Amazon EMR release 5.25.0
5.25.0 application versions
The following applications are supported in this release: Flink
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:
| emr-5.25.0 | emr-5.24.1 | emr-5.24.0 | emr-5.23.1 | |
|---|---|---|---|---|
| AWS SDK for Java | 1.11.566 | 1.11.546 | 1.11.546 | 1.11.519 |
| Python | 2.7, 3.6 | 2.7, 3.6 | 2.7, 3.6 | 2.7, 3.6 |
| Scala | 2.11.12 | 2.11.12 | 2.11.12 | 2.11.12 |
| AmazonCloudWatchAgent | - | - | - | - |
| Delta | - | - | - | - |
| Flink | 1.8.0 | 1.8.0 | 1.8.0 | 1.7.1 |
| Ganglia | 3.7.2 | 3.7.2 | 3.7.2 | 3.7.2 |
| HBase | 1.4.9 | 1.4.9 | 1.4.9 | 1.4.9 |
| HCatalog | 2.3.5 | 2.3.4 | 2.3.4 | 2.3.4 |
| Hadoop | 2.8.5 | 2.8.5 | 2.8.5 | 2.8.5 |
| Hive | 2.3.5 | 2.3.4 | 2.3.4 | 2.3.4 |
| Hudi | - | - | - | - |
| Hue | 4.4.0 | 4.4.0 | 4.4.0 | 4.3.0 |
| Iceberg | - | - | - | - |
| JupyterEnterpriseGateway | - | - | - | - |
| JupyterHub | 0.9.6 | 0.9.6 | 0.9.6 | 0.9.4 |
| Livy | 0.6.0 | 0.6.0 | 0.6.0 | 0.5.0 |
| MXNet | 1.4.0 | 1.4.0 | 1.4.0 | 1.3.1 |
| Mahout | 0.13.0 | 0.13.0 | 0.13.0 | 0.13.0 |
| Oozie | 5.1.0 | 5.1.0 | 5.1.0 | 5.1.0 |
| Phoenix | 4.14.1 | 4.14.1 | 4.14.1 | 4.14.1 |
| Pig | 0.17.0 | 0.17.0 | 0.17.0 | 0.17.0 |
| Presto | 0.220 | 0.219 | 0.219 | 0.215 |
| Spark | 2.4.3 | 2.4.2 | 2.4.2 | 2.4.0 |
| Sqoop | 1.4.7 | 1.4.7 | 1.4.7 | 1.4.7 |
| TensorFlow | 1.13.1 | 1.12.0 | 1.12.0 | 1.12.0 |
| Tez | 0.9.2 | 0.9.1 | 0.9.1 | 0.9.1 |
| Trino (PrestoSQL) | - | - | - | - |
| Zeppelin | 0.8.1 | 0.8.1 | 0.8.1 | 0.8.1 |
| ZooKeeper | 3.4.14 | 3.4.13 | 3.4.13 | 3.4.13 |
5.25.0 release notes
The following release notes include information for Amazon EMR release 5.25.0. Changes are relative to 5.24.1.
Initial release date: July 17, 2019
Last updated date: Oct 30, 2019
Amazon EMR 5.25.0
Upgrades
AWS SDK for Java 1.11.566
Hive 2.3.5
Presto 0.220
Spark 2.4.3
TensorFlow 1.13.1
Tez 0.9.2
Zookeeper 3.4.14
New features
(Oct 30, 2019) Beginning with Amazon EMR version 5.25.0, you can connect to Spark history server UI from the cluster Summary page or the Application history tab in the console. Instead of setting up a web proxy through an SSH connection, you can quickly access the Spark history server UI to view application metrics and access relevant log files for active and terminated clusters. For more information, see Off-cluster access to persistent application user interfaces in the Amazon EMR Management Guide.
Changes, enhancements, and resolved issues
-
Spark
Improved the performance of some joins by using Bloom filters to pre-filter inputs. The optimization is disabled by default and can be enabled by setting the Spark configuration parameter
spark.sql.bloomFilterJoin.enabledtotrue.Improved the performance of grouping by string type columns.
