Pocoder opened a new issue #21425:
URL: https://github.com/apache/airflow/issues/21425
### Apache Airflow version
2.2.3 (latest released)
### What happened
I've created my own XCom Backend 'S3XComBackend' with no additional logic in
folder include/custom_xcom_backend.py and then tried to configure my
docker-compose file to work with it. I added `AIRFLOW__CORE__XCOM_BACKEND:
'include.custom_xcom_backend.S3XComBackend'` to environments and `-
./include:/opt/airflow/include` to volumes. Then I ran docker-compose up and
faced ERROR:
> airflow_postgres_1 is up-to-date
> airflow_redis_1 is up-to-date
> Starting airflow_airflow-init_1 ... done
>
> ERROR: for airflow-webserver Container "a3c1a81acdcd" exited with code 1.
>
> ERROR: for airflow-worker Container "a3c1a81acdcd" exited with code 1.
>
> ERROR: for airflow-scheduler Container "a3c1a81acdcd" exited with code 1.
>
> ERROR: for airflow-triggerer Container "a3c1a81acdcd" exited with code 1.
>
> ERROR: for flower Container "a3c1a81acdcd" exited with code 1.
> ERROR: Encountered errors while bringing up the project.
### What you expected to happen
_No response_
### How to reproduce
This is my xcom_backend:
``` python
from typing import Any
import pickle
import uuid
from airflow.models.xcom import BaseXCom
from airflow.providers.amazon.aws.hooks.s3 import S3Hook
class S3XComBackend(BaseXCom):
@staticmethod
def serialize_value(value: Any):
return BaseXCom.serialize_value(value)
@staticmethod
def deserialize_value(result) -> Any:
return BaseXCom.deserialize_value(result)
```
### Operating System
mac-os
### Versions of Apache Airflow Providers
```
apache-airflow==2.2.3
apache-airflow-providers-amazon==2.6.0
apache-airflow-providers-ftp==2.0.1
apache-airflow-providers-http==2.0.2
apache-airflow-providers-imap==2.1.0
apache-airflow-providers-sqlite==2.0.1
```
### Deployment
Docker-Compose
### Deployment details
_No response_
### 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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