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Posted to commits@airflow.apache.org by "Xiaodong DENG (JIRA)" <ji...@apache.org> on 2019/04/10 15:08:00 UTC

[jira] [Created] (AIRFLOW-4269) For-lop in jobs._process_task_instances can be faster by breaking from unnecessary steps

Xiaodong DENG created AIRFLOW-4269:
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             Summary: For-lop in jobs._process_task_instances can be faster by breaking from unnecessary steps
                 Key: AIRFLOW-4269
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4269
             Project: Apache Airflow
          Issue Type: Improvement
            Reporter: Xiaodong DENG
            Assignee: Xiaodong DENG


[https://github.com/apache/airflow/blob/64331aa5b90c44a3a22631d0ed168c44842a1fc8/airflow/jobs.py#L923] is a "continue" while it should be a break.

When *len(active_dag_runs) >= dag.max_active_runs* , the following part of the for-loop will give the same result and result in a "continue" again and again, doing nothing. 

We should use a "break" here.



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