Home
6.0 Administration
This section describes how to manage the nodes and services that make up a cluster.
Administering Volumes
This section provide information about how to organize and manage data using volumes, a unique feature of MapR clusters.
Managing Data with Volumes
Changing or Setting Mount Information for a Volume

MapR 6.0 Documentation

6.0 Administration
This section describes how to manage the nodes and services that make up a cluster.
- Administering Users and Clusters
- Administering Nodes
- Administering Volumes
  This section provide information about how to organize and manage data using volumes, a unique feature of MapR clusters.
  - Managing Data with Volumes
  - Managing Snapshots
    This section provide information about managing snapshots.
  - Managing User Disk Usage
  - Managing Schedules
- Administering Files and Directories
- Administering Tables
  Administration of the MapR-DB is done primarily via the command line (maprcli) or with the MapR Control System (MCS). Regardless of whether the MapR-DB table is used for binary files or JSON documents, the same types of commands are used with slightly different parameter options. MapR-DB administration is associated with tables, columns and column families, and table regions.
- Administering Streams
- Administering MapR Gateways
  A MapR gateway mediates one-way communication between a source MapR cluster and a destination cluster. You can replicate MapR-DB tables (binary and JSON) and MapR-ES streams. MapR 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 MapR security and manage secure clusters.
- Managing Secure Clusters
  Provides procedures that will enable you to use MapR clusters securely.
- Administering the MapR Data Access Gateway
  The MapR Data Access Gateway is a service that acts as a proxy and gateway for translating requests between lightweight client applications and the MapR 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.
- Troubleshooting Cluster Administration
- Best Practices for Backing Up MapR Information

Changing or Setting Mount Information for a Volume

About this task

You can set or change volume mount settings using MCS, the CLI (volume create or volume mount), or the REST commands. To mount or unmount volumes under a directory, the user must have read/write permissions on the directory.

Changing or Setting Mount Information for a Volume Using the MapR Control System

Procedure

Log in to the MCS and go to the volume information page.
Select Change Mount Information from the Select Action dropdown menu.
The Change Mount Information dialog displays.
Make the necessary changes.
1. Specify whether (Yes) or not (No) to mount the volume.
2. Enter the path in the Mount Path field.
  The path must be relative to / and cannot be in the form of a global namespace path (for example, /mapr/<cluster-name>/).
Click Save Changes for the changes to take effect.

What to do next

NOTE: After changing the mount point, run maprcli volume fixmountpath command to notify CLDB of the change in the volume mount path.

Changing or Setting Mount Information Using the CLI or REST API

About this task

The basic command to mount the volume is:

maprcli volume mount -name <volume name> -path <mount path>

For complete reference information including all available options, see volume mount.