Understanding Pipeline States

A pipeline state is the current condition of the pipeline, such as "running" or "stopped". The pipeline state can display in the All Pipelines list. The state of a pipeline can also appear in the Data Collector log.

The following pipeline states often display in the All Pipelines list:
  • EDITED - The pipeline has been created or modified, and has not run since the last modification.
  • FINISHED - The pipeline has completed all expected processing and has stopped running.
  • RUN_ERROR - The pipeline encountered an error while running and stopped.
  • RUNNING - The pipeline is running.
  • STOPPED - The pipeline was manually stopped.
  • START_ERROR - The pipeline encountered an error while starting and failed to start.
  • STOP_ERROR - The pipeline encountered an error while stopping.
The following pipeline states are transient and rarely display in the All Pipelines list. These states can display in the Data Collector log when the pipeline logging level is set to Debug:
  • CONNECT_ERROR - When running a cluster-mode pipeline, Data Collector cannot connect to the underlying cluster manager, such as Mesos or YARN.When running a cluster pipeline, the execution engine cannot connect to the underlying cluster manager, such as Hadoop YARN or Amazon EMR.
  • CONNECTING - The pipeline is preparing to restart after a Data Collectoran execution engine restart.
  • DISCONNECTED - The pipeline is disconnected from external systems, typically because Data Collectorthe execution engine is restarting or shutting down.
  • FINISHING - The pipeline is in the process of finishing all expected processing.
  • RETRY - The pipeline is trying to run after encountering an error while running. This occurs only when the pipeline is configured for a retry upon error.
  • RUNNING_ERROR - The pipeline encounters errors while running.
  • STARTING - The pipeline is initializing, but hasn't started yet.
  • STARTING_ERROR - The pipeline encounters errors while starting.
  • STOPPING - The pipeline is in the process of stopping after a manual request to stop.
  • STOPPING_ERROR - The pipeline encounters errors while stopping.