Orhun Parmaksız

🎤 On Monday, June 16, our very own Gülçin Yıldırım Jelínek took the stage at Berlin Buzzwords to deliver her well-known talk: "Anatomy of Table-Level Locks in PostgreSQL" 🧠🗄️ In the talk, Gülçin explains how PostgreSQL uses Multi-Version Concurrency Control (MVCC) to avoid many of the traditional locking issues seen in databases. Instead of modifying rows in place, PostgreSQL creates new row versions. This allows reads and writes to happen simultaneously without blocking each other. 🚦✅ But MVCC doesn’t eliminate locking entirely. Even simple reads still acquire lightweight locks on database objects like tables, types, and views. And when it comes to DDL operations (such as ALTER TABLE or VACUUM FULL), PostgreSQL needs stronger locks that can block other operations including DML or even plain SELECT queries. Gülçin walks through the nuances of: - Lock levels in PostgreSQL and how they affect concurrent access - How different DDL operations introduce different locking behavior - Real-world examples of lock contention in production systems - Why it's essential to understand locking when modifying schemas in busy environments And then, she introduces pgroll, our open-source reversible schema migration tool built for zero-downtime deployments. With an architecture inspired by the expand/contract pattern, pgroll enables teams to make schema changes safely, even in high-traffic production databases. We’re proud of Gülçin for continuing to share her expertise with the broader community. Her talk is packed with insights for DBAs, engineers, and anyone who’s ever nervously typed ALTER TABLE in production. 😅🛠️ The full talk recording is now live! 📽️ https://lnkd.in/eB3ibVCX Huge thanks to the Berlin Buzzwords organizers for putting on such a great event and for supporting the open-source and database communities. 🙌

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The biggest misconception in the content delivery world? That CDN is a commodity. Serkan Sevim from Medianova couldn't disagree more. In this clip, he explains why 20 years of deep, dedicated focus is still required to perfect low-latency content delivery. He argues that high-performance CDN is a specialization, not a generic tool, and that showing customers the real data on buffering, errors, and unhappy users is the only way to prove its value. Listen as they decode the future of Content delivery:https://lnkd.in/gpyCDhck #CDN #ContentDeliveryNetwork #Medianova #TechPodcast #LowLatency #DigitalMedia #MiddleEastTech

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We’ve been exploring Go-based backend patterns lately, and I came across a great post by Murat Demircion why Go + gRPC has become such a powerful combination for modern microservice architectures. He breaks down how gRPC, built on HTTP/2 and Protocol Buffers, enables strongly typed, high-performance communication between services — and how Go’s lightweight concurrency model makes it a natural fit. The result: fast, reliable, and maintainable systems that scale beautifully. What I really like about his take is that it goes beyond the basics — touching on production-ready aspects like interceptors, authentication, observability, and streaming. It’s a reminder that great backend architecture isn’t just about protocols, but about thoughtful design, monitoring, and trust between services. For anyone working with distributed systems, it’s worth a read — and a good nudge to revisit whether REST is always the right tool for the job. #GoLang #gRPC #Microservices #Backend https://lnkd.in/dgmGn79h

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Cheer Games, a Barcelona-based mobile gaming studio, has raised $4.5M in Pre-Seed funding to accelerate its game development efforts. The round was led by Makers Fund, with participation from Play Ventures and a group of angel investors. Founded by CEO Emre Gercel, CPO Berkay Ozturk, CTO Ertan Ünver, and CMO Kutay Koralturk, Cheer Games focuses on developing casual puzzle games for mobile platforms aimed at engaging global audiences. The fresh capital will support the development of its upcoming slate of games and help expand the company’s headquarters in Barcelona as it scales its team and production capabilities. The investment highlights continued confidence in mobile gaming startups building next-generation casual gaming experiences. #CheerGames #GamingStartup #MobileGaming #GameDevelopment #StartupFunding #PreSeed #GamingIndustry #CasualGames #BarcelonaStartups #VentureCapital #GameStudio

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