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Posted to commits@airflow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/05/25 08:52:00 UTC
[jira] [Commented] (AIRFLOW-3702) Reverse Backfilling(from current
date to start date)
[ https://issues.apache.org/jira/browse/AIRFLOW-3702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17115852#comment-17115852 ]
ASF GitHub Bot commented on AIRFLOW-3702:
-----------------------------------------
damnko commented on pull request #4676:
URL: https://github.com/apache/airflow/pull/4676#issuecomment-633459678
Hi, can the `run_backwards` parameter be used when defining a DAG like so?
```python
from airflow import DAG
dag = DAG(
dag_id = "..."
scheduled_interval = "@daily"
run_backwards = True
)
```
It seems to be something that can be used only manually through the Airflow cli but wanted to confirm. Is there any way to setup a DAG to run as backfilling job from the most recent DAG to the oldest?
Thanks
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> Reverse Backfilling(from current date to start date)
> ----------------------------------------------------
>
> Key: AIRFLOW-3702
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3702
> Project: Apache Airflow
> Issue Type: Improvement
> Components: configuration, DAG, models
> Affects Versions: 1.10.1
> Environment: MacOS High Sierra
> python2.7
> Airflow-1.10.1
> Reporter: Shubham Gupta
> Assignee: Dima Kamalov
> Priority: Major
> Labels: critical, improvement, priority
> Fix For: 1.10.3
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Hello,
> I think there is a need to have reverse backfilling option as well because recent jobs would take precedence over the historical jobs. We can come up with some variable in the DAG such as dagrun_order_default = True/False . This would help in many use cases, in which previous date pipeline does not depends on current pipeline.
> I saw this page which talks about this -> http://mail-archives.apache.org/mod_mbox/airflow-dev/201804.mbox/%3CCAPUwX3M7_qrn=1BqYSMkDV_ifjbTA6LBtq7CzHhEXSZmDJkDnw@mail.gmail.com%3E
> Thanks!
> Regards,
> Shubham
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