-
Improved the default Spark executor memory and cores configuration of R4 instance types for clusters without HBase installed.
Resolved a previous issue with the dynamic partition pruning feature where the pruned table has to be on the left side of the join.
Improved DISTINCT before INTERSECT optimization to apply to additional cases involving aliases.
-
Improved SQL plan statistics inference for JOIN followed by DISTINCT queries. This improvement is disabled by default and can be enabled by setting the Spark configuration parameter
spark.sql.statsImprovements.enabledtotrue. This optimization is required by the Distinct before Intersect feature and will be enabled automatically whenspark.sql.optimizer.distinctBeforeIntersect.enabledis set totrue. Optimized join order based on table size and filters. This optimization is disabled by default and can be enabled by setting the Spark configuration parameter
spark.sql.optimizer.sizeBasedJoinReorder.enabledtotrue.
For more information, see Optimizing Spark Performance.
-
EMRFS
-
The EMRFS setting,
fs.s3.buckets.create.enabled, is now disabled by default. With testing, we found that disabling this setting improves performance and prevents unintentional creation of S3 buckets. If your application relies on this functionality, you can enable it by setting the propertyfs.s3.buckets.create.enabledtotruein theemrfs-siteconfiguration classification. For information, see Supplying a Configuration when Creating a Cluster.
-
Local Disk Encryption and S3 Encryption Improvements in Security Configurations (August 5, 2019)
Separated Amazon S3 encryption settings from local disk encryption settings in security configuration setup.
Added an option to enable EBS encryption with release 5.24.0 and later. Selecting this option encrypts the root device volume in addition to storage volumes. Previous versions required using a custom AMI to encrypt the root device volume.
For more information, see Encryption Options in the Amazon EMR Management Guide.
Known issues
-
Known issue in clusters with multiple primary nodes and Kerberos authentication
If you run clusters with multiple primary nodes and Kerberos authentication in Amazon EMR releases 5.20.0 and later, you may encounter problems with cluster operations such as scale down or step submission, after the cluster has been running for some time. The time period depends on the Kerberos ticket validity period that you defined. The scale-down problem impacts both automatic scale-down and explicit scale down requests that you submitted. Additional cluster operations can also be impacted.
Workaround:
-
SSH as
hadoopuser to the lead primary node of the EMR cluster with multiple primary nodes. -
Run the following command to renew Kerberos ticket for
hadoopuser.kinit -kt <keytab_file> <principal>Typically, the keytab file is located at
/etc/hadoop.keytaband the principal is in the form ofhadoop/<hostname>@<REALM>.
Note
This workaround will be effective for the time period the Kerberos ticket is valid. This duration is 10 hours by default, but can configured by your Kerberos settings. You must re-run the above command once the Kerberos ticket expires.
-
5.25.0 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-EmrVersionEmrVersionmyapp-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 |
|---|---|---|
| aws-sagemaker-spark-sdk | 1.2.4 | Amazon SageMaker Spark SDK |
| emr-ddb | 4.10.0 | Amazon DynamoDB connector for Hadoop ecosystem applications. |
| emr-goodies | 2.9.0 | Extra convenience libraries for the Hadoop ecosystem. |
| emr-kinesis | 3.4.0 | Amazon Kinesis connector for Hadoop ecosystem applications. |
| emr-s3-dist-cp | 2.11.0 | Distributed copy application optimized for Amazon S3. |
| emr-s3-select | 1.3.0 | EMR S3Select Connector |
| emrfs | 2.34.0 | Amazon S3 connector for Hadoop ecosystem applications. |
| flink-client | 1.8.0 | Apache Flink command line client scripts and applications. |
| ganglia-monitor | 3.7.2 | Embedded Ganglia agent for Hadoop ecosystem applications along with the Ganglia monitoring agent. |
| ganglia-metadata-collector | 3.7.2 | Ganglia metadata collector for aggregating metrics from Ganglia monitoring agents. |
| ganglia-web | 3.7.1 | Web application for viewing metrics collected by the Ganglia metadata collector. |
| hadoop-client | 2.8.5-amzn-4 | Hadoop command-line clients such as 'hdfs', 'hadoop', or 'yarn'. |
