This site contains documentation for HPE Ezmeral Data Fabric release 7.6.1, including installation, configuration, administration, and reference content, as well as content for the associated ecosystem components and drivers.
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.
HPE Ezmeral Data Fabric is the industry-leading data platform for AI and analytics that solves enterprise business needs.
This section describes how to manage the nodes and services that make up a cluster.
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.
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.
The following sections provide information about accessing the File Store with C and Java applications.
This section contains information about developing client applications for JSON and key-value tables.
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 brings integrated publish and subscribe messaging to HPE Ezmeral Data Fabric.
This section contains information associated with developing YARN applications.
This section describes how to leverage the capabilities of the Kubernetes Interfaces for Data Fabric.
The following sections provide information about each open-source project that is supported by the HPE Ezmeral Data Fabric.
This section discusses topics associated with Maven and the HPE Ezmeral Data Fabric.
This section contains in-depth information for the developer.
The mapr dbshell is a tool that enables you to create and perform basic manipulation of JSON tables and documents. You run dbshell by typing mapr dbshell on the command line after logging into a node in a HPE Ezmeral Data Fabric cluster.
mapr dbshell
HPE Ezmeral Data Fabric Database JSON provides utilities to copy, export, and import data, compare table content, and verify the consistency of secondary indexes.
You can manage HPE Ezmeral Data Fabric Database tables using HBase shell commands and additional HBase shell commands included in the HPE Ezmeral Data Fabric distribution of Hadoop.
HPE Ezmeral Data Fabric Database provides utilities to copy and compare data in HPE Ezmeral Data Fabric Database binary tables.
This section describes the YARN commands.
HPE releases source code to the open-source community for enhancements that HPE has made to the Apache Hadoop project and other ecosystem components.
This section describes the Hadoop commands.
Summarizes the API changes introduced in Hadoop 3.
The hadoop archive command creates a Hadoop archive, a file that contains other files. A Hadoop archive always has a *.har extension.
hadoop archive
*.har
The hadoop classpath command prints the class path needed to access the Hadoop jar and the required libraries.
hadoop classpath
The hadoop daemonlog command gets and sets the log level for each daemon.
hadoop daemonlog
The hadoop distcp command is a tool used for large inter- and intra-cluster copying.
hadoop distcp
The hadoop fs command runs a generic file system user client that interacts with the file system. Starting from EEP 7.1.0, all hadoop fs commands support operations on symlinks.
hadoop fs
The hadoop jar command runs a program contained in a JAR file. Users can bundle their MapReduce code in a JAR file and execute it using this command.
hadoop jar
The hadoop job command enables you to manage MapReduce jobs.
hadoop job
The hadoop mfs command displays directory information and contents, creates symbolic links and hard links, sets, gets, and removes Access Control Expressions (ACE) on files and directories, and sets compression and chunk size on a directory.
hadoop mfs
The hadoop mradmin command runs Map-Reduce administrative commands.
hadoop mradmin
The hadoop pipes command runs a pipes job.
hadoop pipes
The hadoop queue command displays job queue information.
hadoop queue
The hadoop version command prints the hadoop software version.
hadoop version
The hadoop conf command outputs the configuration information for this node to standard output.
hadoop conf
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.
This section contains release-independent information, including: Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other data-fabric version documentation.
Definitions for commonly used terms in MapR Converged Data Platform environments.
This section contains the following: