Javascript 木偶演员（论赫罗库）：如何防止挂铬过程？
我们在一个简单的Node.js应用程序中使用Puppeter创建“作为服务”的屏幕截图。我们在Heroku上运行这个程序，很快我们看到铬进程一直挂起。因此，服务器内存不足，应用程序开始出现故障。以下是最近执行的Javascript 木偶演员（论赫罗库）：如何防止挂铬过程？,javascript,node.js,puppeteer,Javascript,Node.js,Puppeteer,我们在一个简单的Node.js应用程序中使用Puppeter创建“作为服务”的屏幕截图。我们在Heroku上运行这个程序，很快我们看到铬进程一直挂起。因此，服务器内存不足，应用程序开始出现故障。以下是最近执行的ps命令的结果： PID STARTED TIME STAT CMD 1 Sun Jan 19 20:02:19 2020 00:00:00 S ps-run 4 Sun Jan 19 20:0
ps PID STARTED TIME STAT CMD
1 Sun Jan 19 20:02:19 2020 00:00:00 S ps-run
4 Sun Jan 19 20:02:20 2020 00:00:11 Sl node app.js
35 Sun Jan 19 20:02:21 2020 00:00:00 Ss /usr/sbin/sshd -f /app/.ssh/sshd_co
36 Sun Jan 19 20:02:21 2020 00:00:00 S bash --login -c node app.js
73 Sun Jan 19 20:02:22 2020 00:00:24 Sl /app/.heroku/node/bin/node /app/app
78 Sun Jan 19 20:02:22 2020 00:00:24 Sl /app/.heroku/node/bin/node /app/app
997 Sun Jan 19 20:33:30 2020 00:00:22 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
999 Sun Jan 19 20:33:30 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
1012 Sun Jan 19 20:33:30 2020 00:02:02 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
1014 Sun Jan 19 20:33:30 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
1021 Sun Jan 19 20:33:30 2020 00:06:44 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
5030 Mon Jan 20 00:29:34 2020 00:00:15 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
5032 Mon Jan 20 00:29:34 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
5045 Mon Jan 20 00:29:34 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
5051 Mon Jan 20 00:29:34 2020 00:01:26 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
5054 Mon Jan 20 00:29:34 2020 00:04:49 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
7088 Mon Jan 20 03:26:01 2020 00:00:10 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
7090 Mon Jan 20 03:26:01 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
7103 Mon Jan 20 03:26:01 2020 00:00:56 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
7105 Mon Jan 20 03:26:01 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
7111 Mon Jan 20 03:26:01 2020 00:03:06 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
10972 Mon Jan 20 07:02:55 2020 00:00:04 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
10974 Mon Jan 20 07:02:55 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
10988 Mon Jan 20 07:02:55 2020 00:00:22 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
10990 Mon Jan 20 07:02:55 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
10996 Mon Jan 20 07:02:55 2020 00:01:13 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
11660 Mon Jan 20 07:23:37 2020 00:00:03 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
11662 Mon Jan 20 07:23:37 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
11677 Mon Jan 20 07:23:38 2020 00:00:19 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
11679 Mon Jan 20 07:23:38 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
11687 Mon Jan 20 07:23:38 2020 00:01:03 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12132 Mon Jan 20 07:29:31 2020 00:00:03 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
12134 Mon Jan 20 07:29:31 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
12147 Mon Jan 20 07:29:31 2020 00:00:17 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12148 Mon Jan 20 07:29:31 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12156 Mon Jan 20 07:29:31 2020 00:00:59 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12790 Mon Jan 20 07:56:29 2020 00:00:02 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
12792 Mon Jan 20 07:56:29 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
12805 Mon Jan 20 07:56:29 2020 00:00:13 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12808 Mon Jan 20 07:56:29 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
12814 Mon Jan 20 07:56:29 2020 00:00:44 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
13268 Mon Jan 20 08:02:03 2020 00:00:02 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
13270 Mon Jan 20 08:02:03 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
13282 Mon Jan 20 08:02:03 2020 00:00:12 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
13285 Mon Jan 20 08:02:03 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
13293 Mon Jan 20 08:02:03 2020 00:00:43 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
13862 Mon Jan 20 08:23:30 2020 00:00:00 Ssl /app/node_modules/puppeteer/.local-chromium/linux-686
13864 Mon Jan 20 08:23:30 2020 00:00:00 S /app/node_modules/puppeteer/.local-chromium/linux-686
13885 Mon Jan 20 08:23:35 2020 00:00:05 Sl /app/.heroku/node/bin/node /app/app
13891 Mon Jan 20 08:23:36 2020 00:00:00 Sl /app/node_modules/puppeteer/.local-chromium/linux-686
15045 Mon Jan 20 08:39:23 2020 00:00:00 S ssh -o ServerAliveInterval=30 -o Se
17156 Mon Jan 20 09:09:33 2020 00:00:00 Ss sshd: u55786 [priv]
17158 Mon Jan 20 09:09:33 2020 00:00:00 R sshd: u55786@pts/0
17159 Mon Jan 20 09:09:34 2020 00:00:00 Ss -bash
17769 Mon Jan 20 09:20:49 2020 00:00:00 R+ ps -eo pid,lstart,time,stat,cmd
(async () => {
try {
const browser = await puppeteer.launch({
defaultViewport: { width: windowSize.width, height: windowSize.height },
ignoreHTTPSErrors: true,
args: ['--no-sandbox', '--disable-setuid-sandbox', '--disable-dev-shm-usage', '--disable-infobars', '--hide-scrollbars', '--no-default-browser-check', '--bwsi']
});
const page = await browser.newPage();
await page.setDefaultTimeout(20000);
await page.goto(urlToScreenshot);
await page.waitForFunction(jsReadyTest, { polling: 500 });
await page.waitFor(500);
await page.screenshot({ type: "jpeg", quality: 70 }).then(function (buffer) {
res.setHeader('Content-Disposition', 'attachment;filename="' + urlToScreenshot + '.jpg"');
res.setHeader('Content-Type', 'image/jpg');
res.send(buffer);
});
await browser.close();
} catch (exception) {
res.send('Runtime exception!');
}
})();
--no-zygote--不能使用任何合子来完全禁用合子过程的使用。这是在保持分叉的环境中运行无头Chrome所必需的
服务器（如合子）是不必要的和/或不实用的
您可以使用--no-zygote
命令参数。据
--不能使用任何合子来完全禁用合子过程的使用。这是在保持分叉的环境中运行无头Chrome所必需的
服务器（如合子）是不必要的和/或不实用的
你能试着加上“--没有受精卵”的论点吗？谢谢，hardkoded。到目前为止，这似乎工作得很好…你能尝试添加“--没有受精卵”的论点吗？谢谢，hardkoded。到目前为止，这似乎工作得很好……此外，我将await browser.close（）
移动到try…catch
的finally
部分，如中的代码示例所示。--no-zytoe
再加上这个似乎可以完美地完成这项工作！此外，我将wait browser.close（）
移动到try…catch
的finally
部分，如中的代码示例所示。--no-zytoe
再加上这个似乎可以完美地完成这项工作！