HPE Ezmeral Data Fabric 6.1.x is In Maintenance and transitions to "End of Maintenance" in June 2024. Please see the latest documentation.

About MapR 6.1
This site contains the main documentation for Version 6.1 of the MapR Converged Data Platform, including installation, configuration, administration, and reference information.
6.1 Installation
This section contains information about installing and upgrading MapR software. It also contains information about how to migrate data and applications from an Apache Hadoop cluster to a MapR cluster.
6.1 MapR Data Platform
MapR Data Platform is the industry-leading data platform for AI and analytics that solves enterprise business needs.
6.1 Administration
This section describes how to manage the nodes and services that make up a cluster.
6.1 Development
This section contains information related to application development for Ezmeral ecosystem components and MapR Data Platform products, including the file system, Database (Key-Value and JSON), and Event Streams.
- Application Development Process
  Before you start developing applications on the MapR Data Platform 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.
- MapR XD and Apps
  The following sections provide information about accessing the MapR XD with C and Java applications.
- MapR Database and Apps
  This section contains information about developing client applications for JSON and key-value tables.
- MapR Event Store For Apache Kafka and Apps
  MapR Event Store For Apache Kafka brings integrated publish and subscribe messaging to MapR Data Platform.
- MapReduce and Apps
  This section contains information associated with developing YARN applications.
- MapR Data Science Refinery
  The MapR Data Science Refinery product is an easy-to-deploy and scalable data science toolkit with native access to all platform assets and superior out-of-the-box security.
- MapR Data Fabric for Kubernetes
  This section describes how to leverage the capabilities of the MapR Data Fabric for Kubernetes.
- Ecosystem Components
  The following sections provide information about each open-source project that is supported by the MapR Data Platform.
  - Ezmeral Ecosystem Packs
  - AsyncHBase
  - Cascading
  - Apache Drill
  - Flume
  - HBase
  - HBase Client and MapR Database Binary Tables
  - HCatalog
  - Hive
  - HttpFS
  - Hue
  - Impala
  - Livy
    Apache Livy is primarily used to provide integration between Hue and Spark.
  - MapR Event Store For Apache Kafka Clients and Tools
    Describes the supported MapR Event Store For Apache Kafka tools and clients.
  - S3 Gateway
    The S3 gateway is a service that provides an S3-compatible interface to expose data in MapR Data Platform as objects. The S3 gateway manages all inbound S3 API requests to put data into and get data out of cloud storage.
  - Myriad
    - Configure Myriad
    - Use Myriad
      - Starting Resource Manager
        A Resource Manager for Myriad must be launched before the Myriad UI becomes available.
      - Launching Myriad Services
        The Myriad services are launched automatically and accessed from their designated ports.
      - Monitoring Myriad
        Myriad is monitored using several application user interfaces.
      - Using Multiple YARN Clusters
        This topic describes how to create multiple YARN clusters and to run Hadoop jobs in a multiple YARN cluster environment.
      - Modifying Myriad Profiles
        Myriad profiles can be changed and expanded depending on your requirements.
    - Myriad REST API
    - Troubleshoot Myriad
      Explains how to troubleshoot Myriad.
  - Oozie
  - Pig
  - Sentry
  - Apache Spark
  - Sqoop
  - YARN
  - Zeppelin
- Maven and MapR
  This section discusses topics associated with Maven and MapR.
- Developer's Reference
  This section contains in-depth information for the developer.
- API Documentation
  MapR Data Platform supports public APIs for MapR File System, MapR Database, and MapR Event Store For Apache Kafka. These APIs are available for application-development purposes.
Other Docs
This section contains release-independent information, including: MapR Installer documentation, Ecosystem release notes, interoperability matrices, security vulnerabilities, and links to other MapR version documentation.
Glossary
Definitions for commonly used terms in MapR Converged Data Platform environments.

Monitoring Myriad

Myriad is monitored using several application user interfaces.

IMPORTANT This component is deprecated. Hewlett Packard Enterprise recommends using an alternate product. For more information, see Discontinued Ecosystem Components.

The following user interfaces are used to monitor application processes, tasks, configurations, and flexup or flexdown resources:

Marathon UI
Mesos UI
Myriad UI
Control System

Marathon UI

The Marathon UI is used to manage application processes. The Apps panel provides created, suspended, scaled, and refreshed as well as restarted and destroyed. To view task details, click on the application link.

The following screenshot shows the Marathon home page:

The following screenshot shows the Marathon application details page:

Mesos UI

The Mesos UI is used to monitor Mesos active and completed tasks, provide cluster information, provide active and terminated frameworks, Mesos secondary information, and Offers.

The following screenshot shows the Mesos home page:

The following screenshot shows the Mesos Frameworks page:

Myriad UI

The Myriad UI is used to flexup or flexdown Node Manager instances, that is, to allocate more or less resources using a predefined configuration as well as to monitor your tasks and display Myriad configuration.

The main Myriad UI page shows the underlying REST API.
The Flex button allows you to flex up or flex down instances by specifying the profile and number of instances to flex.
NOTE At this time, only one (1) instance is allowed.
The Task button shows the current active, killable, pending, and staging tasks.
The Config button shows the defined profiles and the parameters in the Myriad configuration file (myriad-config-default.yml).

Flexing up and flexing down changes are reflected in the Mesos UI under the Myriad Framework name.

The following screenshot shows the Myriad home page:

The following screenshot shows the Myriad Flex page:

The following screenshot shows the Myriad Tasks page:

The Control System

The Control System is used as a central access point to navigate to Mesos Primary instance, Mesos Secondary instance, Mesos-DNS and Marathon information about the configured and running services in your cluster.

The following screenshot shows the Control System interface when Myriad is installed and configured:

The following Control System panel shows the Myriad services: