About Release 7.9.0
This site contains documentation for HPE Ezmeral Data Fabric release 7.9.0, including installation, configuration, administration, and reference content, as well as content for the associated ecosystem components and drivers.
7.9.0 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.
7.9.0 Data Fabric
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
7.9.0 Administration
This section describes how to manage the nodes and services that make up a cluster.
7.9.0 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.
- Apache Kafka Wire Protocol Service
  HPE Ezmeral Data Fabric Streams supports Apache Kafka Wire Protocol Service. Apache Kafka Wire Protocol Service is a TCP/IP service that emulates a Kafka cluster backed by HPE Ezmeral Data Fabric Streams. The service makes it possible for Apache Kafka clients written in any programming language to access topics in HPE Ezmeral Data Fabric Streams.
- 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.
  - Ecosystem Packs
  - Apache Airflow
    This topic provides an overview of Apache Airflow on HPE Ezmeral Data Fabric.
  - AsyncHBase
  - Cascading
  - Apache Drill
  - Hadoop
  - HBase
  - HBase Client and HPE Ezmeral Data Fabric Database Binary Tables
  - HCatalog
  - Hive
    - Getting Started with Hive
    - Configuring Hive
    - Integrating Hive
    - Managing Hive Services
    - Connecting to Hive
    - Enabling High Availability for Hive
      This section describes how to enable High Availability for HiveServer2 and HiveMetastore.
    - Hive Features in HPE Ezmeral Data Fabric
      Describes HPE Ezmeral Data Fabric-specific features in Hive.
    - Hive 3.1.3 API Changes
      This topic describes the public API changes that occurred between Hive 2.3.9 EEP 8.1.0 and Hive 3.1.3 EEP 9.0.0.
    - Hive 2.3 API Changes
      This topic describes the public API changes that occurred between Hive 2.1 EEP 5.0.0 and Hive 2.3 EEP 6.0.0.
    - Hive 2.1 API
    - Troubleshooting Hive and Tez
    - Hive Logging
      This section describes Hive logging for Hive 2.1 and later releases and includes information about log splitting.
  - HttpFS
  - Hue
  - 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.
  - NiFi
    This topic provides an overview of Apache NiFi on HPE Ezmeral Data Fabric.
  - OTel
    This topic provides an overview of OpenTelemetry on HPE Ezmeral Data Fabric.
  - Ranger
  - Apache Spark
  - YARN
  - Zeppelin
- 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.

New Interfaces in Hive 2.1

Hive 2.1 includes the following new interfaces:

Interface	Description
org.apache.hadoop.hive.common.Pool	Simple object pool to prevent GC on small objects passed between threads.
org.apache.hadoop.hive.common.io.Allocator	An allocator provided externally to storage classes to allocate MemoryBuffer-s.
org.apache.hadoop.hive.common.io.DataCache	An abstract data cache that IO formats can use to retrieve and cache data.
org.apache.hadoop.hive.conf.HiveVariableSource	Getting hive variables.
org.apache.hadoop.hive.metastore.FileFormatProxy	Same as PartitionExpressionProxy, but for file format specific methods for metadata cache.
org.apache.hadoop.hive.metastore.HouseKeeperService	Runs arbitrary background logic inside the metastore service.
org.apache.hadoop.hive.metastore.txn.TxnStore	A handler to answer transaction related calls that come into the metastore server.
org.apache.hadoop.hive.ql.exec.tez.KeyValuesAdapter	Key-values interface for the Reader used by ReduceRecordSource
org.apache.hadoop.hive.ql.exec.vector.expressions.IStructInExpr	Interface used for both filter and non-filter versions of IN to simplify VectorizationContext code.
org.apache.hadoop.hive.ql.exec.vector.expressions.ITimestampInExpr	Interface used to proccess timestamp in expression.
org.apache.hadoop.hive.ql.io.ColumnarSplit	Interface when implemented should return the estimated size of columnar projections that will be read from the split.
org.apache.hadoop.hive.ql.io.LlapAwareSplit	Split that is aware that it could be executed in LLAP.
org.apache.hadoop.hive.ql.io.LlapWrappableInputFormatInterface	Marker interface for LLAP; serves no other purpose.
org.apache.hadoop.hive.ql.io.SelfDescribingInputFormatInterface	Marker interface to indicate a given input format is self-describing and can perform schema evolution itself.
org.apache.hadoop.hive.ql.io.StreamingOutputFormat	Marker interface for streaming output formats.
org.apache.hadoop.hive.ql.security.authorization.plugin.HiveAuthorizationTranslator	This interface has functions that provide the ability to customize the translation from Hive internal representations of Authorization objects to the public API objects This is an interface that is not meant for general use, it is targeted to some specific use cases of Apache Sentry (incubating).
org.apache.hadoop.hive.serde2.FetchFormatter	(For internal-use only) Used in ListSinkOperator for formatting final output.

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HPE Ezmeral Data Fabric – Customer-Managed 7.9.0 Documentation
Abstract	This site contains documentation for the customer-managed platform of the HPE Ezmeral Data Fabric version 7.9.0 including installation, configuration, administration, and reference content, as well as content for the associated bundled ecosystem components and drivers.
Published	November 2024
Edition	7.9.0