MapR 5.0 Documentation : System Settings Views

The System Settings view group provides the following views:

Email Addresses

The Configure Email Addresses dialog lets you specify whether MapR gets user email addresses from an LDAP directory, or uses a company domain:

  • Use Company Domain - specify a domain to append after each username to determine each user's email address
  • Use LDAP - obtain each user's email address from an LDAP server

Buttons:

  • OK - save changes and exit
  • Cancel - exit without saving changes

Permissions

The User Permissions dialog lets you grant specific cluster permissions to particular users and groups.

  • User/Group field - the user or group to which permissions are to be granted (one user or group per row)
  • Permissions field - the permissions to grant to the user or group (see the Permissions table below)
  • Delete button ( ) - deletes the current row
  • [ + Add Permission ] - adds a new row

Cluster Permissions

The following table lists the actions a user can perform on a cluster, and the corresponding codes used in the cluster ACL:

Code

Allowed Action

login

Log in to the MapR Control System, use the API and command-line interface, read access on cluster and volumes

ss

Start/stop services

cv

Create volumes

a

Administrative access (can edit and view ACLs, but cannot perform cluster operations)

fc

Full control over the cluster (this enables all cluster-related administrative options with the exception of changing the cluster ACLs)

Buttons:

  • OK - save changes and exit
  • Cancel - exit without saving changes

Quota Defaults

The Configure Quota Defaults dialog lets you set the default quotas that apply to users and groups.

Use one-letter abbreviations to specify units for default quotas: 500M, 128G, for example. Do not use two-letter abbreviations, such as MB or GB.

The User Quota Defaults section contains the following fields:

  • Default User Advisory Quota - if selected, sets the advisory quota that applies to all users without an explicit advisory quota.
  • Default User Total Quota - if selected, sets the advisory quota that applies to all users without an explicit total quota.

The Group Quota Defaults section contains the following fields:

  • Default Group Advisory Quota - if selected, sets the advisory quota that applies to all groups without an explicit advisory quota.
  • Default Group Total Quota - if selected, sets the advisory quota that applies to all groups without an explicit total quota.

Buttons:

  • OK - saves the settings
  • Cancel - exits without saving the settings

SMTP

The Configure SMTP dialog lets you configure the email account from which the MapR cluster sends alerts and other notifications.

The Configure Sending Email (SMTP) dialog contains the following fields:

  • Provider - selects Gmail or another email provider; if you select Gmail, the other fields are partially populated to help you with the configuration
  • SMTP Server specifies the SMTP server to use when sending email.
  • The server requires an encrypted connection (SSL) - use SSL when connecting to the SMTP server
  • SMTP Port - the port to use on the SMTP server
  • Full Name - the name used in the From field when the cluster sends an alert email
  • Email Address - the email address used in the From field when the cluster sends an alert email.
  • Username - the username used to log onto the email account the cluster will use to send email.
  • SMTP Password - the password to use when sending email.

Buttons:

  • OK - saves the settings
  • Cancel - exits without saving the settings

Balancer Settings

The Balancer Configuration dialog enables you to configure the behaviors of the disk space and role replication Configuring Balancer Settings.

The Balancer Configuration dialog has the following elements:

  • Balancer Controls: Contains toggle settings for the Disk Balancer and the Role Balancer. Set a balancer's toggle to ON to enable that balancer.
  • Disk Balancer Settings: Configures the behavior of the disk balancer.
    • Disk Balancer Presets: These preconfigured settings enable quick setting of policies for Rapid, Moderate, and Relaxed disk balancing. The default setting is Moderate.
    • Threshold: Move this slider to set a percentage usage of a storage pool that makes the storage pool eligible for rebalancing operations. The default value for this setting is 70%.
    • % Concurrent Disk Rebalancers: Move this slider to set the maximum percentage of data that is actively being rebalanced at a given time. Rebalancing operations will not affect more data than the value of this slider. The default value for this setting is 10%.
  • Role Balancer Settings: Configures the behavior of the role balancer.
    • Role Balancer Presets: These preconfigured settings enable quick setting of policies for Rapid, Moderate, and Relaxed role balancing. The default setting is Moderate.
    • % Concurrent Role Rebalancers: Move this slider to set the maximum percentage of data that is actively being rebalanced at a given time. Role rebalancing operations will not affect more data than the value of this slider. The default value for this setting is 10%.
    • Delay For Active Data: Move this slider to set a time frame in seconds. Role rebalancing operations skip any data that was active within the specified time frame. The default value for this setting is 600 seconds.

Buttons:

  • OK - saves the settings
  • Cancel - exits without saving the settings

HTTP (versions 2.1 through 3.0.2 only)

In versions 2.1 through 3.0.2, the MCS includes a Configure HTTP dialog that lets you configure access to the MapR Control System via HTTP and HTTPS. As an alternative, you can edit web.conf, which resides in the /opt/mapr/conf directory.

In version 3.1 and later, the HTTP settings can only be modified by editing web.conf directly.

The sections in the Configure HTTP dialog let you enable HTTP and HTTPS access, and set the session timeout, respectively:

  • Enable HTTP Access - if selected, configure HTTP access with the following field:
    • HTTP Port - the port on which to connect to the MapR Control System via HTTP
  • Enable HTTPS Access - if selected, configure HTTPS access with the following fields:
    • HTTPS Port - the port on which to connect to the MapR Control System via HTTPS
    • HTTPS Keystore Path - a path to the HTTPS keystore
    • HTTPS Keystore Password - a password to access the HTTPS keystore
    • HTTPS Key Password - a password to access the HTTPS key
  • Session Timeout - the number of seconds before an idle session times out.

Buttons:

  • OK - saves the settings
  • Cancel - exits without saving the settings

Manage Licenses

The License Management dialog lets you add and activate licenses for the cluster, and displays the Cluster ID and the following information about existing licenses:

  • Name - the name of each license
  • Issued - the date each license was issued
  • Expires - the expiration date of each license
  • Nodes - the nodes to which each license applies

Fields:

  • Cluster ID - the unique identifier needed for licensing the cluster

Buttons:

  • Add Licenses via Web - navigates to the MapR licensing form online
  • Add License via Upload - alternate licensing mechanism: upload via browser
  • Add License via Copy/Paste - alternate licensing mechanism: paste license key
  • Apply Licenses - validates the licenses and applies them to the cluster
  • Cancel - closes the dialog.

Metrics

The Configure Metrics Database dialog enables you to specify the location and login credentials of the MySQL server that stores information for Job Metrics.

Fields:

  • URL - the hostname and port of the machine running the MySQL server
  • Username - the username for the MySQL metrics database
  • Password - the password for the MySQL metrics database

Buttons:

  • OK - saves the MySQL information in the fields
  • Cancel - closes the dialog

Attachments:

MailConfig.png (image/png)
LicenseManagement.png (image/png)
QuotaConfiguration.png (image/png)
MetricsConfig.png (image/png)
ConfigureSMTP.png (image/png)
BalancerConfiguration.png (image/png)
gray-x.png (image/png)
EmailConfig.png (image/png)
UserPermissions.png (image/png)