Project Falcon has retired. For details please refer to its Attic page.
Falcon - GET api/instance/triage/:entity-type/:entity-name

GET api/instance/triage/:entity-type/:entity-name


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.


  • :entity-type type of entity(feed/process).
  • :entity-name name of the feed/process.
  • :start instance time of the entity instance.
  • :colo <optional param> name of the colo on which you want to triage
  • doAs <optional query param> allows the current user to impersonate the user passed in doAs when interacting with the Falcon system.


It returns a json graph


Rest Call

GET http://localhost:15000/api/instance/triage/feed/my-feed?start=2015-03-02T00:00Z&colo=local&doAs=joe


    "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]"],
         "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"