February 26-28, 2020
Montreal, Canada

Event-driven microservices: what can go wrong?

In the classic paper Data on the Outside versus Data on the Inside Pat Helland argued that data within a service boundary should be treated differently than data residing outside of it.

Here, I shall argue that the same applies to messages. Inside a service boundary messages are tightly coupled to the corresponding data manipulations. Outside, the world is much more hostile and less predictable and communication strategy needs to be adequate.

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Szymon Pobiega

Particular Software

Szymon works an engineer at Particular Software, the makers of NServiceBus. His main areas of expertise are Domain-Driven Design and asynchronous messaging. He is especially interested in the intersection of these two topics -- in the patterns and tools for ensuring all messages are processed exactly once and in the correct order.

Szymon is a co-author of https://exactly-once.github.io/, a site dedicated to correct message processing.

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