Setting EXTRAConditions

EXTRAConditions can be specified in Discriminators, which are attached to Services in the GridServer Administration Tool at Services > Services > Service Conditions. You can specify that one or more comparisons of EXTRACondition to resource criteria must be true, or the Task is not given to an Engine.

When creating a Discriminator using an EXTRACondition, there is a modifier column for each Condition, which you can set to a positive or negative number. When a Task is assigned to an Engine, the scheduler modifies the EXTRACondition’s external resource value by adding the modifier value. Note that the external resource value is not automatically changed when a Task completes; you must script this using the REST interface, as described above.