MapR 5.2 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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5.2 Cluster Administration
This section contains information on administering the cluster and MapR-DB, configuring Gateways, and configuring and managing particular aspects of the MapR security infrastructure.
Administering MapR-DB
Administration of the MapR-DB is done primarily via the commmand 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 Tables
MapR-DB supports two types of table: binary tables and JSON tables. This section covers how to create, edit, and delete tables, as well as how to set parameter values, display parameter values, grant permissions and access, replicate tables, and more.

MapR 5.2 Documentation

5.2 Cluster Administration
This section contains information on administering the cluster and MapR-DB, configuring Gateways, and configuring and managing particular aspects of the MapR security infrastructure.
- Administering the Cluster
  This section describes how to manage the nodes and services that make up a cluster.
- Monitoring the Cluster
  This section describes how to monitor the health and performance of a MapR cluster.
- Configuring and Managing MapR Gateways
  A MapR gateway mediates one-way communication between a source MapR cluster and a destination cluster. MapR-DB tables and MapR Streams streams can be replicated.
- Administering MapR-DB
  Administration of the MapR-DB is done primarily via the commmand 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 Tables
    MapR-DB supports two types of table: binary tables and JSON tables. This section covers how to create, edit, and delete tables, as well as how to set parameter values, display parameter values, grant permissions and access, replicate tables, and more.
    - Configuring Maximum Row Sizes
      The default maximum row size at installation is 32MB. You can configure this maximum by changing the value of the mfs.db.max.rowsize.kb parameter with the maprcli config save command.
    - Creating Tables
      There are several methods that you can use to create MapR-DB tables including the maprcli, and hbase shell, mapr dbshell commands and through the MCS.
    - Editing Tables
      Use either the maprcli command table edit or MCS to edit the attributes of a MapR-DB binary or JSON table. You can also use the HBase shell to edit a binary table.
    - Dropping Tables
      Use either the maprcli command table delete or MCS to drop a MapR-DB table.
    - Displaying Table Information
      Use either a maprcli command or MCS to display all of the information that MapR-DB stores about a particular table.
    - Accessing MapR Binary Tables
      This section discusses how to access MapR binary tables via HBase APIs, hbase shell, and MapReduce Jobs.
    - Enabling or Disabling Auditing
      Use a maprcli command or MCS to enable or disable auditing of the actions taken on a MapR-DB table.
    - Permission Types for JSON Tables
      By using access-control expressions (ACEs), you can grant or deny access to fields and column families that are in JSON tables.
    - Granting Permissions on Tables
      When you are creating or editing a table, you can grant or deny permissions on that table.
    - Indexing MapR-DB Binary Tables with Elasticsearch
      This section discusses using Elasticsearch to index MapR-DB binary tables.
    - Listing Tables in a Directory
      Use either of these methods to list the tables that are in a path in MFS.
    - Loading Documents into JSON Tables
      There are three command-line utilities for loading documents into JSON tables: mapr copytable, mapr importtable (which works in conjunction with the mapr exporttable utility), and mapr importJSON
    - Loading Data into Binary Tables
      A bulkload can be performed as a full bulkload or as an incremental bulkload.
    - Migrating between Apache HBase and MapR-DB Binary Tables
    - Performing Filesystem Operations on MapR-DB Tables
    - Setting up Table Replication
      Configuring clusters for participation in replication topologies involves configuring two or more gateways on destination clusters and, if the clusters are secure, setting up secure communications between the clusters.
    - Setting the bulkload Flag on Tables
      Use a maprcli command or MCS to set the bulkload flag on tables. For MapR-DB binary tables, you can also set this flag with the HBase shell.
    - Setting the Table Type
      When you are creating a table, you can specify whether the table is to be a binary table or a JSON table.
  - Administering Column Families and Columns
    This section covers overviews of column families in binary tables and JSON tables, how to create column families, alter them, delete them, set permissions on them, and set and display parameter values.
  - Administering Table Regions
    This section covers the advanced topics about the tasks of administering table regions.
  - Language Support for MapR-DB Tables
    This section lists the human languages that MapR-DB tables can store, retrieve, and process.
- Configuring Security
  Describes tasks for configuring MapR security, managing secure clusters, and administering auditing.
- Administrator's Reference
  This section contains in-depth reference information for the administrator.
- Glossary
  This section contains defintions for commonly used terms in MapR Converged Data Platform environments.

Administering Tables

MapR-DB supports two types of table: binary tables and JSON tables. This section covers how to create, edit, and delete tables, as well as how to set parameter values, display parameter values, grant permissions and access, replicate tables, and more.

For a conceptual overview of binary tables, see MapR-DB Binary Tables.

For a conceptual overview of JSON tables, which contain OJAI documents, see MapR-DB JSON Tables.