1. New Features
The Ambari 2.4 release includes the following new features and improvements:
Table 1.1. Core Ambari
|
Feature |
Description |
|---|---|
|
Improved Host Filtering Control | Ability to filter hosts using a new host filtering control. Refer to Filtering the Hosts List for more information. |
|
Customizing Alert Thresholds | Ability to configure alert thresholds for SCRIPT alerts. Refer to Alert Types for more information. |
|
Setting Alert Check Counts | Ability to set number of alert checks to perform before dispatching a notification. Refer to Alert Check Counts for more information. |
|
Role-based Access Control | Ability to setup additional cluster operator roles. Refer to Managing Cluster Roles for more information. |
|
Remove Service | Ability to remove a service. Refer to Removing a Service for more information. |
|
Version Definition File Support for Registration and Upgrade | Ability to specify an HDP version (for install/upgrade) via a Version Definition File. Refer to Managing Versions for more information. |
|
Customizable Ambari Log and PID Directories | Ability to customize the Ambari Server and Agent Log and PID directories. Refer to Customizing Ambari Log + PID Directories for more information. |
|
Automated Ambari Server Kerberos Setup | If you enable Kerberos using the Automated Setup option, Ambari Server will also get the requisite principal and keytab automatically. Refer to the Ambari Security Guide for more information. |
|
Customizable Agent Registration SSH Port | When adding hosts to the cluster, and choosing Agent registration via SSH, you can now customize the SSH port to use. |
|
Views Framework: View URLs | Ability to create view instance short URLs. Refer to the Ambari Admin Guide for more information. |
|
Views Framework: View Refresh | Ability to deploy new views without an Ambari Server restart. |
|
Views Framework: Inherit Cluster Permissions | If you configure a view instance to use a Local Cluster, you can optionally choose to inherit view USE permission based on the cluster roles. Refer to the Ambari Admin Guide for more information. |
|
Views Framework: Remote Cluster Configuration | Ability to configure a view instance based on a Remote Cluster (that is Ambari-managed). Refer to the Ambari Admin Guide for more information. |
|
Log Search | Ambari includes a new “Log Search” service that can be installed into your cluster. Refer to Ambari Log Search for more information. This feature is Technical Preview. |
SLES 12 SP1 | Added support for installing and running Ambari on SUSE Linux Enterprise Server (SLES) v12 SP1 |
Table 1.2. HDP Stack
|
Feature |
Description |
|---|---|
|
HDP 2.5 | Added support for installing and managing HDP 2.5. |
|
New HDFS Alerts | A new set of HDFS alerts has been added to the list of predefined alerts. Refer to HDFS Service Alerts for more information. |
HDP 2.5 > Spark2 Service | Engine for large scale data processing. This feature is Technical Preview. |
HDP 2.5 > Hive | HiveServer2 Interactive / LLAP. This feature is Technical Preview. |
SLES 12 SP1 | Added support for installing and managing SUSE Linux Enterprise Server (SLES) v12 SP1 |