May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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EMR's architecture
Hadoop's core feature is data locality, that is, taking compute to where the data is. AWS disrupts this concept by separating storage and compute. AWS has multiple storage options, including the following:
- Amazon S3: S3 is general-purpose object storage.
- Amazon Redshift: This is a distributed cloud data warehouse.
- Amazon DynamoDB: This is a NoSQL database.
- Amazon Aurora: This is a cloud-based relational database.
Amazon S3 is the cheapest and most reliable cloud storage available, and this makes it the first choice, unless there is a compelling reason not to do so. EMR also supports attaching elastic block storage (EBS) volumes to compute instances (EC2) in order to provide a lower latency option.
Which option to choose ...
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