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proxy: report metrics based on cold start info (#7324)

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## Problem

Would be nice to have a bit more info on cold start metrics.

## Summary of changes

* Change connect compute latency to include `cold_start_info`.
* Update `ColdStartInfo` to include HttpPoolHit and WarmCached.
* Several changes to make more use of interned strings
This commit is contained in:
Conrad Ludgate
2024-04-05 16:14:50 +01:00
committed by GitHub
parent 0fa517eb80
commit 55da8eff4f
17 changed files with 274 additions and 160 deletions
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proxy/src/auth/backend/link.rs
+1 -2
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@@ -102,8 +102,7 @@ pub(super) async fn authenticate(
ctx.set_user(db_info.user.into());
ctx.set_project(db_info.aux.clone());
let cold_start_info = db_info.aux.cold_start_info.clone().unwrap_or_default();
info!(?cold_start_info, "woken up a compute node");
info!("woken up a compute node");
// Backwards compatibility. pg_sni_proxy uses "--" in domain names
// while direct connections do not. Once we migrate to pg_sni_proxy