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From "James Meickle (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AIRFLOW-2178) Scheduler can't get past SLA check if SMTP settings are incorrect
Date Mon, 05 Mar 2018 19:18:00 GMT
James Meickle created AIRFLOW-2178:
--------------------------------------

             Summary: Scheduler can't get past SLA check if SMTP settings are incorrect
                 Key: AIRFLOW-2178
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2178
             Project: Apache Airflow
          Issue Type: Bug
          Components: scheduler
    Affects Versions: 1.9.0
         Environment: 16.04
            Reporter: James Meickle


After testing Airflow for a while in staging, I provisioned our prod cluster and enabled the
first DAG on it. The "backfill" for this DAG performed just fine, so I assumed everything
was working and left it over the weekend.

However, when the last "backfill" period completed and the scheduler transitioned to the most
recent execution date, it began failing in the `manage_slas` method. Due to a configuration
difference, SMTP was timing out in production, preventing the SLA check from ever completing;
this both blocked SLA notifications, as well as prevented further tasks in this DAG from ever
getting scheduled.

As an operator, I would expect AIrflow to treat scheduling tasks as a higher-priority concern,
and to do so even f the SLA feature fails to work. I would also expect Airflow to notify me
in the web UI that email sending is not currently working.

 

 



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