Add example on how to load balance /sync requests (#14297)

Signed-off-by: lukas <lukas.walter@aceart.de>

Signed-off-by: lukas <lukas.walter@aceart.de>
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aceArt-GmbH 2022-11-07 14:51:53 +01:00 committed by GitHub
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changelog.d/14297.doc Normal file
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Add example on how to load balance /sync requests. Contributed by [aceArt](https://aceart.de).

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@ -305,9 +305,11 @@ may wish to run multiple groups of workers handling different endpoints so that
load balancing can be done in different ways.
For `/sync` and `/initialSync` requests it will be more efficient if all
requests from a particular user are routed to a single instance. Extracting a
user ID from the access token or `Authorization` header is currently left as an
exercise for the reader. Admins may additionally wish to separate out `/sync`
requests from a particular user are routed to a single instance. This can
be done e.g. in nginx via IP `hash $http_x_forwarded_for;` or via
`hash $http_authorization consistent;` which contains the users access token.
Admins may additionally wish to separate out `/sync`
requests that have a `since` query parameter from those that don't (and
`/initialSync`), as requests that don't are known as "initial sync" that happens
when a user logs in on a new device and can be *very* resource intensive, so