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feat(proxy-fitness): throttle egress geo probe + aggregate failure log

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Refuse re-probing failures too fast: 500/429 failures get a 2h backoff,
other errors 30m (flapping relays/quota stops hammering ipinfo every pass,
passes every 30 min instead of 15). One-line summary per pass
(geo N/M · fail: rate×a server×b) replaces the per-pool error wall.
New env POOL_GEO_PROBE_DISABLED=1 turns the feature off.
This commit is contained in:
MUH. IQRAM BAHRING
2026-08-07 07:16:29 +08:00
parent c1bbe446de
commit 3c4bd4f1e5
2 changed files with 63 additions and 38 deletions
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open-sse/services/poolGeo.js
+20 -27
View File
@@ -21,19 +21,6 @@ export const POOL_GEO_TTL_MS = 60 * 60 * 1000;
// How many past egress IPs to remember for flapping detection.
export const POOL_GEO_IP_HISTORY_MAX = 8;
// Debounce probe-failure logs: one line per failing pool per hour — the probe
// runs every 30 min, so a broken relay must not spam the log every pass.
const probeFailLogs = new Map(); // proxyUrl -> lastLoggedAt
const PROBE_FAIL_LOG_INTERVAL_MS = 60 * 60 * 1000;
function logProbeFailure(kind, proxyUrl, detail) {
const key = String(proxyUrl || "");
const now = Date.now();
if (probeFailLogs.has(key) && now - probeFailLogs.get(key) < PROBE_FAIL_LOG_INTERVAL_MS) return;
probeFailLogs.set(key, now);
console.log(`[GeoProbe] ${kind} ${key.slice(0, 60)}${detail ? ` | ${detail.slice(0, 120)}` : ""}`);
}
// Test helper: drop all cached geo (module state is globalThis-backed).
export function resetPoolGeo() {
geoCache.clear();
@@ -96,10 +83,12 @@ export function pruneStaleGeo(now = Date.now()) {
}
// Probe the egress geo of one pool via ipinfo through the pool. Fail-open:
// returns null on any error/timeout. `pool` shape: { proxyUrl, type }.
// returns { ok:true, geo } on success, { ok:false, error } otherwise with
// `error` one of "rate-limit" | "server" | "no-ip" | "network" | "timeout".
// `pool` shape: { proxyUrl, type }.
export async function probePoolGeo(pool, timeoutMs = 15000) {
const proxyUrl = pool?.proxyUrl;
if (!proxyUrl) return null;
if (!proxyUrl) return { ok: false, error: "network" };
const { proxyAwareFetch } = await import("../utils/proxyFetch.js");
const isRelay = ["vercel", "cloudflare", "deno"].includes(pool?.type);
const proxyOptions = isRelay
@@ -112,25 +101,29 @@ export async function probePoolGeo(pool, timeoutMs = 15000) {
const res = await proxyAwareFetch("https://ipinfo.io/json", { signal: ctrl.signal }, proxyOptions);
if (!res.ok) {
const txt = await res.text().catch(() => "");
logProbeFailure(`http ${res.status}`, proxyUrl, txt);
return null;
const error = res.status === 429 || res.status === 403 ? "rate-limit"
: res.status >= 500 ? "server"
: "network";
return { ok: false, error, detail: `${res.status} ${txt.slice(0, 60)}` };
}
const data = await res.json().catch(() => null);
if (!data?.ip) {
logProbeFailure("no-ip", proxyUrl, "");
return null;
return { ok: false, error: "no-ip" };
}
return {
ip: data.ip || "",
country: data.country || "",
region: data.region || "",
city: data.city || "",
org: data.org || "",
isDatacenter: /(cloudflare|vercel|amazon|aws|google|microsoft|azure|digitalocean|hetzner|ovh|contabo|leaseweb)/i.test(String(data.org || "")),
ok: true,
geo: {
ip: data.ip || "",
country: data.country || "",
region: data.region || "",
city: data.city || "",
org: data.org || "",
isDatacenter: /(cloudflare|vercel|amazon|aws|google|microsoft|azure|digitalocean|hetzner|ovh|contabo|leaseweb)/i.test(String(data.org || "")),
},
};
} catch (error) {
logProbeFailure("fail", proxyUrl, `${error?.name}: ${error?.message}`);
return null;
const timedOut = ctrl.signal?.aborted && error?.name === "AbortError";
return { ok: false, error: timedOut ? "timeout" : "network", detail: `${error?.name}: ${error?.message}` };
} finally {
clearTimeout(timer);
}