Amazon EMR vs AWS Lambda: What are the differences?
Developers describe Amazon EMR as "Distribute your data and processing across a Amazon EC2 instances using Hadoop". Amazon EMR is used in a variety of applications, including log analysis, web indexing, data warehousing, machine learning, financial analysis, scientific simulation, and bioinformatics. Customers launch millions of Amazon EMR clusters every year. On the other hand, AWS Lambda is detailed as "Automatically run code in response to modifications to objects in Amazon S3 buckets, messages in Kinesis streams, or updates in DynamoDB". AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.
Amazon EMR can be classified as a tool in the "Big Data as a Service" category, while AWS Lambda is grouped under "Serverless / Task Processing".
Some of the features offered by Amazon EMR are:
- Elastic- Amazon EMR enables you to quickly and easily provision as much capacity as you need and add or remove capacity at any time. Deploy multiple clusters or resize a running cluster
- Low Cost- Amazon EMR is designed to reduce the cost of processing large amounts of data. Some of the features that make it low cost include low hourly pricing, Amazon EC2 Spot integration, Amazon EC2 Reserved Instance integration, elasticity, and Amazon S3 integration.
- Flexible Data Stores- With Amazon EMR, you can leverage multiple data stores, including Amazon S3, the Hadoop Distributed File System (HDFS), and Amazon DynamoDB.
On the other hand, AWS Lambda provides the following key features:
- Extend other AWS services with custom logic
- Build custom back-end services
- Completely Automated Administration
"On demand processing power" is the primary reason why developers consider Amazon EMR over the competitors, whereas "No infrastructure" was stated as the key factor in picking AWS Lambda.
According to the StackShare community, AWS Lambda has a broader approval, being mentioned in 1023 company stacks & 613 developers stacks; compared to Amazon EMR, which is listed in 95 company stacks and 18 developer stacks.
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