Amazon Elastic MapReduce
Amazon EMR Release Guide

About Amazon EMR Releases

This document provides information about an Amazon EMR 4.x software releases. A release is a set of software applications and components which can be installed and configured on an Amazon EMR cluster. Amazon EMR releases are packaged using a system based on Apache BigTop, which is an open source project associated with the Hadoop ecosystem. In addition to Hadoop and Spark ecosystem projects, each Amazon EMR release provides components which enable cluster and resource management, interoperability with other AWS services, and additional configuration optimizations for installed software.


Each Amazon EMR release contains several distributed applications available for installation on your cluster. Amazon EMR defines each application as not only the set of the components which comprise that open source project but also a set of associated components which are required for that the application to function. When you choose to install an application using the console, API, or CLI, Amazon EMR installs and configures this set of components across nodes in your cluster. The following applications are supported for this release: Ganglia, Hadoop, HBase, HCatalog, Hive, Hue, Mahout, Oozie-Sandbox, Pig, Presto-Sandbox, Spark, Sqoop-Sandbox, Zeppelin-Sandbox, and ZooKeeper-Sandbox.

For information about applications and their associated components, see the following sections:

Sandbox Applications

Sandbox applications provide early access to software that is not presently ready for a generally available release in Amazon EMR. You configure sandbox applications through the configuration API provided with Amazon EMR. For more information, see Amazon EMR Sandbox Applications.


The Amazon EMR releases include various components that can be installed by specifying an application which uses them. The versions of these components are typically those found in the community. Amazon EMR makes an effort to make community releases available in a timely fashion. However, there may be a need to make changes to specific components. If those components are modified, they have a release version such as the following:


As an example, assume that the component, ExampleComponent1, has not been modified by Amazon EMR; the version is 1.0, which is the community version. However, another component, ExampleComponent2, is modified and its Amazon EMR release version is 1.0.0-amzn-0.

There are also components provided exclusively by Amazon EMR. For example, the DynamoDB connector component, emr-ddb, is provided by Amazon EMR for use with applications running on Amazon EMR clusters. Amazon components have just one version number. For example, an emr-ddb version is 2.1.0. For more information about using Hive to query DynamoDB and an example, see Amazon EMR Hive Queries to Accommodate Partial DynamoDB Schemas.

The following components are included with Amazon EMR:

emr-ddb3.0.0Amazon DynamoDB connector for Hadoop ecosystem applications.
emr-goodies2.0.0Extra convenience libraries for the Hadoop ecosystem.
emr-kinesis3.1.0Amazon Kinesis connector for Hadoop ecosystem applications.
emr-s3-dist-cp2.3.0Distributed copy application optimized for Amazon S3.
emrfs2.6.0Amazon S3 connector for Hadoop ecosystem applications.
ganglia-monitor3.7.2Embedded Ganglia agent for Hadoop ecosystem applications along with the Ganglia monitoring agent.
ganglia-metadata-collector3.7.2Ganglia metadata collector for aggregating metrics from Ganglia monitoring agents.
ganglia-web3.7.1Web application for viewing metrics collected by the Ganglia metadata collector.
hadoop-client2.7.2-amzn-0Hadoop command-line clients such as 'hdfs', 'hadoop', or 'yarn'.
hadoop-hdfs-datanode2.7.2-amzn-0HDFS node-level service for storing blocks.
hadoop-hdfs-library2.7.2-amzn-0HDFS command-line client and library
hadoop-hdfs-namenode2.7.2-amzn-0HDFS service for tracking file names and block locations.
hadoop-httpfs-server2.7.2-amzn-0HTTP endpoint for HDFS operations.
hadoop-kms-server2.7.2-amzn-0Cryptographic key management server based on Hadoop's KeyProvider API.
hadoop-mapred2.7.2-amzn-0MapReduce execution engine libraries for running a MapReduce application.
hadoop-yarn-nodemanager2.7.2-amzn-0YARN service for managing containers on an individual node.
hadoop-yarn-resourcemanager2.7.2-amzn-0YARN service for allocating and managing cluster resources and distributed applications.
hbase-hmaster1.2.0Service for an HBase cluster responsible for coordination of Regions and execution of administrative commands.
hbase-region-server1.2.0Service for serving one or more HBase regions.
hbase-client1.2.0HBase command-line client.
hbase-rest-server1.2.0Service providing a RESTful HTTP endpoint for HBase.
hbase-thrift-server1.2.0Service providing a Thrift endpoint to HBase.
hcatalog-client1.0.0-amzn-4The 'hcat' command line client for manipulating hcatalog-server.
hcatalog-server1.0.0-amzn-4Service providing HCatalog, a table and storage management layer for distributed applications.
hcatalog-webhcat-server1.0.0-amzn-4HTTP endpoint providing a REST interface to HCatalog.
hive-client1.0.0-amzn-4Hive command line client.
hive-metastore-server1.0.0-amzn-4Service for accessing the Hive metastore, a semantic repository storing metadata for SQL on Hadoop operations.
hive-server1.0.0-amzn-4Service for accepting Hive queries as web requests.
hue-server3.7.1-amzn-6Web application for analyzing data using Hadoop ecosystem applications
mahout-client0.11.1Library for machine learning.
mysql-server5.5MySQL database server.
oozie-client4.2.0Oozie command-line client.
oozie-server4.2.0Service for accepting Oozie workflow requests.
presto-coordinator0.143Service for accepting queries and managing query execution among presto-workers.
presto-worker0.143Service for executing pieces of a query.
pig-client0.14.0-amzn-0Pig command-line client.
spark-client1.6.1Spark command-line clients.
spark-history-server1.6.1Web UI for viewing logged events for the lifetime of a completed Spark application.
spark-on-yarn1.6.1In-memory execution engine for YARN.
spark-yarn-slave1.6.1Apache Spark libraries needed by YARN slaves.
sqoop-client1.4.6Apache Sqoop command-line client.
webserver2.4Apache HTTP server.
zeppelin-server0.5.6-incubatingWeb-based notebook that enables interactive data analytics.
zookeeper-server3.4.8Centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
zookeeper-client3.4.8ZooKeeper command line client.

Learn More

If you are looking for additional information, see the following guides and sites: