在使用Airflow DAG时，我面临一个奇怪的情况。我使用的是Airflow容器，并创建了DAG，可按照以下三个步骤将Atlassian工件自动备份到S3存储桶：
Create a directory structure if it does not exist Run the Atlassian artifact backup script. Move the backed-up artifacts to S3 and delete the files locally. 我遇到的奇怪行为是，当我手动触发DAG时，一切正常。但是，调度的DAG每天都能正确触发，但是单个任务永远不会执行。第一个任务Create a directory structure if it does not exist显示了依赖的原因Dagrun Running：
Task instance's dagrun was not in the 'running' state but in the state 'success'.
以下任务给出了依赖项Trigger Rule语句的以下原因：
Task's trigger rule 'all_success' requires all upstream tasks to have succeeded, but found 1 non-success(es). upstream_tasks_state={'total': 1, 'successes': 0, 'skipped': 0, 'failed': 0, 'upstream_failed': 0, 'done': 0}, upstream_task_ids={'create_directory'}