Starting, Stopping and Modifying Queues

As a developer and object designer, or as an administrator user, you define the Queue objects in which your executable objects will be processed. After creating a Queue, you start it. Queues can be stopped and modified too.

Starting/Stopping a Queue

Queue objects cannot be executed. You start and stop them.

When stopping a Queue, Workflows and Schedules change their state to STOP - Queue processing has been stopped. This does not affect any other active tasks, though. Any other objects that are activated in a stopped Queue get the Waiting for queue slot status. If you start the Queue again, the tasks that were in a "waiting" state can also start.

You start and stop Queues from the Administration and from the Process Monitoring perspectives:

Administration perspective
1. Select Queues in the Administration navigation pane.
2. Select one or more Queues and right-click to select Stop/Start Queue.
Process Monitoring perspective
1. In the Tasks pane, select Queue from the Grouped by dropdown list. The pane displays all Queues available for the Client.
2. Right-click a Queue and select Start/Stop Queue.

An icon helps you identify the status of the Queue object, a green triangle indicating an active queue and a red square an inactive one.

Modifying a Queue

Note: It is not possible to modify Queues in Client 0.

After you have defined a Queue object, you can still edit its definition in a Client other than Client 0:

In the Administration perspective, where you have two options:
1. Right-click one or more Queues to select Open. The Queue definition page (one for each selected Queue) opens in edit mode.
2. Right-click one Queue to select Modify. A dialog opens in which you can modify the Maximum Slots of concurrent tasks and the Priority.
In the Process Monitoring perspective, where you can only edit the Maximum Slots of concurrent tasks and the Priority.

To do so, on the Tasks navigation pane on the left hand side, select Queues and right-click one to select Modify.