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Apple Compressor (4.0) User Manual

Page 255

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Chapter 8

Use Apple Qmaster to set up a distributed processing system

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Advanced Service Settings
Use these options to schedule service restarts and service availability.

Restart all services every 24 hours: Selecting this 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
dialog and schedule the availability of these services to the distributed processing system. For
information about using the calendar interface, see

Schedule service availability

on page 229.

Shared Cluster Storage
Use these options to configure scratch storage for this computer’s cluster controller. For more
information about cluster storage, see

Use cluster storage

on page 232.

Delete files older than N days: Enter the number of days temporary process files may remain
on the cluster’s scratch location before they’re 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. To change the location where
the cluster’s temporary process files are stored, click Set and choose a new local folder.

Network
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 this
checkbox for enhanced security. This will prevent detection of your computer over a Bonjour
network. This feature requires OS X v10.7.5 or later.

Use network interfaces: Restrict distributed processing activity to a particular network interface
card by choosing it from this pop-up menu. If you do this on a service node computer, use a
different computer to submit Compressor jobs and batches.

Enable Port Range From: You can define which ports Apple Qmaster uses for service
advertisements with the Enable Port Range checkbox and text fields. For more information,
see

Use cluster storage

on page 232.

Extras
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 off this feature, deselect the checkbox.
Note: You can also access this log information by clicking 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 Apple Qadministrator as: By default, a computer is identified on the
network by its computer name (as it’s entered in the Sharing pane of System Preferences).
You can change this name to something more meaningful if you like, because it’s the name
used to identify this computer in Apple Qadministrator. If you’re setting up a managed cluster
controller, this is the name that appears in the Apple Qadministrator Controller pop-up menu.