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From "Mas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AIRFLOW-1641) Task gets stuck in queued state
Date Mon, 25 Sep 2017 09:50:00 GMT
Mas created AIRFLOW-1641:
----------------------------

             Summary: Task gets stuck in queued state
                 Key: AIRFLOW-1641
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1641
             Project: Apache Airflow
          Issue Type: Bug
          Components: scheduler
    Affects Versions: 1.8.0
         Environment: Linux
            Reporter: Mas


Hello,

I have one dag with ~20 tasks. 
The dags runs daily and some tasks can sometime last for hours, depending on the processed
data behind.
There are some interactions with AWS and a remote DB.
I only use LocalExecutor.

What this issue is about, is the fact that sometime (randomly, and without any clear reason)
one of the tasks (here also, it is random) gets stuck in "queued" state and never starts running.

The manual workaround is to restart the task manually by clearing it.

Does anyone have ideas about the issue behind, and how to avoid it for the future? 
Thanks in advance for your help.

PS: other people are facing the same behaviour: [link|https://stackoverflow.com/questions/45853013/airflow-tasks-get-stuck-at-queued-status-and-never-gets-running]




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