Question

I’m using it in Quartz.Net framework. Every Job(thread) has only one web request

Here is the check list:

• All disposable objects are used in using block!

  using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
          using (Stream stream = response.GetResponseStream())
          using (StreamReader reader = new StreamReader(stream))
              str = reader.ReadToEnd();
  

• ServicePointManager.Expect100Continue = false;
• ServicePointManager.DefaultConnectionLimit = 1000;
• ServicePointManager.MaxServicePoints = 1000;
• request.KeepAlive=false
• request.Timeout = 5000;
• request.ReadWriteTimeout = 5000;
• request.ServicePoint.ConnectionLeaseTimeout = 5000;
• request.ServicePoint.MaxIdleTime = 5000;

I’m using Stopwatch to measure web request time. These are that logs:

Abnormal Web Request time: 16333 ms

Abnormal Web Request time: 8350 ms

Abnormal Web Request time: 9846 ms

Abnormal Web Request time: 7545 ms

Abnormal Web Request time: 6662 ms

Abnormal Web Request time: 18332 ms

Any Idea?

PS: This question is summarized version of Timeout supported Multithreaded Web Request

Answer 1

Only lesson that I learned from this problem: If you are using HttpWebRequest in multiple threads don’t use it synchronous!