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Posted to commits@airflow.apache.org by "Daniel Imberman (Jira)" <ji...@apache.org> on 2020/03/31 00:22:00 UTC

[jira] [Closed] (AIRFLOW-154) Handle xcom parameters when running a single task

     [ https://issues.apache.org/jira/browse/AIRFLOW-154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Imberman closed AIRFLOW-154.
-----------------------------------
    Resolution: Auto Closed

> Handle xcom parameters when running a single task
> -------------------------------------------------
>
>                 Key: AIRFLOW-154
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-154
>             Project: Apache Airflow
>          Issue Type: Wish
>          Components: xcom
>            Reporter: Timo
>            Priority: Minor
>
> What would be the correct way to handle xcom parameters when running a single task in a dag. Simplified example:
> task 1:
>   - Push parameter
> task 2:
>   - Pull parameter from task 1
>   - Push parameter
> task 3:
>   - Pull parameter from task 2
> I would like to only run task 2 manually.
>   1. Is it possible to specify any parameters from the commandline that would substitute the xcom pull from task 1?  [Related issue with PR|https://issues.apache.org/jira/browse/AIRFLOW-152]
>   2. What happens with the parameters pushed in task 2? Are they left behind somewhere?



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