I am getting the following exception in cluster.Connect while performing load testing in my application.
All hosts tried for query failed (tried :: SocketException 'A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond'; :: SocketException 'A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond'; ...)
The exception is thrown only when I overwhelm my application with a large number of requests (1000 or more). However, it seems to work fine for small number of requests because of which I am eliminating the possibility of a firewall issue. For some reason, this call gets stuck which leads to a deadlock in my application. Any help is greatly appreciated. Thanking in advance.
Regards,
Sitakanta Mishra
Related
I would like to know on TcpClient's NetworkStream what exactly happen if timeout occurs.
While debugging the code i found that after request is sent and if no data is received within mention timeout period it throws below exception and unfortunately closes the connection (TcpClient.Connected become false):
Unable to read data from the transport connection: A connection
attempt failed because the connected party did not properly respond
after a period of time, or established connection failed because
connected host has failed to respond.
It throws the exception is okay, but i would like to know how i can prevent it from closing the connection.
It would be great if someone can provide more insights on this.
Have you checked this one? Reconnect TCPClient after interruption I think if you have a long enough TTL of your TCP Connection, should an exception occurs (I believe you would get thrown a SocketException) you can catch that up and initiate your retry logic. There are several implementations for this and obviously that would depend on the use case but normally there is a number of attempts (configuration value) before "giving up" connecting. That way your manager will retry connecting X number of times and will carry on if there is a successful connection otherwise will propagate up in the chain the exception.
In a dotNet mvc application, while trying to send requests to a http url, my application is working as expected. However, when I try to send requests to a https url, I get the following error ( upon publishing the app in IIS and running it in a web browser) :
Server Error in '/dotnetstage' Application.
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 10.63.64.146:443
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 10.63.64.146:
I understand that it has got something to do with the SSL certificates, so I found that there's a way to ignore certificate validation:
WebRequest webRequest = WebRequest.Create(reqURL);
ServicePointManager.ServerCertificateValidationCallback += delegate { return true; }; //this line works for the certificate validation ignoring
Even then, I am getting the same error. I have two queries:
Am I adding the ServicePointManager line at the proper place? If not
what is the correct location where you add this in your code?
Is there anything else I need to take care of ?
Any help or at least a pointer towards the right approach will be higly appreciated. Stack Overflow helped me a lot with learning to code in c# mvc apps and build complex caller applications in a matter of 4 weeks and I look forward to getting a quick solution to this as well. Thanks. :)
The ServerCertificateValidationCallback should be defined first before making the web request. But in your case the issue is totally different it could be that the web server side code crashed before it could send a response back.
I am trying to connect to gateway.sandbox.push.apple.com through "apns-sharp" class library, but all I get is the following error message: "A connection attempt failed because the connected party did not properly
respond after a period of time, or established connection failed because connect
ed host has failed to respond 17.172.238.209:2195"
Why Is That?
Your provider may not allow to go out using port 2195.
I'm making a webform that will go to a site, grab the rss feeds in xml format and read them into a XmlTextReader to be formated and displayed in my site.
I have this line which takes care of the reaching the other site
XmlTextReader reader = new XmlTextReader(#"http://www.wired.com/threatlevel/feed/");
When I run this from my localHost it runs fine. But once it gets publish on a 1and1 server it fails with the following error.
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 72.246.94.16:80
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 72.246.94.16:80
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Any ideas what can it be?
Many Thanks!
You're probably being blocked by an outbound firewall at 1&1.
Contact 1&1 and ask them to disable it, or switch to a better host. (you get what you pay for)
I am writing a WinCE app in C# that makes an HTTP POST to an APACHE server residing on my network. Because of some network issues (I am guessing), I get the following exception in the managed code
System.Net.Sockets.SocketException occurred
Message="A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
ErrorCode=10060
NativeErrorCode=10060
StackTrace:
at System.Net.Sockets.Socket.ConnectNoCheck(EndPoint remoteEP)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at System.Net.Connection.doConnect(IPEndPoint ep)
at System.Net.Connection.connect(Object ignored)
at System.Threading.ThreadPool.WorkItem.doWork(Object o)
at System.Threading.Timer.ring()
This exception isn't always thrown, but when it is thrown, my app fails to connect to the server AT ALL. Repeated connection attempts don't help in reconnecting either. The only thing that helps is closing and re-deploying the app.
I can't catch the exception because its inside of managed code. Is there any way to circumvent this and close all socket connections to my server and re-initialize them? Is there something I am doing wrong?
The exception message looks a bit misleading ("connection attempt failed because the connected party") but I think it means your hardware is communicating with the server, but the server is not accepting the connection on the TCP level.
A problem I could think of is "hanging" connections, causing the server to reach the maximum number of concurrent connections and to stop accepting new ones.
Although it's just a guess, you might want to check the apache log if you can to see if you can find out if the server reports anything, and perhaps try restarting apache as soon as the problem occurs again. If that helps, you still need to find the cause of course.