milton0825 edited a comment on pull request #8889: URL: https://github.com/apache/airflow/pull/8889#issuecomment-631619067
> What's the use-case of writing Variables to an external backend? Say we are in a migration process to move DAGs from an old airflow cluster to new airflow cluster. And many DAGs shared the same airflow variable, some of them reads variable and some of them writes the variable. We need a way to double write the variable to both cluster during the migration, hence the PR to support that. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
