MapR 5.1 is at End of Life (EOL) and no longer supported. Please see the latest documentation. This documentation is not being updated.

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5.1 Administration
This section contains administration information such as managing your cluster, data, users, jobs and security information such as configuring your security environment and auditing.
Security Guide
Configuring MapR Security
Describes how to enable security features and configure the components on a secure cluster.
Configuring a MapR Cluster to Access a HDFS Cluster
Describes how to create a connection between a MapR cluster and an HDFS cluster.
Verifying access to HDFS cluster
Describes how to verify access to a HDFS cluster from a MapR cluster.

MapR 5.1 Documentation

5.1 Administration
This section contains administration information such as managing your cluster, data, users, jobs and security information such as configuring your security environment and auditing.
- Administrator Guide
- Security Guide
  - Security Overview
    Describes the security features of the MapR Converged Data Platform.
  - Security Architecture
    Describes the default security architecture and additional authentication and encryption capabilities.
  - Logging into a Secure Cluster
    Describes how to use tickets to access a secure MapR cluster.
  - Tickets and Certificates
    Describes how tickets and certificates authenticate users and servers to a cluster.
  - Getting Started with MapR Security
    Describes the two core scenarios that allow quick implementation of security features.
  - Configuring MapR Security
    Describes how to enable security features and configure the components on a secure cluster.
    - Enabling and Disabling Security Features on Your Cluster
      Describes how to enable and disable wire-level security on the nodes of your cluster.
    - Configuring Impersonation
      Describes how to use impersonation to centralize control over user actions.
    - Running Commands on Remote Secure Clusters
      Describes how to manage multiple secure clusters from one secure cluster.
    - Adding Cross-Cluster Tickets to Secure Clusters
      Describes how to add cross-cluster tickets to secure clusters that push and pull data.
    - PAM Configuration
      Describes how to use PAM to verify passwords.
    - Secured TaskTracker
      Describes how to control user access to TaskTracker.
    - Access Control Lists
      Describes how to create different types of ACLs.
    - Access Control Expressions
      Describes how to use ACEs to control user permissions for MapR-DB tables.
    - Permissions
      Describes requirements for API user permissions and file permissions.
    - Securing Open Source Components
      Describes how to use JAAS to configure security for open source components.
    - Configuring Kerberos User Authentication
      Describes how to configure Kerberos for the CLDB.
    - Mirror Volumes and Secure Clusters
      Describes how to configure security for the source and destination clusters of a mirror.
    - Configuring a MapR Cluster to Access a HDFS Cluster
      Describes how to create a connection between a MapR cluster and an HDFS cluster.
      - Case 1: Insecure MapR and HDFS Clusters
        Describes how to configure access between an insecure MapR cluster and an insecure HDFS cluster.
      - Case 2: Secure MapR and HDFS Clusters
        Describes how to configure access between a secure MapR cluster and a secure HDFS cluster.
      - Case 3: Secure MapR Cluster and Insecure HDFS Cluster
        Describes how to configure access between a secure MapR cluster and an insecure HDFS cluster.
      - Case 4: Secure MapR Cluster with Secure and Insecure HDFS Cluster
        Describes how to configure access between a secure MapR cluster and an HDFS cluster that is both secure and insecure.
      - Case 5: Insecure MapR Cluster with Secure HDFS Cluster
        This case is not supported.
      - Verifying access to HDFS cluster
        Describes how to verify access to a HDFS cluster from a MapR cluster.
  - Auditing of Cluster Administration and Operations on Directories, Files, Tables, and Streams
    Describes how to process and use audit records to improve data analysis.

Verifying access to HDFS cluster

Describes how to verify access to a HDFS cluster from a MapR cluster.

Use the following commands to verify access to the remote HDFS cluster from the MapR cluster. If the remote HDFS cluster is secure, use kinit to obtain the necessary credentials beforehand.

CDH3 Only

hadoop fs -ls hdfs://<namenode_host:port>/

Other HDFS Versions

hadoop fs -ls webhdfs://<namenode_host_running_webhdfs_service>/