E-MapReduce:Release notes for EMR V4.3.X

Service

Description

Ranger

• Custom deployment of Hadoop Distributed File System (HDFS), Hive, and Spark plug-ins is supported. You can enable plug-ins on required service nodes.

• The RangerUserSync and RangerAdmin components can be configured in the EMR console.

Presto

The Kudu client is updated.

Spark

• Spark is updated to 2.4.5.

• The associated Delta Lake is updated to 0.6.0.

• The issue that PySpark cannot properly run after Ranger Hive is enabled is fixed.

HDFS

• The issue that the HDFS_NAMENODE_OPTS parameter does not take effect is fixed.

• Custom deployment is supported.

YARN

Custom deployment is supported.

Hive

Custom deployment is supported.

Knox

Information on the web UI of HDFS NameNode in Hadoop 3.X can be viewed.

Zeppelin

The issue that a zepping.keytab file fails to be generated is fixed.

Kafka

Kafka is updated to 2.4.1.

Kudu

Kudu is updated to 1.11.1.

Impala

Issues related to HAProxy are fixed.

Livy

Issues related to xmllint are fixed.

Hue

• Hue can be deployed on gateway clusters.

• Multiple Hue instances can be enabled on a single node.