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From "Bolke de Bruin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (AIRFLOW-168) schedule_interval @once scheduling dag atleast twice
Date Thu, 26 May 2016 04:45:12 GMT

    [ 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:
-----------------------------------------------------------------

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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