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.
- 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.
  - HPE Ezmeral Data Fabric Database Shell (JSON Tables)
    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.
    - dbshell create
      Describes how to use HPE Ezmeral Data Fabric Database shell to create a JSON table.
    - dbshell delete
    - dbshell drop
    - dbshell find or findbyid
      To query JSON documents in HPE Ezmeral Data Fabric Database shell, use either the find or findbyid command. The find command enables you to scan complete tables and retrieve rows that satisfy projection and/or condition clauses. The findbyid command enables you to retrieve a single document with a given ID.
    - dbshell indexscan
    - dbshell insert
    - dbshell jsonoptions
    - dbshell list
    - dbshell replace
    - dbshell update
  - Utilities for HPE Ezmeral Data Fabric Database JSON Tables
    HPE Ezmeral Data Fabric Database JSON provides utilities to copy, export, and import data, compare table content, and verify the consistency of secondary indexes.
  - HPE Ezmeral Data Fabric Database HBase Shell (Binary Tables)
    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.
  - Utilities for HPE Ezmeral Data Fabric Database Binary Tables
    HPE Ezmeral Data Fabric Database provides utilities to copy and compare data in HPE Ezmeral Data Fabric Database binary tables.
  - HPE Ezmeral Data Fabric Streams Utilities
  - YARN Commands
    This section describes the YARN commands.
  - Source Code for HPE Ezmeral Data Fabric Software
    HPE releases source code to the open-source community for enhancements that HPE has made to the Apache Hadoop project and other ecosystem components.
  - Hadoop Commands
    This section describes the Hadoop commands.
- 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.

dbshell drop

Description

To run the drop command, specify the path to the HPE Ezmeral Data Fabric Database JSON table.

Parameters

Table 1.
drop Options	Description
`*`, `--t`, `--table` (Required)	Table path

Syntax

drop <table path>

Example

drop /data/movies

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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