node.js 当 URL 在浏览器中工作时，什么可能导致“connect ETIMEDOUT”错误？
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What could cause "connect ETIMEDOUT" error when the URL is working in browser?
提问by Alex
I train myslef with NodeJS and tried a simple GET call. Here is my code:
我用 NodeJS 训练 myslef 并尝试了一个简单的 GET 调用。这是我的代码：
var http = require('http');
var options = {
host: 'www.boardgamegeek.com',
path: '/xmlapi/boardgame/1?stats=1',
method: 'GET'
}
var request = http.request(options, function (response) {
var str = ""
response.on('data', function (data) {
str += data;
});
response.on('end', function () {
console.log(str);
});
});
request.on('error', function (e) {
console.log('Problem with request: ' + e.message);
});
request.end();
The URL called seems to work in my browser https://www.boardgamegeek.com/xmlapi/boardgame/1?stats=1
调用的 URL 似乎在我的浏览器中有效https://www.boardgamegeek.com/xmlapi/boardgame/1?stats=1
Anyway, I've got Problem with request: connect ETIMEDOUTwhen I run the code and I have no idea how to fix it.
无论如何，我遇到了请求问题：当我运行代码时连接 ETIMEDOUT，我不知道如何修复它。
What could cause this error ? Is it my code or is it a network/proxy issue?
什么可能导致此错误？是我的代码还是网络/代理问题？
回答by sdabet
When behind a proxy you need to make the following modifications (as explained in this answer):
在代理后面时，您需要进行以下修改（如本答案中所述）：
- put the proxy host in the
hostparameter - put the proxy port in the
portparameter - put the full destination URL in the
pathparameter :
- 将代理主机放在
host参数中 - 将代理端口放在
port参数中 - 将完整的目标 URL 放在
path参数中：
Which gives:
这使：
var options = {
host: '<PROXY_HOST>',
port: '<PROXY_PORT>',
path: 'http://www.boardgamegeek.com/xmlapi/boardgame/1?stats=1',
method: 'GET',
headers: {
Host: 'www.boardgamegeek.com'
}
}
回答by hema
The following change with the request worked for me:
请求的以下更改对我有用：
var options = {
proxy:'PROXY URL',
uri: 'API URL',
method: 'GET'
}
request(options, function (err, response, body) {
if(err){
console.log('error:', err);
} else {
console.log('body:', body);
}
});
回答by M.Vanderlee
In my case it was a misconfigured subnet. Only one of the 2 subnets in the ELB worked. But my client kept trying to connect to the misconfigured one.
就我而言，这是一个配置错误的子网。ELB 中的 2 个子网中只有一个有效。但是我的客户一直试图连接到配置错误的那个。
回答by Rishikesh Chandra
I was facing this issue on Ubuntu Server while maintaining a node instance on PM2. Basically after restarting the instance after taking the pull I was getting the same error on initial connection of mySQL inside the code.
我在 Ubuntu Server 上遇到了这个问题，同时在 PM2 上维护了一个节点实例。基本上在拉取后重新启动实例后，我在代码中初始连接 mySQL 时遇到相同的错误。
Error: connect ETIMEDOUT
at Connection._handleConnectTimeout (/home/deam_server/node_modules/mysql/lib/Connection.js:419:13)
at Object.onceWrapper (events.js:275:13)
at Socket.emit (events.js:182:13)
at Socket.EventEmitter.emit (domain.js:442:20)
at Socket._onTimeout (net.js:447:8)
at ontimeout (timers.js:427:11)
at tryOnTimeout (timers.js:289:5)
at listOnTimeout (timers.js:252:5)
at Timer.processTimers (timers.js:212:10)
Though the same code was running perfectly on my local machine. After that I used "df" command which helped me to realise that my root directory was 100% occupied. I allotted some memory to the root directory and the restarted the node instance and then it started working fine.
尽管相同的代码在我的本地机器上完美运行。之后我使用了“df”命令，它帮助我意识到我的根目录被 100% 占用。我为根目录分配了一些内存并重新启动了节点实例，然后它开始正常工作。
