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HPE Ezmeral Data Fabric – Customer-Managed 7.9.0 Documentation
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  • 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.

    • Administering Users and Clusters

      Lists topics that help manage a data-fabric cluster.

    • Administering Nodes

      Provides a synopsis of managing nodes in a cluster.

    • Administering Volumes

      This section provide information about how to organize and manage data using volumes, a unique feature of HPE Ezmeral Data Fabric clusters.

    • Administering Files and Directories

    • Administering Tables

      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.

    • Administering Streams
    • Administering Data Fabric Gateways

      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.

    • Administering Services
    • Monitoring the Cluster

      This section describes how to monitor the health and performance of a MapR cluster.

    • Configuring Security

      Describes how to configure security and manage secure clusters.

    • Managing Secure Clusters

      Provides procedures that will enable you to use Data Fabric clusters securely.

    • Administering the Data Access Gateway

      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.

    • Planning for High Availability
    • Administrator's Reference

      This section contains in-depth reference information for the administrator.

      • maprcli and REST API Syntax

        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.

      • MinIO Client (mc) Commands

        Lists mc commands that you can use to perform operations, such as creating and editing buckets and accounts in HPE Ezmeral Data Fabric Object Store.

      • Utilities

        Contains information about various scripts and utilities, that help setup, maintain, and monitor clusters.

        • configure.sh

          Describes the syntax and parameters of the configure.sh script that you run for a number of tasks including setting up HPE Ezmeral Data Fabric client nodes, and configuring services for a node.

        • configure-crosscluster.sh

          Use the configure-crosscluster.sh utility to set up cross-cluster security between two clusters.

        • cldbguts

          Monitors the activity of the Container Location Database (CLDB). This utility prints information about the CLDB service that is running on the node from which you run the utility.

        • disksetup

          Describes the disksetup command that formats disks for use by HPE Ezmeral Data Fabric storage.

        • ectool

          Dumps or checks the validity of the stripelets in the backend volume that is associated with the volume configured for warm tiering.

        • expandaudit

          Describes how to use the expandaudit utility to expand IDs captured in the audit logs to their corresponding names.

        • fcdebug

          Dynamically sets the log level to debug a library.

        • fsck

          Detects and fixes inconsistencies in the file system.

        • gfsck

          Describes how you can use the gfsck command, under the supervision of HPE Ezmeral Data Fabric Support or Engineering, to perform consistency checks and appropriate repairs on a volume, or a volume snapshot.

        • guts

          guts is a tool to measure/analyse performance. In the default mode, it prints one line every second, and counts the number of operations or bytes-processed in one second intervals. guts is an internal utility, and is subject to change without notice.

        • manageSSLKeys.sh

          Use the manageSSLKeys.sh utility to create and manage SSL certificates.

        • mapr-support-collect.sh

          Collects information about a cluster's recent activity, to help Data Fabric Support diagnose problems.

        • mapr-support-dump.sh

          Collects node and cluster-level information for the node on which you invoke the script.

        • maprlogin

          Authenticates logins to secure HPE Ezmeral Data Fabric clusters.

        • mrconfig

          The mrconfig commands let you create, remove, and manage storage pools, disk groups, and disks; and provide information about containers.

          • mrconfig cntr

            Discusses the mrconfig cntr commands that allow you to manage containers and container replicas.

          • mrconfig dbinfo

            Each instance of the file server on a node is responsible for processing and tracking activities that result from running database commands. The mrconfig dbinfo command displays information about the activities, including information related to containers, tablets, storage pools, tags, and threads processing operations on tables.

          • mrconfig dg

            This section discusses the mrconfig dg commands that allow you to configure disk groups.

          • mrconfig disk

            This section discusses the mrconfig disk commands.

          • mrconfig info

            The mrconfig info commands provide information about memory, threads, volumes, containers and other information about the Data Fabric file system.

          • mrconfig mastgateway

            This section describes the mrconfig mastgateway commands that allow you to test PUT, GET, and DELETE operations on the corresponding tier.

          • mrconfig rdma

            Dumps RDMA server and connection information.

            • mrconfig rdma dumpServerInfo

              Displays information about the enabled RDMA servers, if any.

            • mrconfig rdma listEndPoints

              Displays RDMA connection information.

          • mrconfig sp

            The mrconfig sp commands create and control storage pools.

          • mrconfig s3

            The mrconfig s3 commands display bucket statistics.

        • mrdirectorystats

          Prints the space usage for each directory, for a container.

        • mrdiagnostics

          Gathers node metrics.

        • mrfscmd

          Returns the path to the file specified by ID (fid).

        • stubfuse

          Simulates a FUSE mount point to determine its read and write performance.

      • Configuration Files

        This section contains reference information about various configuration files.

      • Alarms Reference

        The pages in this section provide details about all of the types of alarms.

      • HPE Ezmeral Data Fabric Environment

        This section provides information associated with the Data Fabric environment.

    • Troubleshooting Cluster Administration

      Lists the common errors and their solutions.

    • Best Practices for Backing Up HPE Ezmeral Data Fabric Information

      Lists the best practices and performance considerations to follow when backing up HPE Ezmeral Data Fabric information.

    • IPv6 Support in Data Fabric

      Describes the IPv6 support feature for Data Fabric.

  • 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.

  • 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.

mrconfig rdma

Dumps RDMA server and connection information.

For an introduction to RDMA, see Remote Direct Memory Access.

  • mrconfig rdma dumpServerInfo
    Displays information about the enabled RDMA servers, if any.
  • mrconfig rdma listEndPoints
    Displays RDMA connection information.
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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
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