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From "Jeremiah Lowin (JIRA)" <>
Subject [jira] [Created] (AIRFLOW-61) Corner case with deadlocked multiprocessing queues
Date Fri, 06 May 2016 14:53:12 GMT
Jeremiah Lowin created AIRFLOW-61:

             Summary: Corner case with deadlocked multiprocessing queues
                 Key: AIRFLOW-61
             Project: Apache Airflow
          Issue Type: Bug
          Components: scheduler
    Affects Versions: Airflow 1.7.0
            Reporter: Jeremiah Lowin
             Fix For: Airflow 1.7.1

I've never experienced this before, but it came up while testing this morning. Joining a process
that puts items in a queue can apparently lead to deadlocks. This happens in the multiprocessing-enabled

See for example:
("Joining processes that use queues") and related issues:

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