JMeter：如何知道java.net.SocketTimeoutException 的原因？
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JMeter: How to know the reason of java.net.SocketTimeoutException?
提问by Mahmoud Saleh
i am making load test for my web application, and i set the connect timeout and response timeout to be 20 seconds, and sometimes i am getting exceptions like:
我正在为我的 Web 应用程序进行负载测试，并将连接超时和响应超时设置为 20 秒，有时我会遇到如下异常：
Non HTTP response code: java.net.SocketTimeoutException: Non HTTP response message: Read timed out
i get the above exception in JMeter test result, and there are no errors thrown in my application, and no stacktrace available to trace the exception.
我在 JMeter 测试结果中得到上述异常，并且我的应用程序中没有抛出错误，也没有可用的堆栈跟踪来跟踪异常。
i want to know what is the cause of the message: the app is waiting for something to process or Slow SQL or Hung thread or application is refusing connections because maxed out ?
我想知道消息的原因是什么：应用程序正在等待处理某些事情或慢 SQL 或挂起线程或应用程序拒绝连接，因为已达到极限？
please advise how can i know the reason for this exception and how to fix it.
请告知我如何知道此异常的原因以及如何修复它。
回答by eugene.polschikov
I would recommend you improve debugging activities (in jMeter) in the following way:
我建议您通过以下方式改进调试活动（在 jMeter 中）：
- try to add debug postprocessor to your http sampler
- 尝试将调试后处理器添加到您的 http 采样器
- launch log viewer (jMeter log viewer before any http sampler(-s)/script(-s) execution
- 启动日志查看器（在任何 http 采样器（-s）/脚本（-s）执行之前的 jMeter 日志查看器）
probably this could help you to figure out why you're facing socket timeout. Hope this helps you.
可能这可以帮助您弄清楚为什么您面临套接字超时。希望这对你有帮助。
