, microservices, domain-driven design, event-driven architecture and reactive systems.
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