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Understanding robot failure thresholds

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Learn about the failure thresholds and other settings through which control how Pega Robot Manager determines whether robots are underperforming.

When a robot breaches any of the thresholds, then Pega Robot Manager stops that robot. That robot cannot perform any further tasks in the current work group.

Underperforming robots can move between work groups, because the root cause of the robot's repeated failure might be related to the current work group, for example, to issues with the local application that the work group uses.

Alert evaluation time

The evaluation time interval is a dynamic snapshot of a specific time period that Pega Robot Manager uses to evaluate robot performance. The default alert evaluation time is 60 minutes.

For more information, see Configuring robot intervals.

Consecutive failures threshold

Indicates the number of consecutive failed assignments the work group can accept for each robot. The default threshold value is 5. If a robot reaches the specified threshold, Pega Robot Manager considers the robot underperforming and stops that robot.

  • The consecutive failures count does not reset when a robot stops and resumes work within the same work group. For example, consider a work group in which the consecutive failures threshold is five. If a robot fails three assignments consecutively and stops at 12 AM, then starts at 4 AM as part of the same work group and fails two more assignments, then that robot is considered underperforming.
  • The consecutive failures count does not change for a robot when it moves to another work group and then moves back. Consider an example of a robot that fails three consecutive assignments in work group A and then moves to work group B, in which that robot fails three additional consecutive assignments. When moving back to work group A, the consecutive failures count for that robot is still three.

Failed automations threshold

Indicates the percentage of assignments that can fail for each robot within the alert evaluation time. The default value is 20%, which means that a robot can fail two out of ten assignments. If a robot exceeds the specified percent of failed automations, Pega Robot Manager considers the robot underperforming and stops that robot.

Not ready threshold

Indicates how long a robot can remain in the APPLICATION NOT READY state before Pega Robot Manager considers that robot underperforming.

The APPLICATION NOT READY status indicates that the robot is active but encountered an issue, for example, while running an automation, or connecting to an application.

If a robot did not start working on any assignment before assuming the APPLICATION NOT READY state, and the robot reaches the Not ready threshold, then Pega Robot Manager stops the robot.

If a robot started working on an assignment before assuming the APPLICATION NOT READY state and the robot reaches the Not ready threshold, Pega Robot Manager waits until the assignment on which the robot is working times out and then stops the robot.

For more information, see Configuring robot intervals.

  • Handling underperforming robots

    Pega Robot Manager monitors failed robotic automations over a period of time to stop underperforming robots. By identifying and stopping robots that fail their assignments too often, Pega Robot Manager reduces the total number of failed assignments as well as the maintenance effort needed from human operators to clear such assignments.

  • Configuring robot failure tolerance

    You can configure work group-specific thresholds to ensure that robots that fail their assignments too often cannot work in the context of the current work group and generate failed assignments.

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