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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/09/23 13:40:24 UTC

[GitHub] [airflow] ashb commented on pull request #18439: Check and run migration in webserver startup if necessary

ashb commented on pull request #18439:
URL: https://github.com/apache/airflow/pull/18439#issuecomment-925826422


   I feel uneasy about automatically running migrations for non-automated approaches.
   
   What I propse we do is:
   
   - When connected to a TTY: prompt the user if they want to run migrations if there are any outstanding
   - When not connected to a TTY (i.e. a daemon or non-attached container for instance) just error.
   
   That feels much safer than automatically running a potential long migration when the user isn't expecting -- doubly so in the case of MySQL where DDL etc is non transactional so the process can't even be safely interrupted!


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