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.
- Administering Files and Directories
  - Using Global File System Checking
  - Setting MapR-FS Permissions
  - Managing File and Directory ACEs
    Describes the implications of setting access control expressions on files and directories.
  - Managing Chunk Size
  - Managing Compression
  - Managing Hard Links
  - Managing Extended Attributes
  - Managing Core Files
  - Migrating Files From MapR Edge Cluster to AWS S3
- 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

Configuring the File Migration Service Using the Properties File

About this task

To configure the File Migration Service:

Procedure

Stop the service (if it is currently running).
See Starting, Stopping, and Restarting the Service Using the CLI for more information.
Make a copy of the /opt/mapr/filemigrate/filemigrate-1.0.0/conf/FileMigrate.properties.default and rename the file to FileMigrate.properties if you have not yet set any properties and wish to start from the defaults, as in the following example.
```
cp /opt/mapr/filemigrate/filemigrate-1.0.0/conf/FileMigrate.properties.default FileMigrate.properties
```
Alternatively, you can use maprfs:///var/mapr/filemigrate/FileMigrate.properties file if you have already used the UI to set some properties and want to perform further edits manually. See Managing Policies for more information.
Edit the FileMigrate.properties file to change the settings for the service, if/where necessary, and save the file.
For more information, see FileMigrate.properties.
Copy the FileMigrate.properties file to /var/mapr/filemigrate/ directory, as in the following example.
```
hadoop fs -copyFromLocal /tmp/FileMigrate.properties /var/mapr/filemigrate
```
NOTE: If the directory does not already exist, create it by running the hadoop fs -mkdir command. The FileMigrate.properties file contains sensitive information and the recommendation is to limit read access to the directory. If the service creates the directory, by default, only the MAPR_USER and MAPR_GROUP have read access to the directory.
Restart the service using the maprcli command, as in the following example.
```
maprcli node services -name filemigrate -nodes <node to restart> -action restart
```