| hadoop-hdfs-datanode | 2.8.5-amzn-4 | HDFS node-level service for storing blocks. |
| hadoop-hdfs-library | 2.8.5-amzn-4 | HDFS command-line client and library |
| hadoop-hdfs-namenode | 2.8.5-amzn-4 | HDFS service for tracking file names and block locations. |
| hadoop-hdfs-journalnode | 2.8.5-amzn-4 | HDFS service for managing the Hadoop filesystem journal on HA clusters. |
| hadoop-httpfs-server | 2.8.5-amzn-4 | HTTP endpoint for HDFS operations. |
| hadoop-kms-server | 2.8.5-amzn-4 | Cryptographic key management server based on Hadoop's KeyProvider API. |
| hadoop-mapred | 2.8.5-amzn-4 | MapReduce execution engine libraries for running a MapReduce application. |
| hadoop-yarn-nodemanager | 2.8.5-amzn-4 | YARN service for managing containers on an individual node. |
| hadoop-yarn-resourcemanager | 2.8.5-amzn-4 | YARN service for allocating and managing cluster resources and distributed applications. |
| hadoop-yarn-timeline-server | 2.8.5-amzn-4 | Service for retrieving current and historical information for YARN applications. |
| hbase-hmaster | 1.4.9 | Service for an HBase cluster responsible for coordination of Regions and execution of administrative commands. |
| hbase-region-server | 1.4.9 | Service for serving one or more HBase regions. |
| hbase-client | 1.4.9 | HBase command-line client. |
| hbase-rest-server | 1.4.9 | Service providing a RESTful HTTP endpoint for HBase. |
| hbase-thrift-server | 1.4.9 | Service providing a Thrift endpoint to HBase. |
| hcatalog-client | 2.3.5-amzn-0 | The 'hcat' command line client for manipulating hcatalog-server. |
| hcatalog-server | 2.3.5-amzn-0 | Service providing HCatalog, a table and storage management layer for distributed applications. |
| hcatalog-webhcat-server | 2.3.5-amzn-0 | HTTP endpoint providing a REST interface to HCatalog. |
| hive-client | 2.3.5-amzn-0 | Hive command line client. |
| hive-hbase | 2.3.5-amzn-0 | Hive-hbase client. |
| hive-metastore-server | 2.3.5-amzn-0 | Service for accessing the Hive metastore, a semantic repository storing metadata for SQL on Hadoop operations. |
| hive-server2 | 2.3.5-amzn-0 | Service for accepting Hive queries as web requests. |
| hue-server | 4.4.0 | Web application for analyzing data using Hadoop ecosystem applications |
| jupyterhub | 0.9.6 | Multi-user server for Jupyter notebooks |
| livy-server | 0.6.0-incubating | REST interface for interacting with Apache Spark |
| nginx | 1.12.1 | nginx [engine x] is an HTTP and reverse proxy server |
| mahout-client | 0.13.0 | Library for machine learning. |
| mxnet | 1.4.0 | A flexible, scalable, and efficient library for deep learning. |
| mysql-server | 5.5.54+ | MySQL database server. |
| nvidia-cuda | 9.2.88 | Nvidia drivers and Cuda toolkit |
| oozie-client | 5.1.0 | Oozie command-line client. |
| oozie-server | 5.1.0 | Service for accepting Oozie workflow requests. |
| opencv | 3.4.0 | Open Source Computer Vision Library. |
| phoenix-library | 4.14.1-HBase-1.4 | The phoenix libraries for server and client |
| phoenix-query-server | 4.14.1-HBase-1.4 | A light weight server providing JDBC access as well as Protocol Buffers and JSON format access to the Avatica API |
| presto-coordinator | 0.220 | Service for accepting queries and managing query execution among presto-workers. |
| presto-worker | 0.220 | Service for executing pieces of a query. |
| pig-client | 0.17.0 | Pig command-line client. |
| r | 3.4.1 | The R Project for Statistical Computing |
| spark-client | 2.4.3 | Spark command-line clients. |
| spark-history-server | 2.4.3 | Web UI for viewing logged events for the lifetime of a completed Spark application. |
| spark-on-yarn | 2.4.3 | In-memory execution engine for YARN. |
| spark-yarn-slave | 2.4.3 | Apache Spark libraries needed by YARN slaves. |
| sqoop-client | 1.4.7 | Apache Sqoop command-line client. |
| tensorflow | 1.13.1 | TensorFlow open source software library for high performance numerical computation. |
| tez-on-yarn | 0.9.2 | The tez YARN application and libraries. |
| webserver | 2.4.25+ | Apache HTTP server. |
| zeppelin-server | 0.8.1 | Web-based notebook that enables interactive data analytics. |
| zookeeper-server | 3.4.14 | Centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. |
| zookeeper-client | 3.4.14 | ZooKeeper command line client. |
5.25.0 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.
