David Leitner
The Rise of Reactive Microservices
#1about 3 minutes
The pitfalls of synchronous microservice communication
Synchronous calls between services create tight coupling and lead to cascading failures when downstream systems experience latency.
#2about 4 minutes
Decoupling services with asynchronous message queues
Using message queues like RabbitMQ isolates high-latency services and improves system resilience by changing from immediate creation to eventual acceptance.
#3about 4 minutes
Avoiding the entity service anti-pattern in architecture
Slicing microservices based on data entities like 'user' or 'account' creates dependencies across teams and slows down feature development.
#4about 7 minutes
Using push-based streams for data synchronization
Reactive systems push data changes through event streams, allowing services to build local read models (projections) and achieve runtime autonomy.
#5about 7 minutes
Navigating the challenges of eventual consistency
Eventual consistency involves three main challenges—divergence, variance, and latency—which can be managed with ordering, deduplication, and optimistic UIs.
#6about 5 minutes
The key benefits of building reactive systems
Reactive architectures improve resilience and enable horizontal scaling by creating autonomous services that can build real-time, push-based user interfaces.
#7about 2 minutes
Decomposing monoliths with change data capture
Change Data Capture (CDC) streams events directly from a legacy database's transaction log, enabling gradual monolith decomposition without modifying the legacy code.
#8about 6 minutes
Achieving massive throughput with sharded architectures
Sharding partitions data and processing across independent streams, enabling systems to scale horizontally and handle nearly unlimited throughput.
#9about 3 minutes
Balancing architectural complexity and business needs
Evolving from a monolith to a sharded, stream-based system adds powerful capabilities but also increases complexity, so always choose the simplest architecture that meets your requirements.
#10about 3 minutes
Answering questions on micro-frontends and data ownership
The speaker discusses how micro-frontends align with team autonomy and clarifies that while data can be copied to projections, updates must go through the owning service.
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