[jira] [Commented] (AIRFLOW-4922) If a task crashes, host name is not committed to the database so logs aren't able to be seen in the UI

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-4922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17324086#comment-17324086 ] 

ASF GitHub Bot commented on AIRFLOW-4922:
-----------------------------------------

pelaprat commented on pull request #6722:
URL: https://github.com/apache/airflow/pull/6722#issuecomment-821573997


   Why is this PR closed? This bug still exists in Airflow 2.x.


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> If a task crashes, host name is not committed to the database so logs aren't able to be seen in the UI
> ------------------------------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-4922
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4922
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: logging
>    Affects Versions: 1.10.3
>            Reporter: Andrew Harmon
>            Assignee: wanghong-T
>            Priority: Major
>
> Sometimes when a task fails, the log show the following
> {code}
> *** Log file does not exist: /usr/local/airflow/logs/my_dag/my_task/2019-07-07T09:00:00+00:00/1.log*** 
> Fetching from: http://:8793/log/my_dag/my_task/2019-07-07T09:00:00+00:00/1.log*** 
> Failed to fetch log file from worker. Invalid URL 'http://:8793/log/my_dag/my_task/2019-07-07T09:00:00+00:00/1.log': No host supplied
> {code}
> I believe this is due to the fact that the row is not committed to the database until after the task finishes. https://github.com/apache/airflow/blob/a1f9d9a03faecbb4ab52def2735e374b2e88b2b9/airflow/models/taskinstance.py#L857



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