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From "Chris Riccomini (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AIRFLOW-29) Decrease the default `dagbag_import_timeout`
Date Mon, 02 May 2016 15:41:13 GMT

    [ https://issues.apache.org/jira/browse/AIRFLOW-29?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15266831#comment-15266831
] 

Chris Riccomini commented on AIRFLOW-29:
----------------------------------------

One thing to consider: what happens if the scheduler machine is overloaded, and imports are
taking a long time because of that? (similar to a GC pause in Java).

> Decrease the default `dagbag_import_timeout`
> --------------------------------------------
>
>                 Key: AIRFLOW-29
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-29
>             Project: Apache Airflow
>          Issue Type: Improvement
>            Reporter: Bence Nagy
>            Priority: Minor
>
> The default setting as of 1.7.0 is:
> {code}
> dagbag_import_timeout = 30
> {code}
> I don't think there's any reason for DAG imports to take over 1 second. I didn't always
know this though, and had a DAG earlier that made DB queries on each run making the scheduler
a lot slower than it should've been. I feel like having a really low default setting would
be a nice way to make sure users don't do silly things like I did, if coupled with helpful
error reporting.
> Original issue: https://github.com/airbnb/airflow/issues/1380



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