Cost Optimization

Concepts: paCostOptimization

What They Want to Hear 'I optimize cost at three levels. Storage: use columnar formats (Parquet) and compression to reduce data size. Lifecycle policies move cold data to cheaper storage tiers. Compute: right-size clusters based on actual usage, not peak capacity. Use spot instances for non-critical batch jobs at 60-70% discount. Query: predicate pushdown and partition pruning avoid reading unnecessary data, which reduces both compute time and I/O costs.' That is the answer. Three levels: storage, compute, query.