48 строки
1.7 KiB
Python
48 строки
1.7 KiB
Python
#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from sqlalchemy import Boolean, Column, Index, String, Text
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from airflow.models.base import COLLATION_ARGS, ID_LEN, Base
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from airflow.utils.sqlalchemy import UtcDateTime
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class SlaMiss(Base):
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"""
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Model that stores a history of the SLA that have been missed.
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It is used to keep track of SLA failures over time and to avoid double
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triggering alert emails.
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"""
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__tablename__ = "sla_miss"
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task_id = Column(String(ID_LEN, **COLLATION_ARGS), primary_key=True)
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dag_id = Column(String(ID_LEN, **COLLATION_ARGS), primary_key=True)
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execution_date = Column(UtcDateTime, primary_key=True)
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email_sent = Column(Boolean, default=False)
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timestamp = Column(UtcDateTime)
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description = Column(Text)
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notification_sent = Column(Boolean, default=False)
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__table_args__ = (
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Index('sm_dag', dag_id, unique=False),
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)
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def __repr__(self):
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return str((
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self.dag_id, self.task_id, self.execution_date.isoformat()))
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