IO throttling: implementation

• Synchronize clients IO consumption via a PostgreSQL table
• Implement a leaky bucket python class

Outcome: Code in a repository tree

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Migrated from T3530 (view on Phabricator)

assigned to @dachary

added RedHat collaboration priority:Normal labels

changed the description

marked this issue as related to #3532

added state:wip label

https://www.django-rest-framework.org/api-guide/throttling/ is already used by swh-web/swh/web/api/throttling.py but is targeting REST API throttling, not a good fit.

https://github.com/vutran1710/PyrateLimiter looks really good but is not for IO throttling

https://github.com/mjpieters/aiolimiter is a better fit and may be used for copy/pasting

mentioned in commit swh/devel/swh-objstorage@5904f7c1

removed state:wip label

closed