Groups

Groups enforce conditions across multiple tasks. Four types of group are available:

• Timeout groups fail when the contained tasks hold the token longer than a set amount of time.
• Retry/Catch groups will retry from their first task should the contained set of tasks fail.
• Load Balance groups schedule the contained tasks across a pool of assets.
• Substitute User groups execute their contained tasks with specified security credentials.

Group Success and Failure

All groups have the ability to succeed, fail, and influence the workflow just as tasks do.

If the conditions of Group_1 are met and the tasks it contains all succeed, it is successful and Task_4 is executed.

In this example, Task_3 fails which causes Group_1 to fail.

If the conditions of Group_1 are not met, Group_1 fails and any executing task inside the group is canceled. Since Group_1 has no outgoing edge which is satisfied on failure, the sequence as a whole also fails.

Recovery Edges

Groups, like tasks may have an edge that is satisfied when the group fails.

In the example above, Task_3 has timed out Group_1. The group condition has failed and task execution has been canceled. The "on failure" edge connecting Group_1 and Task_5 becomes satisfied, facilitating recovery. Task_5 is executed and because it succeeds, the sequence succeeds.