Maximum CPU run queue length. The maximum number of runnable threads waiting for CPU resources on the node. The Load Balancer does not count threads that are waiting on disk or network I/Os. If you set this threshold to 2 on a 4-CPU node that has four threads running and two runnable threads waiting, the Load Balancer does not dispatch new tasks to this node.

This threshold limits context switching overhead. You can set this threshold to a low value to preserve computing resources for other applications. If you want the Load Balancer to ignore this threshold, set it to a high number such as 200. The default value is 10.

The Load Balancer uses this threshold in metric-based and adaptive dispatch modes.

Maximum memory %. The maximum percentage of virtual memory allocated on the node relative to the total physical memory size. If you set this threshold to 120% on a node, and virtual memory usage on the node is above 120%, the Load Balancer does not dispatch new tasks to the node.

The default value for this threshold is 150%. Set this threshold to a value greater than 100% to allow the allocation of virtual memory to exceed the physical memory size when dispatching tasks. If you want the Load Balancer to ignore this threshold, set it to a high number such as 1,000.

The Load Balancer uses this threshold in metric-based and adaptive dispatch modes.

Maximum processes. The maximum number of running processes allowed for each PowerCenter Integration Service process that runs on the node. This threshold specifies the maximum number of running Session

or

Command tasks allowed for each PowerCenter Integration Service process that runs on the node. For example, if you set this threshold to 10 when two PowerCenter Integration Services are running on the node, the maximum number of Session tasks allowed for the node is 20 and the maximum number of Command tasks allowed for the node is 20. Therefore, the maximum number of processes that can run simultaneously is 40.

The default value for this threshold is 10. Set this threshold to a high number, such as 200, to cause the Load Balancer to ignore it. To prevent the Load Balancer from dispatching tasks to the node, set this threshold to 0.

The Load Balancer uses this threshold in all dispatch modes.