问题
Today all day i have been getting this error in the scheduler of Airflow.
sqlalchemy.exc.IntegrityError: (_mysql_exceptions.IntegrityError) (1062, "Duplicate entry '%' fir key 'PRIMARY')")
Because of this the Airflow Scheduler would stop and every time i ran this had the same problem
回答1:
This is due to MySQL's ON UPDATE CURRENT_TIMESTAMP and this is posted in JIRA of Airflow :
https://issues.apache.org/jira/projects/AIRFLOW/issues/AIRFLOW-3045?filter=allopenissues
I fixed this by altering the table to
alter table `task_instance` change `execution_date` `execution_date` TIMESTAMP(6) not null DEFAULT CURRENT_TIMESTAMP(6);
来源：https://stackoverflow.com/questions/52859113/in-apache-airflow-tool-dag-wont-run-due-to-duplicate-entry-problem-in-task-inst