State o' yer WAN

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Duncan Jones

How to deal with "state" in a distributed environment

Technologie

State of yer WAN
What does “state” mean in a distributed / microservices architecture ?

Local & deterministic
* Well defined unambiguous state
* Developer’s comfort zone

“Service” level
* Bounded context
* Testable behaviour
* DDD comfort zone

“System” level
* Emergent behaviour(s)
* Is anyone comfortable here?

What can we do?
* Measure everything
OLJ 565 M
12 mph
Gary

It depends
* Measure
* Abstractions
* Process

An approach…
Atomically consistent data
Well defined boundaries
Behaviour
Process rules

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State o' yer WAN

1. State of yer WAN What does “state” mean in a distributed / microservices architecture ?

2. Local & deterministic * Well defined unambiguous state * Developer’s comfort zone

3. “Service” level * Bounded context * Testable behaviour * DDD comfort zone

4. “System” level * Emergent behaviour(s) * Is anyone comfortable here?

5. What can we do? * Measure everything OLJ 565 M 12 mph Gary

6. What can we do? * Abstractions

7. What can we do? * Process

8. It depends * Measure * Abstractions * Process

9. An approach… Atomically consistent data Well defined boundaries Behaviour Process rules