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JSON vs. Protocol Buffers vs. Avro: 60% Less Latency, 80% Smaller Payloads, One Serialization Decision LinkedIn's engineering team moved their internal microservice traffic off JSON and onto Protocol

Source: Ways to Handle Schema Evolution Safely in Production Systems The first time a seemingly tiny schema change caused an outage in my team, it wasn't because the change was technically hard — it was because we had focused only on the "happy pat...
