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Mar 4 · 9 min read · Let me start with a simple question. When a producer sends a message to Kafka, the leader broker writes it down to its local disk and sends the acknowledgment back. Is this considered done and availab
Join discussionFeb 11 · 3 min read · In my previous article, Bloom Filter: Definitely No, Probably Yes, we saw that a Bloom filter acts like a ‘magic’ toolbox to perform quick operations on large datasets to determine whether a value is certainly not in the set. However, this 'definitel...
Join discussionFeb 3 · 5 min read · In large-scale distributed systems, knowing what you don’t have is often more valuable than knowing what you do. Let’s understand with a practical example. Imagine you are building a recommendation engine for a blogging site like Hashnode or Medium, ...
Join discussionJan 22 · 4 min read · If you ask ten developers to explain the difference between concurrency and parallelism, you might get ten slightly different answers. It’s one of those fundamental concepts that is easy to grasp abstractly but tricky to visualize in practice. To und...
Join discussionMay 28, 2025 · 8 min read · 🔥 Ever tried scaling a single database past its limits? You’ll quickly encounter massive rebalance storms and downtime. While a single-server setup might handle initial workloads easily, expanding to tens or hundreds of millions of users demands dis...
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