Attempt a GC before taking a snapshot

Dockerfile

@@ -68,4 +68,4 @@ EXPOSE 3000
 ENV PORT 3000
 ENV NEXT_TELEMETRY_DISABLED 1
 
-CMD ["pm2-runtime", "node", "--", "server.js"]
+CMD ["pm2-runtime", "node", "--", "server.js", "--", "--expose-gc"]

src/pages/api/internal/heap-dump.ts

@@ -5,6 +5,9 @@ import { createReadStream } from 'node:fs';
 
 export default JobEndpoint(async function getHeapDump(req: NextApiRequest, res: NextApiResponse) {
   const localPath = `/tmp/heapdump-${Date.now()}.heapsnapshot`;
+  if (global.gc) {
+    global.gc();
+  }
   writeHeapSnapshot(localPath);
 
   const readStream = createReadStream(localPath);