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Posted to commits@airflow.apache.org by "Kaxil Naik (JIRA)" <ji...@apache.org> on 2019/08/06 19:23:00 UTC
[jira] [Updated] (AIRFLOW-4443) Update LatestOnlyOperator docstring
to clarify behavior during externally triggered dagrun
[ https://issues.apache.org/jira/browse/AIRFLOW-4443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kaxil Naik updated AIRFLOW-4443:
--------------------------------
Component/s: documentation
> Update LatestOnlyOperator docstring to clarify behavior during externally triggered dagrun
> ------------------------------------------------------------------------------------------
>
> Key: AIRFLOW-4443
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4443
> Project: Apache Airflow
> Issue Type: Improvement
> Components: documentation
> Reporter: Kyle Hausmann
> Priority: Minor
> Fix For: 1.10.5
>
>
> A LatestOnlyOperator task will never skip downstream tasks if run in an externally triggered dagrun. This is probably reasonable–the software is not making assumptions about the trigger-er's intention when creating an unscheduled dagrun, and in that agnostic state, the default behavior would be to not skip any tasks.
> However, that rationale may not be obvious to an enduser, who may be confused why a latest-only task in an externally triggered dagrun with an execution_date in the past is not skipping downstream tasks.
> The docstring for the LatestOnlyOperator should clarify the operator's behavior in this scenario.
> I will be submitting a very small PR with updated docstring shortly.
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