Apple Compressor 3 - Manual (Page 357)

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.
Apple Qmaster Distributed Processing and Xsan
Here are some tips on using the Apple Qmaster distributed processing system with Xsan.
Restarting Apple Qmaster and Xsan
Using previous versions of 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 of
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 of System Preferences to restart the
controller.
Xsan Compatibility
Xsan 1.3 is not compatible with Compressor and the Apple Qmaster distributed processing
system when Xsan media drives are used for cluster (scratch) storage. To use Xsan with
Apple Qmaster 2.3, update to Xsan 1.4.
To download and install Xsan 1.4
µ
Go to http://www.apple.com/support/xsan .
Compressor Command-Line Usage Requires Login
Although it is possible to use the command line to run an Apple Qmaster distributed
processing network, each Compressor service node (each computer providing Compressor
distributed processing services) must be logged in (with a Mac OS X user name and
password) for full functionality.
Create Blu-ray Disc Job Action
If you attempt to use the HD DVD H.264 setting with a Create Blu-ray Disc job action, an
error message will result. The following is a better-worded version of the error message:
“Cannot create a Blu-ray Disc because there is no target that is either a Blu-ray Disc MPEG-2
video elementary stream or a Blu-ray Disc H.264 stream."
357 Appendix B Solving Problems