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https://issues.apache.org/jira/browse/AIRFLOW-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16547040#comment-16547040
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Ash Berlin-Taylor commented on AIRFLOW-2762:
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Webserver should probably look at the DagModel/"ORM" dag only. Though we should
give some though to the "getting started"/demo flow where you run the webserver
first (and haven't yet run a scheduler) and the dags table will be empty.
> Parallelize DAG parsing in webserver
> ------------------------------------
>
> Key: AIRFLOW-2762
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2762
> Project: Apache Airflow
> Issue Type: Improvement
> Reporter: Kevin Yang
> Priority: Major
>
> Currently the webserver parses DagBag in a single thread fashion and causes
> the start up time to be slow when we have large # of DAG files. Webservers
> should not need the actual DAG object and this should be parallelized.
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