uranusjr opened a new pull request, #27827: URL: https://github.com/apache/airflow/pull/27827
The main thing is to make TriggerRuleDep to only count upstream task instances with "relevant" map indexes, instead all of them. If a downstream task instance is considered to only need cetain tis of an upstream task (instead of all of them), the dependency analyzer will mark the downstream as ready to execute when those selected tis are finished, instead of needing to wait for all tis of that upstream task, effectively enabling depth-first execution. Most of the "relevant map indexes" logic is already in place when we implemented XComArg resolution, so we just need to reuse that. Tests will come later. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
