Три раза ALLOW: в ERP оказалось 120 вместо разрешённых 100
Человек разрешил workflow заказать не больше 100 единиц товара. Три запроса по 40 прошли через слой авторизации и получили ALLOW. В ERP в итоге оказ…
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Thread-Safe Counter in Java: Fix Your First Concurrency Bug in Machine Coding
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Managing Goroutine Lifecycle and Context Cancellation in Web Servers: Effective Strategies for Control
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Kotlin Coroutines vs Java Virtual Threads: A Comprehensive Comparison for Modern Backend Development
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Take it out of the map: keeping a shared session store lock-free during slow work
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Swift search: cancellation needs an ownership check
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Store Load Reordering: x86 vs ARM64, and the Bug Intel Was Hiding
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Why Your Counter Shows 847 Instead of 1000 (Race Conditions, Explained)
Two threads each increment a shared counter 1,000 times. You expect 2,000. You run it — and get 1,847. Where did the missing increments go? I animat…
Три воркера n8n ждали четвёртого: как мы получили взаимную блокировку из обычного HTTP-запроса
30 августа в 22:01 МСК один из наших диалоговых воркфлоу упал на ноде Chat Logic . В журнале исполнения 928811 осталось короткое сообщение: Читать д…
Java Concurrency: Threads
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Swift 6 turned working code into a compile error and iOS devs are furious
Everything was working perfectly fine in your application for multiple years. Then one day a simple configuration change of a flag resulted in over…
Completion Is an Ownership Boundary
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How Java's Concurrency APIs Fit Together
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Java 21 Virtual Threads: Is the Thread Pool Era Over?
Java 21 officially introduces virtual threads (Project Loom), making high-concurrency programming simpler than ever. What Are Virtual Threads Virtua…
The context you passed is not the context that cancels
Two failure modes, opposite in effect, same root cause. Both compile, and both are quiet in development. Failure one: the work dies with the request…
Как мы заменили 30-минутный polling на IMAP IDLE и построили маленькую распределённую систему
Когда-то наш почтовый загрузчик был обычным методом с @Scheduled . Раз в 30 минут он подключался к ящикам, искал новые вложения и запускал их обрабо…
Virtual threads didn't scale your app. They just moved the crash to your database.
When Java 21 was released with virtual threads, everyone celebrated, including myself. Then someone's app fell over at 2AM. And the crash wasn't whe…
Goish: พอร์ตรันไทม์ของ Go ทั้งตัวลงใน no_std Rust
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Concurrent Resource Scheduler v1.2.3: Sharded Priority Heaps Under Concurrent Load
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I Built a Concurrent Resource Scheduler in Go Using Sharded Priority Heaps
Support on GitHub: github.com/phero20/concurrent-resource-scheduler (Give it a star if you find it useful!) View Docs: pkg.go.dev/github.com/phero20…
Mastering the Producer-Consumer Pattern in Java LLD: The Restaurant Kitchen
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Can an Interpreted Language Really Do Multithreading?
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Stop Making Your Agent Wait: Branch Prediction for Tool Calls
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Go 1.25 testing/synctest: No More Flaky Concurrent Tests
Three green tests locally, two red on CI. The outcome depends on how busy the build server is that day. This isn't a logic bug — it's a time.Sleep t…
Stop Using Round-Robin: High-Throughput Java Virtual Thread Routing with P2C
Stop Using Round-Robin: High-Throughput Java Virtual Thread Routing with P2C Virtual threads allow Java microservices to comfortably run 50,000 conc…
Thread Confinement in Java: Master High-Performance Concurrency in LLD Interviews
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