| Classifications | Description |
|---|---|
capacity-scheduler | Change values in Hadoop's capacity-scheduler.xml file. |
container-log4j | Change values in Hadoop YARN's container-log4j.properties file. |
core-site | Change values in Hadoop's core-site.xml file. |
emrfs-site | Change EMRFS settings. |
flink-conf | Change flink-conf.yaml settings. |
flink-log4j | Change Flink log4j.properties settings. |
flink-log4j-yarn-session | Change Flink log4j-yarn-session.properties settings. |
flink-log4j-cli | Change Flink log4j-cli.properties settings. |
hadoop-env | Change values in the Hadoop environment for all Hadoop components. |
hadoop-log4j | Change values in Hadoop's log4j.properties file. |
hadoop-ssl-server | Change hadoop ssl server configuration |
hadoop-ssl-client | Change hadoop ssl client configuration |
hbase | Amazon EMR-curated settings for Apache HBase. |
hbase-env | Change values in HBase's environment. |
hbase-log4j | Change values in HBase's hbase-log4j.properties file. |
hbase-metrics | Change values in HBase's hadoop-metrics2-hbase.properties file. |
hbase-policy | Change values in HBase's hbase-policy.xml file. |
hbase-site | Change values in HBase's hbase-site.xml file. |
hdfs-encryption-zones | Configure HDFS encryption zones. |
hdfs-site | Change values in HDFS's hdfs-site.xml. |
hcatalog-env | Change values in HCatalog's environment. |
hcatalog-server-jndi | Change values in HCatalog's jndi.properties. |
hcatalog-server-proto-hive-site | Change values in HCatalog's proto-hive-site.xml. |
hcatalog-webhcat-env | Change values in HCatalog WebHCat's environment. |
hcatalog-webhcat-log4j2 | Change values in HCatalog WebHCat's log4j2.properties. |
hcatalog-webhcat-site | Change values in HCatalog WebHCat's webhcat-site.xml file. |
hive-beeline-log4j2 | Change values in Hive's beeline-log4j2.properties file. |
hive-parquet-logging | Change values in Hive's parquet-logging.properties file. |
hive-env | Change values in the Hive environment. |
hive-exec-log4j2 | Change values in Hive's hive-exec-log4j2.properties file. |
hive-llap-daemon-log4j2 | Change values in Hive's llap-daemon-log4j2.properties file. |
hive-log4j2 | Change values in Hive's hive-log4j2.properties file. |
hive-site | Change values in Hive's hive-site.xml file |
hiveserver2-site | Change values in Hive Server2's hiveserver2-site.xml file |
hue-ini | Change values in Hue's ini file |
httpfs-env | Change values in the HTTPFS environment. |
httpfs-site | Change values in Hadoop's httpfs-site.xml file. |
hadoop-kms-acls | Change values in Hadoop's kms-acls.xml file. |
hadoop-kms-env | Change values in the Hadoop KMS environment. |
hadoop-kms-log4j | Change values in Hadoop's kms-log4j.properties file. |
hadoop-kms-site | Change values in Hadoop's kms-site.xml file. |
jupyter-notebook-conf | Change values in Jupyter Notebook's jupyter_notebook_config.py file. |
jupyter-hub-conf | Change values in JupyterHubs's jupyterhub_config.py file. |
jupyter-s3-conf | Configure Jupyter Notebook S3 persistence. |
jupyter-sparkmagic-conf | Change values in Sparkmagic's config.json file. |
livy-conf | Change values in Livy's livy.conf file. |
livy-env | Change values in the Livy environment. |
livy-log4j | Change Livy log4j.properties settings. |
mapred-env | Change values in the MapReduce application's environment. |
mapred-site | Change values in the MapReduce application's mapred-site.xml file. |
