tothandor opened a new issue #17879:
URL: https://github.com/apache/airflow/issues/17879
### Apache Airflow version
2.1.3 (latest released)
### Operating System
CentOS Stream release 8
### Versions of Apache Airflow Providers
None of them are relevant
### Deployment
Virtualenv installation
### Deployment details
mkdir /srv/airflow
cd /srv/airflow
virtualenv venv
source venv/bin/activate
pip install apache-airflow==2.1.3
AIRFLOW_HOME and AIRFLOW_CONFIG is specified via environment variables in
/etc/sysconfig/airflow, which is in turn used as EnvironmentFile in systemd
service files.
systemctl start airflow-{scheduler,webserver,kerberos}
Python version: 3.9.2
LocalExecutors are used
### What happened
On the Web UI, I had cleared failed tasks, which have been cleared properly,
but the DagRun became black with a literal value of "DagRunState.QUEUED",
therefore it can't be scheduled again.
### What you expected to happen
DagRun state should be 'queued'.
### How to reproduce
Just clear any tasks on the Web UI. I wonder how could it be that nobody
noticed this issue.
### Anything else
Here's a patch to fix it. Maybe the __str__ method should be different, or
the database/persistence layer should handle this, but for now, this solves the
problem.
```patch
--- airflow/models/dag.py.orig 2021-08-28 09:48:05.465542450 +0200
+++ airflow/models/dag.py 2021-08-28 09:47:34.272639960 +0200
@@ -1153,7 +1153,7 @@
confirm_prompt=False,
include_subdags=True,
include_parentdag=True,
- dag_run_state: DagRunState = DagRunState.QUEUED,
+ dag_run_state: DagRunState = DagRunState.QUEUED.value,
dry_run=False,
session=None,
get_tis=False,
@@ -1369,7 +1369,7 @@
confirm_prompt=False,
include_subdags=True,
include_parentdag=False,
- dag_run_state=DagRunState.QUEUED,
+ dag_run_state=DagRunState.QUEUED.value,
dry_run=False,
):
```
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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