Given a feed/process instance this command traces it's ancestors to find what all ancestors have failed. It's useful if lot of instances are failing in a pipeline as it then finds out the root cause of the pipeline being stuck.
GET http://localhost:15000/api/instance/triage/feed/my-feed?start=2015-03-02T00:00Z&colo=local
{ "vertices": ["(FEED) my-feed (2015-03-02T00:00Z) [Unavailable]", "(PROCESS) producer-process (2015-03-01T10:00Z) [TIMEDOUT]", "(FEED) input-feed-for-producer (2015-03-01T00:00Z) [Available]"], "edges": [ { "from" : "(PROCESS) producer-process (2015-03-01T10:00Z) [TIMEDOUT]", "to" : "(FEED) my-feed (2015-03-02T00:00Z) [Unavailable]", "label" : "produces" }, { "from" : "(FEED) input-feed-for-producer (2015-03-01T00:00Z) [Available]", "to" : "(PROCESS) producer-process (2015-03-01T10:00Z) [TIMEDOUT]", "label" : "consumed by" } ] }