Apple Qmaster Sharing Window of Compressor

Use the Apple Qmaster Sharing window of Compressor to activate, create, or make changes to Apple Qmaster cluster-controlling and processing services (including passwords and scratch storage locations).

Figure. Diagram highlighting the “Share this computer as” section and the Services section in the Apple Qmaster pane of System Preferences.

For details about using the Apple Qmaster Sharing window of Compressor, see Options in the Apple Qmaster Sharing Window of Compressor.

Also see the Apple Qmaster User Manual for more information, including information about creating an extended node cluster that uses nodes without Apple Qmaster installed.

To open the Apple Qmaster Sharing window of Compressor
  1. Open Compressor.

  2. Choose Apple Qmaster > Share This Computer.

The Apple Qmaster Sharing window appears.

After you configure the Setup and Advanced panes, click OK to apply the settings.

Important: If you are making changes to existing settings and this computer is already providing processing services, clicking OK immediately resets this computer’s services. If this computer is also the cluster controller, any current jobs are terminated.

About Basic Settings in the Apple Qmaster Sharing Window

You can use the Setup pane within the Apple Qmaster Sharing window to configure your distributed processing system.

Figure. Apple Qmaster pane of System Preferences.
Sharing Settings
  • Share this computer: Select this checkbox to share this computer using one of the three options below. Deselect this option to not share this computer.
    • as QuickCluster with services: Select this option to create an “instant” cluster with unmanaged services. See Getting Started Quickly Using QuickClusters for more information.
    • as Services and cluster controller: Select this option to define this computer as a cluster controller when building a cluster in Apple Qadministrator. See Creating Clusters with Apple Qadministrator for more information.
    • as Services only: Select this option to make this computer a service node only. Service nodes perform the processing of batches. They can be included in This Computer Plus clusters, QuickClusters, or in managed clusters. See Managed vs. Unmanaged Services for more information.
Services Settings
QuickCluster Settings
  • Identify this QuickCluster as: Use this field to change the name of a QuickCluster. For more information about QuickClusters, see Getting Started Quickly Using QuickClusters.
  • Include unmanaged services from other computers: Select this checkbox to have this QuickCluster automatically use the available unmanaged computers on your network for distributed processing. For more information on this option, see Managed vs. Unmanaged Services.
Security Settings

About Advanced Settings in the Apple Qmaster Sharing Window

You can use the Advanced pane within the Apple Qmaster Sharing window to further configure your distributed processing system.

Figure. Advanced pane within the Apple Qmaster preferences pane
Advanced Service Settings

Use these features to schedule service restarts and service availability.

  • Restart all services every 24 hours: Selecting the “Restart all services every 24 hours” checkbox ensures a robust distributed processing system. Refreshing the services periodically prevents increased virtual memory sizes and memory leaks in third-party software.
  • Set schedule for unmanaged services: If you enabled unmanaged services, you can open a calendar interface and schedule the availability of these services to the distributed processing system. For information on using the calendar interface, see Scheduling Service Availability.
Shared Cluster Storage

Use these features to configure scratch storage for this computer’s cluster controller. For more information on cluster storage, see Using Cluster Storage.

  • Delete files older than N days: Enter the number of days temporary process files may remain on the cluster’s scratch location before they are automatically deleted. If you anticipate a transcoding session that will last up to seven days or longer, you must adjust this value.
  • Storage location: Shows the temporary cluster storage location. Click Set to choose a local folder directory to change the scratch location for the cluster’s temporary process files. See Using Cluster Storage for more information.

Use these features to configure network settings.

  • Allow discovery via Bonjour: By default, this checkbox is selected to have the Apple Qmaster distributed processing system use the Bonjour networking technology. You can deselect the “Allow discovery via Bonjour” checkbox for enhanced security. This will prevent detection of your computer over a Bonjour network. This feature requires Mac OS X v10.4 or later.
  • Enable Port Range: You can define which ports Apple Qmaster uses for service advertisements with the Enable Port Range checkbox and text fields. For more information, see Defining Ports for Service Advertisements.

Use these features to configure additional settings.

  • Log service activity to file: If this checkbox is selected, an activity log is created and updated regularly with information about the Apple Qmaster actions on this computer. Logs are stored in /Library/Application Support/Apple Qmaster/Logs. To turn this feature off, deselect the checkbox.

    Note: You can also access this log information using the Log button in Apple Qadministrator or by clicking Show Log in the Share Monitor Show Info window.

  • Maximum Active Targets: By default, a cluster can process up to 40 targets at one time. To change the maximum number of targets processed at the same time between two or more jobs, enter a number from 1 to 999.
  • Identify this computer to Qadministrator as: By default, a computer is identified on the network by its computer name (as it is entered in the Sharing pane of System Preferences). You can change this name to something more meaningful if you like, since it is the name used to identify this computer in the Apple Qadministrator application. If you are setting up a managed cluster controller, this is the name that will appear in the Apple Qadministrator Controller pop-up menu.