[jira] [Commented] (AIRFLOW-1774) Better handling of templated parameters in Google ML batch prediction/training operators

["Guillermo Rodríguez Cano (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-1774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234602#comment-16234602 ] 

Guillermo Rodríguez Cano commented on AIRFLOW-1774:
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And the corresponding PR: https://github.com/apache/incubator-airflow/pull/2746

> Better handling of templated parameters in Google ML batch prediction/training operators
> ----------------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-1774
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1774
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: contrib, operators
>    Affects Versions: Airflow 2.0, 1.9.0
>            Reporter: Guillermo Rodríguez Cano
>            Priority: Normal
>
> The {{MLEngineBatchPredictionOperator}} does not support well the templated parameter {{job_id}} due to a helper function used to detect and cleanup bad job names inhibiting the templating engine to work. I suspect the same may happen with {{MLEngineTrainingOperator}} as well.
> Google ML requieres a unique job id, therefore it is critical to have the possibility to customise the job's name easily, and preferably with some data related to the DAG, for example, appending the day to the job's name via a macro like {{ds}}



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