Amazon Elastic MapReduce
Developer Guide (API Version 2009-03-31)
« PreviousNext »
View the PDF for this guide.Go to the AWS Discussion Forum for this product.Go to the Kindle Store to download this guide in Kindle format.Did this page help you?  Yes | No |  Tell us about it...

How Does Amazon EMR Hadoop Differ from Apache Hadoop?

The AWS version of Hadoop installed when you launch an Amazon EMR cluster is based on Apache Hadoop, but has had several patches and improvements added to make it work efficiently on AWS. Where appropriate, improvements written by the Amazon EMR team have been submitted to the Apache Hadoop code base. For more information about the patches applied to AWS Hadoop, see Hadoop Patches Applied in Amazon EMR.