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How to increase timeout for your ASP.NET Application ?

A. executionTimeout attribute of httpRuntime element (web.config):

ASP.NET will timeout the request, if it is not completed within “executionTimeout” duration value. And System.Web.HttpException: Request timed out exception will be thrown by ASP.NET Application.
executionTimeout attribute of httpRuntime element (in the web.config) can be used to change the request timeout duration for ASP.NET Application. executionTimeout  value is specified in seconds. Default value is 110 seconds.
  1. <configuration>
  2. <system.web>
  3. <httpRuntime targetFramework="4.5.1" executionTimeout="500" />
  4. </system.web>
  5. </configuration>

B. timeout attribute of sessionState element (web.config):

If the user remains idle for duration specified in timeout attribute vaule of sessionState element (in web.config), then his session will expire.

timeout attribute of sessionState element (in the web.config) can be used to change session timeout duration for ASP.NET Application. timeout value is specified in minutes. Default value is 20 minutes.
  1. <configuration>
  2. <system.web>
  3. <sessionState timeout="20"></sessionState>
  4. </system.web>
  5. </configuration>

C. Idle Time-out Settings for an Application Pool (IIS):

If the worker process remain idle for duration specified in Idle Time-out Settings for an Application Pool , then worker process will shut down.
Idle Time-out Settings for an Application Pool value is specified in minutes. The default value for Idle Time-out Settings for an Application Pool is 20 minutes.
IIS Application Poll - Idle timeout

D. SqlCommand.CommandTimeout (SQL SERVER):

ADO.NET will wait for duration specified in SqlCommand.CommandTimeout before cancelling the query.
  1. using (var connection = new SqlConnection(connectionString))
  2. {
  3. connection.Open();
  4. SqlCommand command = new SqlCommand(queryString, connection);
  5. // Setting command timeout to 100 second
  6. command.CommandTimeout = 100;
  7. command.ExecuteNonQuery();
  8. }
SqlCommand.CommandTimeout value is specified in seconds.  The default value of  SqlCommand.CommandTimeout is 30 seconds.

E. SqlConnection.ConnectionTimeout:

If connection is not opened within the duration specified in SqlConnection.ConnectionTimeout, timeout exception will be thrown.
  1. Data Source=(local);Initial Catalog=TechCartNow;Integrated Security=SSPI;Connection Timeout=30

SqlConnection.ConnectionTimeout value is specified in seconds.  The default value of  SqlCommand.CommandTimeout is 15 seconds.


Ref: https://www.techcartnow.com/increase-timeout-asp-net-application/

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