discoproject/disco — pull request #559 by pooya (2014-07-22 13:10:01+00:00)
Title: job_coordinator: terminate a job if there is a scheduling failure in new...

..._task.

The kind of scheduling failures that arise from calling new_task are not
recoverable.

The job_coordinator cannot simply retry the failed task because it does not have
enough information about whether the previous submission was successful or not.