Source code for airflow.models.taskfail

#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
"""Taskfail tracks the failed run durations of each task instance"""

from sqlalchemy import Column, ForeignKeyConstraint, Index, Integer
from sqlalchemy.orm import relationship

from airflow.models.base import Base, StringID
from airflow.utils.sqlalchemy import UtcDateTime


[docs]class TaskFail(Base): """TaskFail tracks the failed run durations of each task instance."""
[docs] __tablename__ = "task_fail"
[docs] id = Column(Integer, primary_key=True)
[docs] task_id = Column(StringID(), nullable=False)
[docs] dag_id = Column(StringID(), nullable=False)
[docs] run_id = Column(StringID(), nullable=False)
[docs] map_index = Column(Integer, nullable=False)
[docs] start_date = Column(UtcDateTime)
[docs] end_date = Column(UtcDateTime)
[docs] duration = Column(Integer)
[docs] __table_args__ = ( Index("idx_task_fail_task_instance", dag_id, task_id, run_id, map_index), ForeignKeyConstraint( [dag_id, task_id, run_id, map_index], [ "task_instance.dag_id", "task_instance.task_id", "task_instance.run_id", "task_instance.map_index", ], name='task_fail_ti_fkey', ondelete="CASCADE",
), ) # We don't need a DB level FK here, as we already have that to TI (which has one to DR) but by defining # the relationship we can more easily find the execution date for these rows
[docs] dag_run = relationship( "DagRun", primaryjoin="""and_( TaskFail.dag_id == foreign(DagRun.dag_id), TaskFail.run_id == foreign(DagRun.run_id), )""", viewonly=True,
) def __init__(self, ti): self.dag_id = ti.dag_id self.task_id = ti.task_id self.run_id = ti.run_id self.map_index = ti.map_index self.start_date = ti.start_date self.end_date = ti.end_date if self.end_date and self.start_date: self.duration = int((self.end_date - self.start_date).total_seconds()) else: self.duration = None
[docs] def __repr__(self): prefix = f"<{self.__class__.__name__}: {self.dag_id}.{self.task_id} {self.run_id}" if self.map_index != -1: prefix += f" map_index={self.map_index}" return prefix + '>'

Was this entry helpful?