I just discovered 'resolve_xcom_backend' and looked at the source code and it 
appears to explicitly load the XCom class from the configuration.
https://airflow.apache.org/docs/apache-airflow/stable/_api/airflow/models/xcom/index.html#airflow.models.xcom.resolve_xcom_backend
Should this be called in the DAG? 
Is it necessary to call this function?
If someone can give me points then i will provide a pull request to augment the 
documentation as there doesn't appear to be any.
Thanks
lewismc

On 2022/01/05 22:41:22 lewis john mcgibbney wrote:
> Hi users@,
> 
> We wish to use a custom XCom something similar to what is presented in the
> following Astronomer guide on the topic.
> https://www.astronomer.io/guides/custom-xcom-backends
> 
> My question is, when running Airflow on K8s, what is the best mechanism to
> verify that a custom XCom implementation, defined in values.yaml, is
> actually being loaded?
> Is there some DEBUG/TRACE logging statement I can look out for or something
> similar?
> 
> Thank you
> lewismc
> 
> -- 
> http://home.apache.org/~lewismc/
> http://people.apache.org/keys/committer/lewismc
> 

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