tn.task.threadpool.pct
Percentage of the Integration Server thread pool the task manager can use to process tasks simultaneously. This is to prevent the task manager from consuming all Integration Server threads when the task manager has a large number of tasks to process. Set this property from .03 through .9. If you set the property below the range, the task manager ignores the setting and uses .03. If you set the property greater than the range, the task manager ignores the setting and uses .9. No matter how small you set the property, the task manager is guaranteed to always have at least one thread with which to execute tasks. The default is .5.