potiuk opened a new pull request, #24967: URL: https://github.com/apache/airflow/pull/24967
Enabling TCP_KEEPALIVE allows to keep the idle connections opened when there are firewalls in-betweeen that close such connections. TCP_KEEPALIVE sends a "no-data" packet regularly (and expects ACK from the server). This should not be mistaken with Python requests "keep alive" feature - which reuses opened HTTP connections if you perform several requests to the same server (both are named keep alive but they both mean two completely different things and are implemented at differen layers of the OSI network stack. The Requests Keep Alive is Layer 7 (application) and TCP Keep Alive is at Layer 4 (transport). The "Requests" keep alive is enabled by default in the requests library while the TCP Keep Alive requires a TCPKeepAliveAdapter to be used (from requests_toolbelt library). Fixes: #21365 <!-- Thank you for contributing! Please make sure that your code changes are covered with tests. And in case of new features or big changes remember to adjust the documentation. Feel free to ping committers for the review! In case of an existing issue, reference it using one of the following: closes: #ISSUE related: #ISSUE How to write a good git commit message: http://chris.beams.io/posts/git-commit/ --> --- **^ Add meaningful description above** Read the **[Pull Request Guidelines](https://github.com/apache/airflow/blob/main/CONTRIBUTING.rst#pull-request-guidelines)** for more information. In case of fundamental code changes, an Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals)) is needed. In case of a new dependency, check compliance with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). In case of backwards incompatible changes please leave a note in a newsfragment file, named `{pr_number}.significant.rst` or `{issue_number}.significant.rst`, in [newsfragments](https://github.com/apache/airflow/tree/main/newsfragments). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
