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fix(cache): strip heavy fields from aggregate blob to pass 2MB limit #2188

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Merged
Flotapponnier merged 1 commit into from
Aug 28, 2026
Merged

fix(cache): strip heavy fields from aggregate blob to pass 2MB limit #2188

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35 changes: 33 additions & 2 deletions src/lib/aggregate-blob.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,37 @@ import type { Benchmark } from "@/types/benchmark";
import { loadSpecsUncached } from "@/lib/materialize/load";
import { overlayEditorial, slimBenchmarkForCache } from "@/lib/spec";

// Aggressive slim for the aggregate blob. Hub pages (homepage, categories,
// chains, products) only need card data — they never render editorial text
// or metric panels. Stripping these fields drops the serialized aggregate
// from ~4.3 MB to well under the 2 MB unstable_cache ceiling.
//
// Fields stripped beyond slimBenchmarkForCache (which already removes
// 7d/30d series):
// - extras.seriesByRegion24h (only used on bench detail pages)
// - metricPanels (only used on bench detail pages)
// - seoIntro, faq, disclaimer (editorial, bench detail only)
// - perChainExplainer (bench detail + worker's sitemap.json handles sitemap)
// - findings, methodology (bench detail only; required fields → [])
// - abstract (bench detail only; required field → "")
function slimForBlobAggregate(b: Benchmark): Benchmark {
const base = slimBenchmarkForCache(b);
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const { seriesByRegion24h: _sbr, ...slimExtras } = base.extras;
return {
...base,
extras: slimExtras,
metricPanels: undefined,
seoIntro: undefined,
faq: undefined,
perChainExplainer: undefined,
disclaimer: undefined,
findings: [],
methodology: [],
abstract: "",
};
}

// On any Vercel deployment (production or preview), use the self-hosted
// CDN proxy (/api/aggregate on openchainbench.com) so Vercel functions
// pay ~1 ms (edge cache hit) instead of ~12 s fetching the 7.5 MB blob
Expand Down Expand Up @@ -113,7 +144,7 @@ async function fetchAndProject(): Promise<Benchmark[] | null> {
for (const bench of raw.benches) {
const spec = specBySlug.get(bench.slug);
if (!spec) continue; // Bench in blob no longer has a spec — skip.
projected.push(slimBenchmarkForCache(overlayEditorial(bench, spec)));
projected.push(slimForBlobAggregate(overlayEditorial(bench, spec)));
}
return projected.sort((a, b) =>
(a.number ?? "").localeCompare(b.number ?? ""),
Expand All @@ -130,6 +161,6 @@ async function fetchAndProject(): Promise<Benchmark[] | null> {
*/
export const loadAggregateFromBlob = unstable_cache(
fetchAndProject,
["aggregate-blob-v2"],
["aggregate-blob-v3"],
{ revalidate: 60, tags: ["bench-aggregate", "benchmarks"] },
);
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