Basic Information
| Field | Details |
|---|---|
| English name | Amazon EMR |
| Full name | Amazon Elastic MapReduce |
| Chinese description | 大数据处理平台 |
| Japanese description | ビッグデータ処理 |
| Exam frequency | ⭐⭐⭐ |
| Often confused with | Glue / Athena |
In one sentence
A managed analytics platform for running big-data frameworks such as Spark and Hadoop.
Key points
- It fits large-scale custom distributed processing that needs framework control.
- It can combine S3, Glue Catalog, EC2, and Spot Instances in analytics clusters.
- Compared with Glue, EMR provides more runtime and cluster control with more operational responsibility.
Exam focus
- Spark, Hadoop, and large custom processing point to EMR.
- Choose Glue for lower-operations serverless ETL.
Common pitfalls
- Do not choose by product name alone; confirm data type, latency, control, operations, and cost constraints.
Remember
Glue favors managed ETL; EMR favors big-data framework control.