Major Description
It could be useful to add a configuration property that lets users specify a list of action that will cause Oozie to automatically suspend the workflow upon reaching any of those actions; like breakpoints in a debugger. To continue running the workflow, the user would simply use the -resume command.
For example, a user could specify oozie.suspendpoints=mr-node,my-pig-action,my-fork in their job.properties file and when Oozie is about to execute any of those three actions, it would suspend the workflow.