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

["Daniel Imberman (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17071354#comment-17071354 ] 

Daniel Imberman commented on AIRFLOW-154:
-----------------------------------------

This issue has been closed.
 
                            If you still feel this ticket is relevant, please submit a github issue
                             here https://github.com/apache/airflow/issues/new/choose

> 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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