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https://issues.apache.org/jira/browse/AIRFLOW-154?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo updated AIRFLOW-154:
-------------------------
Description:
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?
was:
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?
2. What happens with the parameters pushed in task 2? Are they left behind
somewhere?
> 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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