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feat(storcon): retrieve feature flag and pass to pageservers (#12324)

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## Problem

part of https://github.com/neondatabase/neon/issues/11813

## Summary of changes

It costs $$$ to directly retrieve the feature flags from the pageserver.
Therefore, this patch adds new APIs to retrieve the spec from the
storcon and updates it via pageserver.

* Storcon retrieves the feature flag and send it to the pageservers.
* If the feature flag gets updated outside of the normal refresh loop of
the pageserver, pageserver won't fetch the flags on its own as long as
the last updated time <= refresh_period.

Signed-off-by: Alex Chi Z <chi@neon.tech>
This commit is contained in:
Alex Chi Z.
2025-06-25 10:58:18 -04:00
committed by GitHub
parent 517a3d0d86
commit 6c77638ea1
14 changed files with 294 additions and 33 deletions
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2
storage_controller/Cargo.toml
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@@ -27,6 +27,7 @@ governor.workspace = true
hex.workspace = true
hyper0.workspace = true
humantime.workspace = true
humantime-serde.workspace = true
itertools.workspace = true
json-structural-diff.workspace = true
lasso.workspace = true
@@ -34,6 +35,7 @@ once_cell.workspace = true
pageserver_api.workspace = true
pageserver_client.workspace = true
postgres_connection.workspace = true
posthog_client_lite.workspace = true
rand.workspace = true
reqwest = { workspace = true, features = ["stream"] }
routerify.workspace = true