User Guide
8
Apple Qmaster Distributed Processing and Xsan
Using Apple Qmaster distributed processing on an Xsan may cause mounting
problems when restarting an Apple Qmaster distributed processing cluster controller.
Restart Apple Qmaster and Xsan computers in the following order:
1
Turn off the cluster controller by clicking Stop Sharing in the Apple Qmaster pane in
System Preferences.
2
Restart the Apple Qmaster cluster controller computer.
3
Wait for the Xsan volume to mount on the desktop.
4
Click Start Sharing in the Apple Qmaster pane in System Preferences to restart
the controller.
Wide Area Network Browsing
You can enable wide area network (WAN) browsing by selecting the “Allow wide area
Bonjour in domain” checkbox in the Apple Qmaster pane in System Preferences. For
more information about using WAN browsing with your distributed processing
network, visit http://developer.apple.com/bonjour.
Late-Breaking News About Compressor 2 and Distributed Processing
The following news items are relevant if you are using the Apple Qmaster distributed
processing system with Compressor. The Compressor 2 distributed processing feature is
limited to computers that have either Final Cut Studio or DVD Studio Pro 4 installed.
Cluster Storage Capacity
By default, the Apple Qmaster distributed processing system saves temporary
process files in the /var/spool/qmaster directory on the startup disk of the cluster
controller. Computers in the cluster will access this location as needed. If you are
processing large source media files that exceed the available storage space on the
startup disk, you may run out of storage space on that disk. There are a number of
things you can do to address this.
If cluster storage capacity is low, do any of the following:
m
Change the cluster storage location to a disk with more free space. For more
information, see “Adjusting Cluster Storage Settings,” below.
m
Configure cluster storage settings to delete files more frequently. For more information,
see “Adjusting Cluster Storage Settings,” below.
m
Compressor users can set Cluster Options preferences (Compressor > Preferences) to
“Never copy source to cluster.” For more information, see the
Compressor 2 User Manual
.