2h ago · 4 min read · One of the most common misunderstandings when debugging Java applications running on the JVM is this: High memory usage does not necessarily mean there is a memory leak. Many engineers immediately s
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11h ago · 10 min read · It’s Tuesday stand up. Someone asks about a small UI fix. A senior engineer sighs — “We can’t. The payment team has a release Thursday, we share the same pipeline.” Everyone nods. Nobody is surprised.
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1d ago · 21 min read · TLDR: Design a URL shortener like TinyURL or Bitly. This article now follows your system design interview template flow: use cases, requirements, estimations, design goals, HLD, and design deep dive. TLDR: A URL shortener converts long links into com...
Join discussion1d ago · 14 min read · TLDR: Stream pipelines succeed when event-time semantics, state management, and replay strategy are designed together — and Kafka Streams lets you build all three directly inside your Spring Boot service. Stripe's real-time fraud detection processes...
Join discussion17h ago · 11 min read · Backend systems revolve around data. User accounts, payments, orders, logs, analytics, permissions — almost everything a backend service does eventually becomes data stored somewhere. Because of that,
Join discussion1d ago · 14 min read · TLDR: A service mesh intercepts all service-to-service traffic via injected Envoy sidecar proxies, letting a platform team enforce mTLS, retries, timeouts, and circuit breaking centrally — without changing application code. Reach for it when cross-te...
Join discussion1d ago · 14 min read · TLDR: A Saga replaces fragile distributed 2PC with a sequence of local transactions, each backed by an explicit compensating transaction. Use orchestration when workflow control needs a single brain; use choreography when services must stay loosely c...
Join discussion1d ago · 12 min read · TLDR: Microservices get risky when teams distribute writes without defining how business invariants survive network delays, retries, and partial failures. Patterns like transactional outbox, saga, CQRS, and event sourcing exist to make those rules ex...
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