Locating Orchestrator Runbooks using bad credentials

A problem recently encountered was causing major headaches. There was a runbook somewhere in the system that had an action running with the security credentials of a user that had left sometime ago. Their account had recently been disabled and the Orchestrator was logging thousands of errors and causing the Orchestrator database to grow at a massive rate. OBJECTINSTANCEDATA was growing at thousands of rows a second and hit 50 million rows and 16GB in size after only a few days.