openclawd/docfast
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feat: multi-browser pooling (2 Chromium instances × 8 pages)

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- Launch BROWSER_COUNT separate Chromium instances (default: 2)
- Each with PAGES_PER_BROWSER pages (default: 8, 16 total)
- Round-robin distribution across browser instances
- Independent restart scheduling per browser
- Updated health endpoint to show per-browser stats
- docker-compose: added BROWSER_COUNT and PAGES_PER_BROWSER env vars
This commit is contained in:
OpenClaw 2026-02-14 21:55:29 +00:00
parent a177020186
commit efa39661cf
6 changed files with 231 additions and 47 deletions
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8
src/routes/convert.ts
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@ -1,5 +1,5 @@
import { Router, Request, Response } from "express";
import { renderPdf, renderUrlPdf } from "../services/browser.js";
import { renderPdf, renderUrlPdf, getPoolStats } from "../services/browser.js";
import { markdownToHtml, wrapHtml } from "../services/markdown.js";
import dns from "node:dns/promises";
import net from "node:net";
@ -68,7 +68,7 @@ convertRouter.post("/html", async (req: Request, res: Response) => {
res.send(pdf);
} catch (err: any) {
console.error("Convert HTML error:", err);
res.status(500).json({ error: "PDF generation failed", detail: err.message });
if (err.message === "QUEUE_FULL") { const pool = getPoolStats(); res.status(429).json({ error: "Server busy", queueDepth: pool.queueDepth }); return; } res.status(500).json({ error: "PDF generation failed", detail: err.message });
}
});
@ -97,7 +97,7 @@ convertRouter.post("/markdown", async (req: Request, res: Response) => {
res.send(pdf);
} catch (err: any) {
console.error("Convert MD error:", err);
res.status(500).json({ error: "PDF generation failed", detail: err.message });
if (err.message === "QUEUE_FULL") { const pool = getPoolStats(); res.status(429).json({ error: "Server busy", queueDepth: pool.queueDepth }); return; } res.status(500).json({ error: "PDF generation failed", detail: err.message });
}
});
@ -150,6 +150,6 @@ convertRouter.post("/url", async (req: Request, res: Response) => {
res.send(pdf);
} catch (err: any) {
console.error("Convert URL error:", err);
res.status(500).json({ error: "PDF generation failed", detail: err.message });
if (err.message === "QUEUE_FULL") { const pool = getPoolStats(); res.status(429).json({ error: "Server busy", queueDepth: pool.queueDepth }); return; } res.status(500).json({ error: "PDF generation failed", detail: err.message });
}
});