I'm currently working with a few custom Knime nodes that interact with a separate Hadoop cluster, when cancelling a Knime workflow i basically want to be able to tell the cluster to kill the jobs it started. I'm thinking this would be a workflow-specific functionality rather than node-specific, so the nodes wouldn't be the place to implement this code.
Does anyone know how i could implement this ? I found something in the Knime documentation about a workflow manager, but i haven't seen any examples yet about extending its functionality. Any thought and resources regarding this would be greatly appreciated.
