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From "Bolke de Bruin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (AIRFLOW-932) Backfills delete existing task instances and mark them as removed
Date Wed, 01 Mar 2017 19:05:45 GMT

    [ https://issues.apache.org/jira/browse/AIRFLOW-932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15890810#comment-15890810
] 

Bolke de Bruin edited comment on AIRFLOW-932 at 3/1/17 7:05 PM:
----------------------------------------------------------------

verify_integrity in models.py is where you would like to look at. As mentioned it sets a state
to REMOVED if a task instance does not have a corresponding task in a DAG. It is there for
auditing and versioning reasons. Does it affect running anything? A changed DAG cannot have
a dependency on a non existent task.

Ie. please explain why this is a blocker.


was (Author: bolke):
verify_integrity in models.py is where you would like to look at. As mentioned it sets a state
to REMOVED if a task instance does not have a corresponding task in a DAG. It is there for
auditing and versioning reasons. Does it affect running anything? A changed DAG cannot have
a dependency on a non existent task.

> Backfills delete existing task instances and mark them as removed
> -----------------------------------------------------------------
>
>                 Key: AIRFLOW-932
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-932
>             Project: Apache Airflow
>          Issue Type: Sub-task
>          Components: backfill
>            Reporter: Dan Davydov
>            Priority: Blocker
>
> I'm still investigating.



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