JobStateDraining

JOB_STATE_DRAINING indicates that the job is in the process of draining. A draining job has stopped pulling from its input sources and is processing any data that remains in-flight. This state may be set via a Cloud Dataflow UpdateJob call, but only as a transition from JOB_STATE_RUNNING. Jobs that are draining may only transition to JOB_STATE_DRAINED, JOB_STATE_CANCELLED, or JOB_STATE_FAILED.