Amazon EMR release 4.2.0 - Amazon EMR
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Amazon EMR release 4.2.0

Application versions

The following applications are supported in this release: Ganglia, Hadoop, Hive, Hue, Mahout, Oozie-Sandbox, Pig, Presto-Sandbox, Spark, and Zeppelin-Sandbox.

The table below lists the application versions available in this release of Amazon EMR and the application versions in the preceding three Amazon EMR releases (when applicable).

For a comprehensive history of application versions for each release of Amazon EMR, see the following topics:

Application version information
emr-4.3.0 emr-4.2.0 emr-4.1.0 emr-4.0.0
Amazon SDK for Java trackedNot tracked
Python Not trackedNot trackedNot trackedNot tracked
Scala Not trackedNot trackedNot trackedNot tracked
AmazonCloudWatchAgent - - - -
Delta - - - -
Flink - - - -
Ganglia3. - -
HBase - - - -
HCatalog - - - -
Hudi - - - -
Hue3. -
Iceberg - - - -
JupyterEnterpriseGateway - - - -
JupyterHub - - - -
Livy - - - -
MXNet - - - -
Oozie - - - -
Oozie-Sandbox4. -
Phoenix - - - -
Presto - - - -
Presto-Sandbox0.1300.1250.119 -
Sqoop - - - -
Sqoop-Sandbox - - - -
TensorFlow - - - -
Tez - - - -
Trino (PrestoSQL) - - - -
Zeppelin - - - -
Zeppelin-Sandbox0. -
ZooKeeper - - - -
ZooKeeper-Sandbox - - - -

Release notes

The following release notes include information for the Amazon EMR 4.2.0 release.

Release date: November 18, 2015

  • Added Ganglia support

  • Upgraded to Spark 1.5.2

  • Upgraded to Presto 0.125

  • Upgraded Oozie to 4.2.0

  • Upgraded Zeppelin to 0.5.5

  • Upgraded the Amazon SDK for Java to 1.10.27

Known issues resolved from previous releases
  • Fixed an issue with the EMRFS CLI where it did not use the default metadata table name.

  • Fixed an issue encountered when using ORC-backed tables in Amazon S3.

  • Fixed an issue encountered with a Python version mismatch in the Spark configuration.

  • Fixed an issue when a YARN node status fails to report because of DNS issues for clusters in a VPC.

  • Fixed an issue encountered when YARN decommissioned nodes, resulting in hung applications or the inability to schedule new applications.

  • Fixed an issue encountered when clusters terminated with status TIMED_OUT_STARTING.

  • Fixed an issue encountered when including the EMRFS Scala dependency in other builds. The Scala dependency has been removed.

Component versions

The components that Amazon EMR installs with this release are listed below. Some are installed as part of big-data application packages. Others are unique to Amazon EMR and installed for system processes and features. These typically start with emr or aws. Big-data application packages in the most recent Amazon EMR release are usually the latest version found in the community. We make community releases available in Amazon EMR as quickly as possible.

Some components in Amazon EMR differ from community versions. These components have a version label in the form CommunityVersion-amzn-EmrVersion. The EmrVersion starts at 0. For example, if open source community component named myapp-component with version 2.2 has been modified three times for inclusion in different Amazon EMR releases, its release version is listed as 2.2-amzn-2.

Component Version Description
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-cp2.0.0Distributed copy application optimized for Amazon S3.
emrfs2.2.0Amazon S3 connector for Hadoop ecosystem applications.
ganglia-monitor3.6.0Embedded Ganglia agent for Hadoop ecosystem applications along with the Ganglia monitoring agent.
ganglia-metadata-collector3.6.0Ganglia metadata collector for aggregating metrics from Ganglia monitoring agents.
ganglia-web3.5.10Web application for viewing metrics collected by the Ganglia metadata collector.
hadoop-client2.6.0-amzn-2Hadoop command-line clients such as 'hdfs', 'hadoop', or 'yarn'.
hadoop-hdfs-datanode2.6.0-amzn-2HDFS node-level service for storing blocks.
hadoop-hdfs-library2.6.0-amzn-2HDFS command-line client and library
hadoop-hdfs-namenode2.6.0-amzn-2HDFS service for tracking file names and block locations.
hadoop-httpfs-server2.6.0-amzn-2HTTP endpoint for HDFS operations.
hadoop-kms-server2.6.0-amzn-2Cryptographic key management server based on Hadoop's KeyProvider API.
hadoop-mapred2.6.0-amzn-2MapReduce execution engine libraries for running a MapReduce application.
hadoop-yarn-nodemanager2.6.0-amzn-2YARN service for managing containers on an individual node.
hadoop-yarn-resourcemanager2.6.0-amzn-2YARN service for allocating and managing cluster resources and distributed applications.
hive-client1.0.0-amzn-1Hive command line client.
hive-metastore-server1.0.0-amzn-1Service for accessing the Hive metastore, a semantic repository storing metadata for SQL on Hadoop operations.
hive-server1.0.0-amzn-1Service for accepting Hive queries as web requests.
hue-server3.7.1-amzn-5Web application for analyzing data using Hadoop ecosystem applications
mahout-client0.11.0Library 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-coordinator0.125Service for accepting queries and managing query execution among presto-workers.
presto-worker0.125Service for executing pieces of a query.
pig-client0.14.0-amzn-0Pig command-line client.
spark-client1.5.2Spark command-line clients.
spark-history-server1.5.2Web UI for viewing logged events for the lifetime of a completed Spark application.
spark-on-yarn1.5.2In-memory execution engine for YARN.
spark-yarn-slave1.5.2Apache Spark libraries needed by YARN slaves.
webserver2.4Apache HTTP server.
zeppelin-server0.5.5-incubating-amzn-0Web-based notebook that enables interactive data analytics.

Configuration classifications

Configuration classifications allow you to customize applications. These often correspond to a configuration XML file for the application, such as hive-site.xml. For more information, see Configure applications.

emr-4.2.0 classifications
Classifications Description


Change values in Hadoop's capacity-scheduler.xml file.


Change values in Hadoop's core-site.xml file.


Change EMRFS settings.


Change values in the Hadoop environment for all Hadoop components.


Change values in Hadoop's file.


Configure HDFS encryption zones.


Change values in HDFS's hdfs-site.xml.


Change values in the Hive environment.


Change values in Hive's file.


Change values in Hive's file.


Change values in Hive's hive-site.xml file


Change values in Hue's ini file


Change values in the HTTPFS environment.


Change values in Hadoop's httpfs-site.xml file.


Change values in Hadoop's kms-acls.xml file.


Change values in the Hadoop KMS environment.


Change values in Hadoop's file.


Change values in Hadoop's kms-site.xml file.


Change values in the MapReduce application's environment.


Change values in the MapReduce application's mapred-site.xml file.


Change values in Oozie's environment.


Change values in Oozie's file.


Change values in Oozie's oozie-site.xml file.


Change values in Pig's file.


Change values in Pig's file.


Change values in Presto's file.


Change values in Presto's file.


Change values in Presto's file.


Amazon EMR-curated settings for Apache Spark.


Change values in Spark's spark-defaults.conf file.


Change values in the Spark environment.


Change values in Spark's file.


Change values in Spark's file.


Change values in the YARN environment.


Change values in YARN's yarn-site.xml file.


Change values in the Zeppelin environment.