Distributed Processing Setup Guide
Table Of Contents
- Apple Qmaster Distributed Processing Setup Guide
- Contents
- Welcome to Distributed Processing
- Distributed Processing Basics
- Getting Started Quickly
- Preparing a Network for Distributed Processing
- The Minimum You Need to Know
- Example of a Minimal Distributed Processing Network
- Using Compressor AutoClusters
- Other Possible Components of a Distributed Processing Network
- Example of an Expanded Distributed Processing Network
- Sample Setup for Part-Time Processing on Desktop Computers
- Configuring Access for Part-Time Distributed Processing
- Setting Up for Part-Time Distributed Processing with Shake
- Additional Steps for Distributed Processing with Shake
- The Interfaces
- Creating Clusters
- An Overview of Configuring a Cluster
- Configuring Service Nodes and Cluster Controllers
- Creating Clusters with Apple Qadministrator
- About QuickClusters
- Administering Clusters
- Using the Command Line
- Installing Apple Qmaster from the Command Line
- Using the Command Line for Distributed Processing
- Using Scripts to Run Apple Qmaster, Compressor, and Batch Monitor
- Appendix
- Resources for Solving Problems
- Solutions to Common Problems
- Contacting AppleCare Support
9 Double-click the file in the Batch window and play it in the Preview window to verify the
integrity of the clip.
10 In the Batch window, assign settings and destinations to the selected file as necessary.
11 Click the Submit button.
The submit dialog appears.
12 Do one of the following:
• Choose the intended cluster from the Cluster pop-up menu.
• Select the “Include unmanaged services on other computers” checkbox to use the
AutoCluster feature. See Using Compressor AutoClusters for more information.
13 Click Submit.
QuickTime Reference Movies
If you submit a reference movie for distributed processing, the Apple Qmaster distributed
processing system will automatically copy the appropriate media files to the processing
cluster. For the best performance, you can avoid this file transfer step by making sure
that the media files specified in the reference movie are available to each node of the
Apple Qmaster cluster.
Cluster Settings for Extended Transcoding Sessions
If you are using Compressor 2 or later for distributed processing, and you anticipate a
transcoding session that will last up to seven days or longer, you must make an adjustment
in the Advanced section of the Apple Qmaster preferences pane. By default, temporary
process files may remain on a cluster’s scratch location for seven days before they are
automatically deleted. You can increase this value (the number of days) in the
Apple Qmaster pane of System Preferences.
Cleaning Up Cluster Storage
If you are using cluster storage and an error occurs, partial files may be left on the
designated cluster storage location. Check the designated cluster storage location to
make sure no partial media files are left there. If you find partial media files, delete them
and submit the job again.
Using Apple Qmaster with an NFS Server
By default, Apple Qmaster uses /etc/exports to define its Cluster Storage export. This can
cause a conflict if you defined an NFS export in your local NetInfo database. When you
enable a controller using Apple Qmaster 2 or later, Apple Qmaster uses /etc/exports, not
entries defined in your NetInfo database. To work around this issue, either move the
exports to /etc/exports, or move the controller to a computer that doesn’t export anything.
91Appendix Solving Problems