Apple Qmaster 3 - Manual (Page 29)

Note: If you need to delete a job from this batch (before you submit the batch), select
the job you want to delete and click the Remove (–) button.
5 As needed, set the following options for this batch.
• Submit To: Choose a cluster to process this batch.
• Working Directory: If relevant, enter the working directory (from which you want the
command to be executed).
• Priority: Choose the priority level from the pop-up menu. The higher the priority, the
sooner and faster this batch will be processed relative to other batches.
• Delay: Specify how long you would like the system to wait before processing this batch.
6 Click Submit to submit the batch for processing.
Using Nodes Without Apple Qmaster Installed
You can create a cluster containing one or more computers that do not have
Apple Qmaster installed. To do this, you configure an intermediary service node that
executes Apple Qmaster commands on other computers, called extended nodes. The
intermediary service node runs UNIX Apple Qmaster commands on the extended nodes
via the SSH (secure shell) UNIX program, so that the extended nodes can process
Apple Qmaster batches without having Apple Qmaster installed. This type of cluster is
called an extended node cluster.
Will Your Cluster Include Only Extended Nodes or Be Mixed?
If all the nodes in the cluster will be extended nodes (nodes that do not have
Apple Qmaster installed), the cluster needs one intermediary node that also acts as the
cluster controller. There is no need to use the Apple Qadministrator application at all if
you are creating a cluster that contains only an intermediary node and extended nodes.
All the configuration can be done in the Apple Qmaster pane in System Preferences, as
described in
Configuring an Intermediary Node for an Extended Node Cluster .
However, if you want a cluster that contains both regular service nodes and extended
nodes, configure an intermediary node (as described in
Configuring an Intermediary Node
for an Extended Node Cluster ), and then add it to a regular cluster that already has a
cluster controller. (There can be only one cluster controller per cluster.)
Configuring an Intermediary Node for an Extended Node Cluster
Before you begin, make sure that:
• The computer that will be the intermediary service node has Apple Qmaster installed
• The computers that will be the extended nodes have a UNIX-based operating system
and have SSH enabled
29 Chapter 1 Using Apple Qmaster 3