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From "Bolke de Bruin (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AIRFLOW-1166) _change_state_for_tis_without_dagrun can take very long and end up in deadlocks
Date Wed, 07 Jun 2017 07:21:18 GMT

     [ https://issues.apache.org/jira/browse/AIRFLOW-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bolke de Bruin resolved AIRFLOW-1166.
-------------------------------------
    Resolution: Fixed

Issue resolved by pull request #2267
[https://github.com/apache/incubator-airflow/pull/2267]

> _change_state_for_tis_without_dagrun can take very long and end up in deadlocks
> -------------------------------------------------------------------------------
>
>                 Key: AIRFLOW-1166
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1166
>             Project: Apache Airflow
>          Issue Type: Bug
>    Affects Versions: 1.8.1
>            Reporter: Bolke de Bruin
>            Assignee: Bolke de Bruin
>              Labels: scheduler
>             Fix For: 1.8.2
>
>
> While testing multi-scheduler setups we've seen some serious delays (>8s, with just
one dag running) in _change_state_for_tis_without_dagrun. This can also result in deadlocks
in the db due to the fact the query in _change_state_for_tis_without_dagrun is locking a significant
amount of task instances. This is unnecessary.



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