Category: Java & Spring
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Learning Analytics at Scale: Events, Streaming & the Transactional Outbox (Part 5)
Build a reliable LMS event backbone: the transactional outbox that ends dual-write data loss, at-least-once delivery with idempotent consumers, partitioned ordering, and…
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Assessments & Real-Time at Scale: Auto-Grading, Live Classes & WebSockets (Part 4)
Build an LMS assessment + real-time tier: a deterministic auto-grading engine, exactly-once submission, and WebSocket fan-out that survives a 50,000-person live class.
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Serving Course Video at Scale: Storage, Transcoding & CDN
A production video streaming architecture for an LMS: resumable direct-to-storage uploads, an idempotent transcoding pipeline, an HLS adaptive-bitrate ladder, a CDN with…
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The Multi-Tenant LMS Backend: Data Model, Tenant Isolation & APIs (Part 2)
A production-grade multi-tenant LMS backend: choosing pool tenancy, enforcing isolation with Hibernate @TenantId and PostgreSQL Row-Level Security, modeling the data, an idempotent…
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Designing a Multi-Tenant LMS: Product, Domain & Architecture (Part 1)
Part 1 of a 15-part reference-architecture series: design a multi-tenant LMS the senior-engineer way — bounded contexts, the non-functional requirements that drive…