E-MapReduce:Release notes for EMR V4.4.X

Service

Description

YARN

• The hadoop/tools/lib directory is deleted from the value of the yarn.application.classpath parameter.

• Default parameter settings for MapReduce jobs are optimized.

Hive

Default parameter settings are optimized.

Tez

Ranger

• Impala-based access control is supported.

• The jackson-databind version is updated.

Impala

• Integration with Ranger is supported.

• Shiro is updated to 1.6.0.

SmartData

SmartData and Bigboot are updated to 2.7.301.

Bigboot

Knox

• The web UI of Tez can be independently viewed. Knox is compatible with Tez on the web UI of YARN.

• Shiro is updated to 1.6.0.

EMR Doctor

The following issue is fixed: Job information is not collected if a time-based configuration file is empty.

Ganglia

The detection feature of the service RPC port for Hadoop Distributed File System (HDFS) is enabled.

Oozie

• The issue that the web UI cannot be accessed is fixed.

• The jackson-databind version is updated.

ZooKeeper

Internal IP addresses can be bound to Elastic Compute Service (ECS) instances to start service ports.

Superset

The startup script is repaired.

Livy

The versions of jackson-databind and Fastjson are updated.

Zepplin

The versions of jackson-databind and Shiro are updated.

HAS

The versions of jackson-databind and Fastjson are updated.

Flume

The Fastjson version is updated.