# EMR

[Document](https://docs.aws.amazon.com/emr/?icmpid=docs_homepage_analytics) | [Note](https://gist.github.com/PhuongNHT1/caaf838f6a44fc8cfae5351970891a9f#amazon-emr) |

## Overview

* Helps create **Hadoop cluster** (<mark style="color:red;">big data</mark>). A cluster can be made of hundreds of EC2 instances.
* Process vast amount of data using **Apache Hadoop** or **Apache Spark** framework across dynamically scalable Amazon EC2 instances.
* Take care of all
  * provisioning
  * configuration

### Benefits

* Auto scaling
* Can integrate with Spot instances.
* Can interact with data in AWS data stores such as:

  * Amazon S3

  <figure><img src="/files/2sRYv9HUuib9xlGlADxb" alt="" width="375"><figcaption><p>Integrate with S3 &#x26; Redshift</p></figcaption></figure>

  * Amazon DynamoDB.

### Use cases

* *<mark style="color:red;">Big data framework</mark>*
* Web indexing
* ML
* Data processing

## Type of node

### Master node

### Core node

### Task node


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