解决.net core3.1 在CentOS中Http请求超时The operation has timed out

解决.net core3.1 在CentOS中Http请求超时The operation has timed out

360发表于2020-07-21

今天部署到Linux得.Net Core程序突然不能发送微信通知了,但是在本机是可以得。后来查看服务器日志发现后台报错:

The operation has timed out

更改了超时时间还是不行。

原有核心代码如下:

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
    var result = streamReader.ReadToEnd();
}

经过排查问题,找到问题,httpResponse资源没有释放,当并发高得时候就会出现这个问题。

后来加上using完美解决问题。

调整后得代码如下:

using(var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse())
{
	using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
	{
		var result = streamReader.ReadToEnd();
	}
}
参考资料:

https://stackoverflow.com/questions/16744432/httpwebrequest-getresponse-keeps-getting-timed-out
https://xamarin.github.io/bugzilla-archives/19/19913/bug.html
https://stackoverflow.com/questions/48785681/the-operation-has-timed-out-at-system-net-httpwebrequest-getresponse-while-sen

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