waleedsamy opened a new issue #16285:
URL: https://github.com/apache/airflow/issues/16285
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**Apache Airflow version**: >= 2.3
**Kubernetes version (if you are using kubernetes)** (use `kubectl version`):
**Environment**:
- **Cloud provider or hardware configuration**:
- **OS** (e.g. from /etc/os-release): Ubuntu 18.04.5 LTS
- **Kernel** (e.g. `uname -a`): Linux 4.15.0-143-generic #147-Ubuntu SMP Wed
Apr 14 16:10:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
- **Install tools**: pip
- **Others**:
**What happened**:
When a task get externally killed, it is marked as Failed even though it can
be retried.
<!-- (please include exact error messages if you can) -->
**What you expected to happen**:
When a task get externally killed (kill -9 pid), it should put back to retry
if it `retries` did not run out yet.
<!-- What do you think went wrong? -->
**How to reproduce it**:
I'm using Celery as executor and I have a cluster of ~250 machine.
I have a task that defined as next. When the task started to execute, and it
get killed externally by sending SIGKILL to it (or to the executor process and
it's children), it get marked as FAILED and doesn't put to retry (even though
retries is set to 10 times)
```
import time
def _task1(ts_nodash, dag_run, ti, **context):
time.sleep(300)
tasks = PythonOperator(
task_id='task1',
python_callable=_task1,
retries=10,
dag=dag1
)
```
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**Anything else we need to know**: This bug is introduced by
[15537](https://github.com/apache/airflow/pull/15537/files#diff-d80fa918cc75c4d6aa582d5e29eeb812ba21371d6977fde45a4749668b79a515R159)
as far as I know.
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