abezruchenkov opened a new issue #18082:
URL: https://github.com/apache/airflow/issues/18082
### Apache Airflow version
2.1.3 (latest released)
### Operating System
ubuntu, macos
### Versions of Apache Airflow Providers
apache-airflow-providers-amazon==1.4.0
apache-airflow-providers-ftp==1.1.0
apache-airflow-providers-http==1.1.1
apache-airflow-providers-imap==1.0.1
apache-airflow-providers-postgres==1.0.2
apache-airflow-providers-slack==4.0.0
apache-airflow-providers-sqlite==1.0.2
### Deployment
Virtualenv installation
### Deployment details
_No response_
### What happened
We are using TriggerDagRunOperator in the end of DAG to retrigger current
DAG:
`TriggerDagRunOperator(task_id=‘trigger_task’, trigger_dag_id=‘current_dag’)`
Everything works fine, except we have missing duration in UI and warnings
in scheduler :
`[2021-09-07 15:33:12,890] {dagrun.py:604} WARNING - Failed to record
duration of <DagRun current_dag @ 2021-09-07 12:32:17.035471+00:00:
manual__2021-09-07T12:32:16.956461+00:00, externally triggered: True>:
start_date is not set.`
And in web UI we can't see duration in TreeView and DAG has no started and
duration values.
### What you expected to happen
Correct behaviour with start date and duration metrics in web UI.
### How to reproduce
```
import pendulum
import pytz
from airflow import DAG
from airflow.operators.dummy import DummyOperator
from airflow.operators.trigger_dagrun import TriggerDagRunOperator
with DAG(
start_date=pendulum.datetime(year=2021, month=7,
day=1).astimezone(pytz.utc),
schedule_interval='@daily',
default_args={},
max_active_runs=1,
dag_id='current_dag'
) as dag:
step1 = DummyOperator(task_id='dummy_task')
trigger_self = TriggerDagRunOperator(task_id='trigger_self',
trigger_dag_id='current_dag')
step1 >> trigger_self
```
`[2021-09-08 12:53:35,094] {dagrun.py:604} WARNING - Failed to record
duration of <DagRun current_dag @ 2021-01-04 03:00:11+00:00:
backfill__2021-01-04T03:00:11+00:00, externally triggered: False>: start_date
is not set.`
### Anything else
_No response_
### 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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