(This needs updating for final nodes.) A Dag is finished when: 1: There are no nodes remaining to submit, all post scripts have completed, the final node has completed. 1: No nodes are queued up and the ready queue is empty. This implies a cycle in the putative DAG or that something internally in DAGMan is messed up. DAGMan should exit, writing out a rescue DAG. 1: A node has exited with failure and all remaining nodes have a dependency on it completing successfully. DAGMan should exit, writing out a rescue DAG.