Understanding Garbage Collection in the HotSpot JVM: A Comparison of Algorithms
The Java Virtual Machine (JVM) has always been a powerful abstraction layer, and its memory management system — particularly garbage collection (GC) — is a c...
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Immutable Types in Scala: Why They Matter and How to Use Them Right
In Scala, immutability is not just a style — it’s a principle that shapes how we write correct, composable, and predictable code. Immutable types prevent who...
Git as a Distributed System: Internals, Object Graphs, and Why the DAG Matters
When we use Git every day, it feels simple: git commit, git push, git merge. But underneath the CLI, Git is one of the most interesting and elegant distribut...
Jepsen and the Hard Truth About Fault Tolerance in Distributed Systems
It’s June 30, 2016, and building distributed systems still feels more like an art than an exact science. Despite advances in consensus algorithms, databases,...
Understanding YARN’s Resource Manager: Scheduling Policies at Scale
As of June 22, 2016, Apache Hadoop YARN (Yet Another Resource Negotiator) continues to power many of the world’s largest data platforms. At the heart of YARN...