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.
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.
Lists topics that help manage a data-fabric cluster.
Provides a synopsis of managing nodes in a cluster.
This section provide information about how to organize and manage data using volumes, a unique feature of HPE Ezmeral Data Fabric clusters.
Administration of the HPE Ezmeral Data Fabric Database is done primarily via the command line (maprcli) or with the Managed Control System (MCS). Regardless of whether the HPE Ezmeral Data Fabric Database table is used for binary files or JSON documents, the same types of commands are used with slightly different parameter options. HPE Ezmeral Data Fabric Database administration is associated with tables, columns and column families, and table regions.
A HPE Ezmeral Data Fabric gateway mediates one-way communication between a source HPE Ezmeral Data Fabric cluster and a destination cluster. You can replicate HPE Ezmeral Data Fabric Database tables (binary and JSON) and HPE Ezmeral Data Fabric Streams streams. HPE Ezmeral Data Fabric gateways also apply updates from JSON tables to their secondary indexes and propagate Change Data Capture (CDC) logs.
This section describes how to monitor the health and performance of a MapR cluster.
Describes how to configure security and manage secure clusters.
Provides procedures that will enable you to use MapR clusters securely.
The HPE Ezmeral Data Fabric Data Access Gateway is a service that acts as a proxy and gateway for translating requests between lightweight client applications and the HPE Ezmeral Data Fabric cluster. This section describes considerations when upgrading the service, how to modify configuration settings, and how to administer and manage the service.
This section contains in-depth reference information for the administrator.
This section provides information about the HPE Ezmeral Data Fabric command API. Most commands can be run on the command-line interface (CLI), or by making REST requests programmatically or in a browser.
Each command reference page includes the command syntax, a table that describes the parameters, and examples of command usage.
Verifies given user roles for ACEs exists in the /opt/mapr/conf/m7_permissions_roles_refimpl.conf file.
/opt/mapr/conf/m7_permissions_roles_refimpl.conf
Describes the acl commands used to access control lists (ACLs).
Describes the alarm commands that perform functions related to system alarms.
Describes commands used to audit operations related to cluster management and data access.
Describes commands used to blacklist and to list blacklisted users.
Manages cluster features, gateways, and cluster-wide settings.
Lists configuration values for the data-fabric cluster.
Displays a summary of information about the cluster.
Lists disk parameters.
Returns key information about volumes, containers, storage pools, and MapR cluster services for debugging and troubleshooting.
Manages entities (users and groups).
Displays information about HPE Ezmeral Data Fabric Database or file-system components that are identified by a FID.
Lets you perform tiering operations at the file level.
Creates and modifies filters to restrict certain file types from being stored on specified volumes.
Manages Hadoop jobs running on the cluster.
Manages MapR licenses.
Manages registration and modification of labels.
Refreshes NFS exports and server cache.
Manages NFSv4 server.
Manages nodes in the cluster
Manages resource usage limits for the cluster.
Manages schedules.
Lists all services on the specified node, the memory allocated for each service, the state of each service, and log path for each service.
Sets log level on individual services.
Manages stream functionality.
stream assign list
For the given stream, lists consumers and the topics and partitions that the consumers are reading messages from.
stream create
Creates a new stream.
stream cursor delete
Deletes committed cursors that are in the partitions in a stream.
stream cursor list
Lists the cursors for the consumers of a stream.
stream delete
Deletes the specified stream. Deleted streams cannot be recovered unless they were previously replicated.
stream edit
Edits the values of parameters for the specified stream.
stream info
Displays the values of the parameters of the specified stream.
stream purge
Runs the purge process, removing messages that are marked for deletion and reclaiming disk space.
stream replica add
Registers an existing stream as a replica of the specified stream.
stream replica autosetup
Sets up and starts replication between a source stream and replica stream.
stream replica edit
Modifies the way in which messages are replicated from one stream to another.
stream replica list
Lists the replicas of a given stream.
stream replica pause
Pauses replication from a source stream to a replica stream during autosetup and replication phases.
stream replica remove
Unregisters a stream as the replica of another stream.
stream replica resume
Resumes replication from one stream to another stream Replication can be paused during autosetup and replication phases. When replication resumes, it continues from where it left off.
stream upstream add
Registers a stream as an upstream source for a given stream. For example, if you wanted to replicate messages from Stream_A to Stream_B, Stream_A would be the upstream source for Stream_B.
Stream_A
Stream_B
stream upstream list
Lists all of the streams that are replicating to a given stream.
stream upstream remove
Unregisters a stream as an upstream source for a given stream.
stream topic create
Creates a topic in the specified stream.
stream topic delete
Deletes the specified topic from the specified stream.
stream topic edit
Allows you to increase the number of partitions that are in the specified topic.
stream topic info
Lists information about a stream's topic, grouped by partition ID.
stream topic list
Lists the topics that are in a stream, as well as the number of partitions in each topic.
table
Performs functions related to HPE Ezmeral Data Fabric Database tables.
Lets you create, modify, remove, and retrieve list of tiers and tiering rules.
Lets you view and modify the trace buffer, and the trace levels for the system modules.
Displays the status page URL for the specified service.
Manages virtual IP addresses for NFS nodes.
Manages volumes, snapshots and mirrors.
Contains information about various scripts and utilities, that help setup, maintain, and monitor clusters.
This section contains reference information about various configuration files.
The pages in this section provide details about all of the types of alarms.
This section provides information associated with the Data Fabric environment.
Lists the common errors and their solutions.
Lists the best practices and performance considerations to follow when backing up HPE Ezmeral Data Fabric information.
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.
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.