~/talk

Scaling Telemetry Systems with Streaming & Serverless

Talkat NDC Melbourne 2025 · 2025-04-29..05-01· [observability, serverless]
slides:none on file

Telemetry ingestion grows from ~200k to 4 million trace spans/sec so Kafka becomes the persistent, ordered buffer with hourly consumer checkpoints to S3, partitioning by trace ID and using local NVMe on i-class instances to avoid cloud block throttling. Reads run a serverless map phase against S3 with 40,000 concurrent Lambda workers (peaks to 70–80k), 90% of queries return in ~2.5s, retries for the slow 1%, and Graviton reduces Lambda cost ~20–30%.

AI-written summary · about

  1. 0:00Introduction
  2. 3:38Streaming data systems
  3. 17:22Kafka cluster performance
  4. 26:35Streaming observability
  5. 34:01Storage and query challenges
  6. 41:45Serverless big data
  7. 50:30Streaming vs serverless
  8. 51:16Q&A
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