[jira] [Updated] (AIRFLOW-2529) Graph View DAG Run dropdown

["Stefan Seelmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-2529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Seelmann updated AIRFLOW-2529:
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    Attachment: Screenshot_2018-05-28_21-32-38.png

> Graph View DAG Run dropdown
> ---------------------------
>
>                 Key: AIRFLOW-2529
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2529
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: webapp
>    Affects Versions: 1.9.0
>            Reporter: Stefan Seelmann
>            Priority: Major
>         Attachments: Screenshot_2018-05-28_21-32-38.png
>
>
> The "Graph View" has a dropdown which contains all DAG run IDs. If there are many (thousands) of DAG runs the page gets barely usable. It takes multiple seconds to load the page because all DAG runs must be fetched from DB, are processed, and a long option list is rendered in the browser. It is also not very useful because in such a long list it is hard to find a particular DAG run.
> A simple fix to address the load time would be to just limit the number of shown DAG runs. For example only the latest N are shown, N could be "page_size" from airflow.cfg which is also used in other views. If the DAG run that should be shown (via query parameters execution_date or run_id) is not included in the N lastest list it can still be added by a 2nd SQL query.
> A more complex change to improve usability would require a different way to select a DAG run. For example a popup to search for DAG runs with pagination etc. But such functionality already exits in the /dagrun UI.



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