Capacity Planning for Data Pipelines: TB/day, Latency Budget, Cost Triangle
python
dev.to
capacity planning data pipelines is the discipline every senior DE, DE manager, and platform SRE eventually owns — the throughput math that says "1 TB/day = 12 MB/sec average but 60 MB/sec peak on a 5× spike pattern", the latency budget decomposition that turns a 500 ms p99 SLO into per-component allowances of "ingest 50 ms + queue 100 ms + process 200 ms + write 100 ms + buffer 50 ms", and the cost / speed / correctness triangle that grounds every design decision in dollars. Every DE eventually