Lease Coordination Under Serializable Isolation in CockroachDB
Multi-region systems that rely on entity-scoped write coordination often reach a scale where correctness is no longer the primary challenge; predictability under sustained concurre...
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Multi-region systems that rely on entity-scoped write coordination often reach a scale where correctness is no longer the primary challenge; predictability under sustained concurre...
Introduction: Why Go Concurrency Is Special I've debugged goroutine leaks at 3 AM, fixed race conditions that only appeared under load, and watched a single missing defer statement...
Originally appeared on Carmine Paolino.Since I wrote about async Ruby and patched Solid Queue to support fibers, people keep asking the same questions. What happens when a fiber bl...
It was a normal Tuesday until someone dropped a real-time dashboard link into a big team group. A few people opened it, and then a few hundred did. Within minutes, a slack pattern...
JDBC is still blocking. Hibernate 6 added reactive support through Vert.x. jOOQ is reviewing its ThreadLocal usage for Loom compatibility. Spring Data JDBC gained first-class Intel...
In modern distributed systems, it is common to face the "dual-write" problem. This occurs when a service needs to perform two actions simultaneously: mutate state in a database and...
Virtual threads gave Java scale. Structured concurrency gives it correctness. Here is why the second half of Project Loom quietly matters more — and what JEP 505 / JEP 525 actually...
A system that crashes is easier to fix than one that silently produces wrong results. The dual write problem is exactly that kind of bug. It is surprisingly common and often misund...
Conflict-free Replicated Data Types let replicas diverge freely and still guarantee eventual convergence. Here is the math behind why that works, a tour of the most useful types, a...
Distributed systems rarely struggle because of storage engines. They struggle because of coordination. We were operating a high-throughput microservice on Kubernetes backed by Azur...
What Java 21–26’s concurrency model actually changes at the architecture level. Not a feature tour — a genuine examination of the tree-of-lifetimes model, which bugs become structu...
A two-agent Python service ran fine in tests. Two concurrent users hit it and one user's search results showed up in the other user's response. The pattern looked safe. The Rust po...
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