Recovery

Based on your license, the PowerCenter Integration Service can automatically recover workflows and tasks based on the recovery strategy, the state of the workflows and tasks, and the PowerCenter Integration Service operating mode.

When the PowerCenter Integration Service restarts or fails over a service process, it can automatically recover interrupted workflows that are configured for recovery, based on the operating mode. When you run a workflow that is enabled for HA recovery, the PowerCenter Integration Service stores the state of operation in the $PMStorageDir directory. When the PowerCenter Integration Service recovers a workflow, it restores the state of operation and begins recovery from the point of interruption. The PowerCenter Integration Service can recover a workflow with a stopped, aborted, or terminated status.

In normal mode, the PowerCenter Integration Service can automatically recover the workflow. In safe mode, the PowerCenter Integration Service does not recover the workflow until you enable the service in normal mode

When the PowerCenter Integration Service recovers a workflow that failed over, it begins recovery at the point of interruption. The PowerCenter Integration Service can recover a task with a stopped, aborted, or terminated status according to the recovery strategy for the task. The PowerCenter Integration Service behavior for task recovery does not depend on the operating mode.

You can configure automatic task recovery in the workflow properties. When you configure automatic task recovery, the PowerCenter Integration Service can recover terminated tasks while the workflow is running. You can also configure the number of times that the PowerCenter Integration Service tries to recover the task. If the PowerCenter Integration Service cannot recover the task in the configured number of times for recovery, the task and the workflow are terminated.

The PowerCenter Integration Service behavior for task recovery does not depend on the operating mode.

If a service process shuts down while a workflow is suspended, the PowerCenter Integration Service marks the workflow as terminated. It fails the workflow over to another node, and changes the workflow state to terminated. The PowerCenter Integration Service does not recover any workflow task. You can fix the errors that caused the workflow to suspend, and manually recover the workflow.