airflow.exceptions

Exceptions used by Airflow

Module Contents

exception airflow.exceptions.AirflowException[source]

Bases: Exception

Base class for all Airflow’s errors. Each custom exception should be derived from this class

status_code = 500[source]
exception airflow.exceptions.AirflowBadRequest[source]

Bases: airflow.exceptions.AirflowException

Raise when the application or server cannot handle the request

status_code = 400[source]
exception airflow.exceptions.AirflowNotFoundException[source]

Bases: airflow.exceptions.AirflowException

Raise when the requested object/resource is not available in the system

status_code = 404[source]
exception airflow.exceptions.AirflowConfigException[source]

Bases: airflow.exceptions.AirflowException

Raise when there is configuration problem

exception airflow.exceptions.AirflowSensorTimeout[source]

Bases: airflow.exceptions.AirflowException

Raise when there is a timeout on sensor polling

exception airflow.exceptions.AirflowRescheduleException(reschedule_date)[source]

Bases: airflow.exceptions.AirflowException

Raise when the task should be re-scheduled at a later time.

Parameters

reschedule_date (datetime.datetime) – The date when the task should be rescheduled

exception airflow.exceptions.AirflowTaskTimeout[source]

Bases: airflow.exceptions.AirflowException

Raise when the task execution times-out

exception airflow.exceptions.AirflowWebServerTimeout[source]

Bases: airflow.exceptions.AirflowException

Raise when the web server times out

exception airflow.exceptions.AirflowSkipException[source]

Bases: airflow.exceptions.AirflowException

Raise when the task should be skipped

exception airflow.exceptions.AirflowFailException[source]

Bases: airflow.exceptions.AirflowException

Raise when the task should be failed without retrying

exception airflow.exceptions.AirflowDagCycleException[source]

Bases: airflow.exceptions.AirflowException

Raise when there is a cycle in Dag definition

exception airflow.exceptions.DagNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a DAG is not available in the system

exception airflow.exceptions.DagCodeNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a DAG code is not available in the system

exception airflow.exceptions.DagRunNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a DAG Run is not available in the system

exception airflow.exceptions.DagRunAlreadyExists[source]

Bases: airflow.exceptions.AirflowBadRequest

Raise when creating a DAG run for DAG which already has DAG run entry

exception airflow.exceptions.DagFileExists[source]

Bases: airflow.exceptions.AirflowBadRequest

Raise when a DAG ID is still in DagBag i.e., DAG file is in DAG folder

exception airflow.exceptions.TaskNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a Task is not available in the system

exception airflow.exceptions.TaskInstanceNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a Task Instance is not available in the system

exception airflow.exceptions.PoolNotFound[source]

Bases: airflow.exceptions.AirflowNotFoundException

Raise when a Pool is not available in the system

exception airflow.exceptions.NoAvailablePoolSlot[source]

Bases: airflow.exceptions.AirflowException

Raise when there is not enough slots in pool

exception airflow.exceptions.DagConcurrencyLimitReached[source]

Bases: airflow.exceptions.AirflowException

Raise when DAG concurrency limit is reached

exception airflow.exceptions.TaskConcurrencyLimitReached[source]

Bases: airflow.exceptions.AirflowException

Raise when task concurrency limit is reached

airflow.exceptions.file_syntax_error[source]

Information about a single error in a file.

exception airflow.exceptions.AirflowFileParseException(msg, file_path, parse_errors)[source]

Bases: airflow.exceptions.AirflowException

Raises when connection or variable file can not be parsed

Parameters
  • msg – The human-readable description of the exception

  • file_path – A processed file that contains errors

  • parse_errors – File syntax errors

__str__(self)[source]