dimberman commented on issue #5788: [POC] multi-threading using asyncio URL: https://github.com/apache/airflow/pull/5788#issuecomment-569744458 Is this necessary? Asyncio doesn’t do multi-threading. It uses a single thread but switches off what coroutine uses that thread based on readiness. This is actually a pretty important distinction when it comes to parallel processing in python. @ash recently made some changes to the LocalExecutor to use os.fork instead of processes, this makes the multithreading in the LocalExecutor much faster and lighter weight. I don’t think that there’s really that much blocking in our operators outside of specific ones that are making SQL calls etc. I don’t think this would be more performant than the current LocalExecutor but would be glad to discuss potential benefits I’m not seeing/if you’ve done speed comparisons. via Newton Mail [https://cloudmagic.com/k/d/mailapp?ct=dx&cv=10.0.32&pv=10.14.5&source=email_footer_2] On Sun, Dec 29, 2019 at 5:56 PM, Darren Weber <[email protected]> wrote: Tagging this as related to * https://cwiki.apache.org/confluence/display/AIRFLOW/AIP-28%3A+Add+AsyncExecutor+option [https://cwiki.apache.org/confluence/display/AIRFLOW/AIP-28%3A+Add+AsyncExecutor+option] * https://issues.apache.org/jira/browse/AIRFLOW-6395 [https://issues.apache.org/jira/browse/AIRFLOW-6395] — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub [https://github.com/apache/airflow/pull/5788?email_source=notifications&email_token=AAUFRAX635KVKD3QBFCES5DQ3FIONA5CNFSM4ILDNB72YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEHZNMGY#issuecomment-569562651] , or unsubscribe [https://github.com/notifications/unsubscribe-auth/AAUFRAVWOHYCRQB6N456YUTQ3FIONANCNFSM4ILDNB7Q] .
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