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https://issues.apache.org/jira/browse/AIRFLOW-168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15301507#comment-15301507
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Bolke de Bruin edited comment on AIRFLOW-168 at 5/26/16 4:44 AM:
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Yes sorry I mentioned this on gitter. With master deadlock detection is broken
due to the eager creation and the scheduler will not check for existing
task_instances before creation, hence the constraint error. It will need the
follow up patch from AIRFLOW-128.
Black is indeed the color (basically undefined) for tasksinstances that are
created but have not been picked up by the scheduler.
was (Author: bolke):
Yes sorry I mentioned this on gitter. With master deadlock detection is broken
due to the eager creation. It will need the follow up patch from AIRFLOW-128.
Black is indeed the color (basically undefined)
> schedule_interval @once scheduling dag atleast twice
> ----------------------------------------------------
>
> Key: AIRFLOW-168
> URL: https://issues.apache.org/jira/browse/AIRFLOW-168
> Project: Apache Airflow
> Issue Type: Bug
> Components: scheduler
> Affects Versions: Airflow 1.7.1.2
> Reporter: Sumit Maheshwari
> Attachments: Screen Shot 2016-05-24 at 9.51.50 PM.png,
> screenshot-1.png
>
>
> I was looking at example_xcom example and found that it got scheduled twice.
> Ones at the start_time and ones at the current time. To be correct I tried
> multiple times (by reloading db) and its same.
> I am on airflow master, using sequential executor with sqlite3. Though it
> works as expected on a prod env which is running v1.7 with celery workers and
> mysql backend.
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