AlexWebLab

Explore a wide range of web development topics, from JavaScript to React and beyond, and uncover valuable insights to enhance your skills.

Latest 2 articles:

Leaderless Replication and Quorums: Why the Math Is Not the Whole Consistency Story

August 4, 2026Data Systems

Leaderless databases trade one ordered write authority for parallel reads and writes. Quorum math is useful, but stale replicas, partial failures, concurrency, and repair processes determine what the system actually guarantees.

Multi-Leader Replication: When Local Writes Become Conflict Policy

August 1, 2026Data Systems

Multi-leader replication can make global and local-first software feel immediate, but it replaces one ordered write path with a product decision about causality, conflicts, and what data is allowed to win.

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