AWS EMR Big Data
AWS EMR runs distributed data processing on clusters. You define job flow (Hadoop, Spark, Presto), upload data to S3, EMR processes it in parallel across worker nodes. Mastery means understanding Spark SQL, RDD/DataFrame operations, job tuning (partition count, memory allocation), and cost optimization. Learning path: distributed computing concepts (2 weeks) → Spark fundamentals (3 weeks) → EMR setup (2 weeks) → tuning + cost optimization (3 weeks).
什麼是 AWS EMR Big Data
AWS EMR (Elastic MapReduce) is a managed cluster service for distributed data processing. You specify cluster size, choose frameworks (Spark, Hadoop, Presto, Hive), submit jobs, and EMR handles scheduling across worker nodes. Data lives on S3; clusters process it in parallel; results go back to S3. EMR is for processing terabytes to petabytes of data. For smaller datasets, Athena is simpler.
💰 各地區薪資
| 地區 | 初級 | 中級 | 高級 |
|---|---|---|---|
| USA | $90,000 | $150,000 | $220,000 |
| UK | £54,000 | £90,000 | £130,000 |
| EU | €60,000 | €100,000 | €150,000 |
| CANADA | CA$95,000 | CA$160,000 | CA$230,000 |
🎓 認證
🎯 使用 AWS EMR Big Data 的職業
❓ 常見問題
Should I use EMR or Databricks?
What's the difference between Hadoop and Spark?
When should I use EMR vs. Athena?
How much does EMR cost?
Can I use Jupyter in EMR?
What's the best cluster size?
Is EMR suitable for production?
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