oozie-env | Change values in Oozie's environment. |
oozie-log4j | Change values in Oozie's oozie-log4j.properties file. |
oozie-site | Change values in Oozie's oozie-site.xml file. |
phoenix-hbase-metrics | Change values in Phoenix's hadoop-metrics2-hbase.properties file. |
phoenix-hbase-site | Change values in Phoenix's hbase-site.xml file. |
phoenix-log4j | Change values in Phoenix's log4j.properties file. |
phoenix-metrics | Change values in Phoenix's hadoop-metrics2-phoenix.properties file. |
pig-env | Change values in the Pig environment. |
pig-properties | Change values in Pig's pig.properties file. |
pig-log4j | Change values in Pig's log4j.properties file. |
presto-log | Change values in Presto's log.properties file. |
presto-config | Change values in Presto's config.properties file. |
presto-password-authenticator | Change values in Presto's password-authenticator.properties file. |
presto-env | Change values in Presto's presto-env.sh file. |
presto-node | Change values in Presto's node.properties file. |
presto-connector-blackhole | Change values in Presto's blackhole.properties file. |
presto-connector-cassandra | Change values in Presto's cassandra.properties file. |
presto-connector-hive | Change values in Presto's hive.properties file. |
presto-connector-jmx | Change values in Presto's jmx.properties file. |
presto-connector-kafka | Change values in Presto's kafka.properties file. |
presto-connector-localfile | Change values in Presto's localfile.properties file. |
presto-connector-memory | Change values in Presto's memory.properties file. |
presto-connector-mongodb | Change values in Presto's mongodb.properties file. |
presto-connector-mysql | Change values in Presto's mysql.properties file. |
presto-connector-postgresql | Change values in Presto's postgresql.properties file. |
presto-connector-raptor | Change values in Presto's raptor.properties file. |
presto-connector-redis | Change values in Presto's redis.properties file. |
presto-connector-redshift | Change values in Presto's redshift.properties file. |
presto-connector-tpch | Change values in Presto's tpch.properties file. |
presto-connector-tpcds | Change values in Presto's tpcds.properties file. |
recordserver-env | Change values in the EMR RecordServer environment. |
recordserver-conf | Change values in EMR RecordServer's erver.properties file. |
recordserver-log4j | Change values in EMR RecordServer's log4j.properties file. |
spark | Amazon EMR-curated settings for Apache Spark. |
spark-defaults | Change values in Spark's spark-defaults.conf file. |
spark-env | Change values in the Spark environment. |
spark-hive-site | Change values in Spark's hive-site.xml file |
spark-log4j | Change values in Spark's log4j.properties file. |
spark-metrics | Change values in Spark's metrics.properties file. |
sqoop-env | Change values in Sqoop's environment. |
sqoop-oraoop-site | Change values in Sqoop OraOop's oraoop-site.xml file. |
sqoop-site | Change values in Sqoop's sqoop-site.xml file. |
tez-site | Change values in Tez's tez-site.xml file. |
yarn-env | Change values in the YARN environment. |
yarn-site | Change values in YARN's yarn-site.xml file. |
zeppelin-env | Change values in the Zeppelin environment. |
zookeeper-config | Change values in ZooKeeper's zoo.cfg file. |
zookeeper-log4j | Change values in ZooKeeper's log4j.properties file. |
