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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/09/30 12:29:34 UTC

[GitHub] [airflow] AlexBogs commented on issue #17010: Add support for custom Trigger Rule logic

AlexBogs commented on issue #17010:
URL: https://github.com/apache/airflow/issues/17010#issuecomment-931276931


   It'd be nice to be able to have custom trigger rule.
   I personally need 'all done and none upstream_failed'  rule after an 'optional' task. If 'optional' task fails by itself then downstream tasks should proceed, but if it has upstream_failed then downstream tasks should have upstream_failed status too.
   
   It's possible to make desired behavior by adding 2 dummy tasks: 1 downstream from the 'optional' task with the 'all_done' rule, and another one afterwards with 'all_success' rule and the 'optional' task parents included too, but it will make already bloated DAG even bigger.


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