Posts
All the articles I've posted.
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System Design - How Database Replication Works
How database replication works: physical vs logical replication, MySQL binlog and PostgreSQL WAL streaming, replication lag, semi-synchronous commit, and the CAP trade-offs in real systems.
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LeetCode 743 Network Delay Time
Solutions for LeetCode 743, medium, tags: graph, heap, shortest path, Dijkstra, Bellman-Ford.
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LeetCode 134 Gas Station
Solutions for LeetCode 134, medium, tags: array, greedy.
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LeetCode 763 Partition Labels
Solutions for LeetCode 763, medium, tags: hash table, two pointers, string, greedy.
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LeetCode 74 Search a 2D Matrix
Solutions for LeetCode 74, medium, tags: array, binary search, matrix.
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System Design - How Distributed Tracing Works
How distributed tracing works: trace/span model, context propagation, sampling strategies, and how systems like Jaeger, Zipkin, and OpenTelemetry implement end-to-end request tracking across microservices.