HPE Ezmeral Data Fabric 6.2 is In Maintenance and transitions to "End of Maintenance" in June 2024. Please see the latest documentation.

About Release 6.2
This site contains documentation for HPE Ezmeral Data Fabric release 6.2 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
6.2 Installation
This section contains information about installing and upgrading HPE Ezmeral Data Fabric software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a HPE Ezmeral Data Fabric cluster.
6.2 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
6.2 Administration
This section describes how to manage the nodes and services that make up a cluster.
6.2 Development
This section contains information related to application development for Ezmeral ecosystem components and HPE Ezmeral Data Fabric products, including the file system, Database (Key-Value and JSON), and Event Streams.
- Application Development Process
  Before you start developing applications on the HPE Ezmeral Data Fabric platform, consider how you will get the data into the platform, the storage format of the data, the type of processing or modeling that is required, and how the data will be accessed.
- File Store and Apps
  The following sections provide information about accessing the File Store with C and Java applications.
- HPE Ezmeral Data Fabric Database and Apps
  This section contains information about developing client applications for JSON and key-value tables.
- HPE Ezmeral Data Fabric Streams and Apps
  HPE Ezmeral Data Fabric Streams brings integrated publish and subscribe messaging to HPE Ezmeral Data Fabric.
- MapReduce and Apps
  This section contains information associated with developing YARN applications.
- Kubernetes Interfaces for Data Fabric
  This section describes how to leverage the capabilities of the Kubernetes Interfaces for Data Fabric.
- Ecosystem Components
  The following sections provide information about each open-source project that is supported by the HPE Ezmeral Data Fabric.
  - Ezmeral Ecosystem Packs
  - Apache Airflow
    This topic provides an overview of Apache Airflow on HPE Ezmeral Data Fabric.
  - AsyncHBase
  - Cascading
  - Apache Drill
  - Flume
    - Configuring Flume
      - Configure a Secure HBase Sink
      - Configure a Secure File System Sink
        When writing to the file system on a secure data-fabric cluster, you must configure Flume agents to use either a user ticket or a Kerberos ticket.
      - Flume Thrift Security Parameters
        On a secure cluster, SSL for Flume Thrift Source and Sink is automatically configured.
      - Configure User Impersonation for Flume
        Configure impersonation for Flume agents to allow one user (the mapr super user) to access data and submit jobs on behalf of another user.
      - Integrate Flume with HPE Ezmeral Data Fabric Streams
        Integrate Flume 1.6 with HPE Ezmeral Data Fabric Streams when you want to write Flume source data to a HPE Ezmeral Data Fabric Streams topic or when you want to write HPE Ezmeral Data Fabric Streams topics to a Flume sink.
    - Using Flume
    - Flume 1.7.0 API
  - Hadoop
  - HBase
  - HBase Client and HPE Ezmeral Data Fabric Database Binary Tables
  - HCatalog
  - Hive
  - HttpFS
  - Hue
  - Impala
  - Livy
    Apache Livy is primarily used to provide integration between Hue and Spark.
  - HPE Ezmeral Data Fabric Streams Clients and Tools
    Describes the supported HPE Ezmeral Data Fabric Streams tools and clients.
  - S3 Gateway
    The S3 gateway is a service that provides an S3-compatible interface to expose data in HPE Ezmeral Data Fabric as objects. The S3 gateway manages all inbound S3 API requests to put data into and get data out of cloud storage.
  - Oozie
  - Pig
  - Sentry
  - Apache Spark
  - Sqoop
  - YARN
- Maven and the HPE Ezmeral Data Fabric
  This section discusses topics associated with Maven and the HPE Ezmeral Data Fabric.
- Developer's Reference
  This section contains in-depth information for the developer.
- API Documentation
  HPE Ezmeral Data Fabric supports public APIs for file system, HPE Ezmeral Data Fabric Database, and HPE Ezmeral Data Fabric Streams. These APIs are available for application-development purposes.
Other Docs
This section contains release-independent information, including: Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other data-fabric version documentation.
Glossary
Definitions for commonly used terms in MapR Converged Data Platform environments.

Flume Thrift Security Parameters

On a secure cluster, SSL for Flume Thrift Source and Sink is automatically configured.

IMPORTANT This component is deprecated. Hewlett Packard Enterprise recommends using an alternate product. For more information, see Discontinued Ecosystem Components.

In your MapR secure cluster, if the flume-agent configuration file does not specify SSL parameters, they are automatically supplied as follows:

In EEP 6.0.0, SSL for Flume Thrift Source and Sink is automatically configured.
In EEP 6.0.1, SSL for Flume Thrift and Avro Source and Sink is automatically configured.

Flume Thrift clients have the following configuration parameters for wire-level security:

Parameter for SSL

ssl: Enables SSL. If set to true, the keystore and keystore-password parameters must also be specified. Default: false. If the ssl parameter is not specified, it is defaulted to true for Thrift clients if cluster security is enabled.

Parameters for Thrift Source

keystore: Specifies the path to the Java keystore. The ssl_keystore uses the same ssl_keystore specified in the ssl.server.keystore.location section of /opt/mapr/conf/ssl-client.xml, /opt/mapr/conf/ssl_keystore.
keystone-password: Specifies the password for the Java keystore. The keystore-password uses the same password specified in the ssl.client.keystore.password of /opt/mapr/conf/ssl-client.xml, <ssl-keystore-password>.
keystore-type: Specifies the type of the Java keystore: JKS or PKCS12. The keystore-type uses the same ssl_keystore specified in the ssl.client.keystore.type section of /opt/mapr/conf/ssl-client.xml.

Parameters for Thrift Sink

truststore: Specifies the path to the Java truststore. The truststore uses the same ssl_keystore specified in the ssl.client.truststore.location section of /opt/mapr/conf/ssl-client.xml.
truststore-password: Specifies the password for the Java truststore. The truststore-password uses the same ssl_keystore specified in the ssl.client.truststore.password section of /opt/mapr/conf/ssl-client.xml.
truststore-type: Specifies the type of the Java keystore. This can be JKS or PKCS12. The truststore-type uses the same ssl_keystore specified in the ssl.client.truststore.type section of /opt/mapr/conf/ssl-client.xml.