tlw-ray opened a new issue #12234:
URL: https://github.com/apache/airflow/issues/12234
**Apache Airflow version**: 1.10.12
**Kubernetes version (if you are using kubernetes)** (use `kubectl
version`): none
**Environment**:
- **Cloud provider or hardware configuration**:
- **OS** (e.g. from /etc/os-release):
- NAME="CentOS Linux"
- VERSION="7 (Core)"
- ID="centos"
- ID_LIKE="rhel fedora"
- VERSION_ID="7"
- PRETTY_NAME="CentOS Linux 7 (Core)"
- **Kernel** (e.g. `uname -a`):Linux dev-dbmid-161
3.10.0-957.10.1.el7.x86_64 #1 SMP Mon Mar 18 15:06:45 UTC 2019 x86_64 x86_64
x86_64 GNU/Linux
- **Install tools**: https://github.com/puckel/docker-airflow
- **Others**: Run by docker-compose, use CeleryExecutor, redis, postgres.
**What happened**:
Airflow runs for about a week and is scheduled once a day (DAG status is
success, Task status is success). However, occasionally the DAG status is
success, but the Tasks are no_status. That is to say, the DAG returns a
successful status as soon as it is executed, but none of the tasks in it are
running.
<img width="755" alt="Airflow_20201110160955"
src="https://raw.githubusercontent.com/tlw-ray/docker-airflow-mssql/master/image/Airflow_20201110160955.png";>
<!-- (please include exact error messages if you can) -->
**What you expected to happen**:
Tasks in the two `DAGs` are in `no_status` and have not been executed. It is
expected that these tasks should be executed and be in the state of `success`
like other `DAG` execution results.
<!-- What do you think went wrong? -->
**How to reproduce it**:
If the DAG is triggered, it can always be executed correctly, but
occasionally this happens unexpectedly during scheduling.
**Anything else we need to know**:
my dag:
~~~python
dt = datetime.now() - timedelta(days=1)
default_args = {
'start_date': datetime(dt.year, dt.month, dt.day, 19),
}
dag = DAG(
dag_id='DATA_FLOW',
default_args=default_args,
schedule_interval=timedelta(days=1),
)
~~~
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![https://raw.githubusercontent.com/tlw-ray/docker-airflow-mssql/master/image/Airflow_20201110160955.png"](https://raw.githubusercontent.com/tlw-ray/docker-airflow-mssql/master/image/Airflow_20201110160955.png"){kind=link}