loadtest errors - socketexception and timeout

Question

Hi,

    I am using VS2010 ultimate for performance testing of application. While running the loadtest for 200 users with 1 hour duration i got lots of timeout errors and Socket exception errors. I have adjusted step user pattern so that 200 users will ramp up in 20 minutes and I am using a mix of scenarios. I do not get these erros for lower user count of 50 users.

    the socket exceptions are mainly of two types

     1)

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 66.203.202.61:443

   2)

An existing connection was forcibly closed by the remote host

   can anybody please explain me why should I be getting these errors. Which area I should look for to investigate this issue?

Answer 1

Hello rishabhw,

These kind of errors ae generally encountered when the web server runs out of the resources.

Have you monitored the counters on the Web Server related to network,processor, memory and other resources? There could be a bottleneck!

-Tejas.

Answer 2

Thanks for Tejas’s help.

Hi rishabhw,

Glad to see you again.

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 66.203.202.61:443

Like this thread:  getting Socket exception In performance testing, Tejas’s and Ruiz gave us the reason why we get this issue.

Reference: An existing connection was forcibly closed by the remote host.

Best Regards,

---

Jack Zhai [MSFT]
MSDN Community Support | Feedback to us

Answer 3

  Hi,

     Thank you Tejas and Jack. This issue is on the web server side and it is being taken care of by the concerned team.