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Posted to commits@airflow.apache.org by "Jeremiah Lowin (JIRA)" <ji...@apache.org> on 2018/09/08 14:37:00 UTC

[jira] [Closed] (AIRFLOW-888) Operators should not push XComs by default

     [ https://issues.apache.org/jira/browse/AIRFLOW-888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeremiah Lowin closed AIRFLOW-888.
----------------------------------
    Resolution: Unresolved

> Operators should not push XComs by default
> ------------------------------------------
>
>                 Key: AIRFLOW-888
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-888
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: operators, xcom
>            Reporter: Jeremiah Lowin
>            Assignee: Jeremiah Lowin
>            Priority: Major
>             Fix For: 1.10.0
>
>
> Currently, Airflow pushes an XCom every time an Operator returns a result. This behavior is overeager and potentially taxing on the database (since there are no restrictions on what an Operator can return).
> Some users may rely on this behavior, so it can still be enabled in airflow.cfg.



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