Orleans Architecture Patterns
summary
Orleans exposes a virtual actor model where addressable grains auto-activate/deactivate, guarantee single-threaded execution per grain, and optionally persist state via storage providers. Common, reusable patterns here are smart-cache (grains as cached, single-writer objects that eliminate concurrent write conflicts), event sourcing with replay/snapshots and lazy or eager aggregate strategies, and virtual streams (multiplexed over Event Hubs/Kafka for queue-backed, at-least/at-most-once delivery). Example code and a patterns library live on GitHub; the platform runs at cloud scale in production (Halo, Skype) and reduces latency and storage contention.
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chapters (15)
- 0:00Intro
- 0:39Programming in the 21st Century
- 5:17Pattern: Object Storage Grain
- 10:39Pattern: Registry - Usage
- 13:47Traditional Approach to Caching
- 14:22Orleans Approach
- 15:10Types of Caches
- 17:02Smart Cache: Example
- 19:15Pattern: Event-Sourcing Smart Cache
- 30:23Pattern: Aggregate - Grain State
- 33:09Composite Pattern: Object Store
- 45:22Orleans Streaming
- 49:27Pattern: Streaming Analytics
- 50:56Pattern: State Machine
- 58:28Cross-Cutting Benefits of Orleans
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