Do Background Processing Without Using Windows Service?
Mar 11, 2011
I have an web application which needs some calculations and processing on data. This job is a long running job(few hours). Job is initiated by user.
Requirement.
User Clicks on Process Data.
Some functions are called to start data processing.
Data Processing runs for hours.
User is given feedback of percentage completed etc.
Even if user logs off and then again log on he should get this feedback.
The requirement is somewhat similar to Spiceworks. Where it runs in background to detect the devices/computers in network and the user is notified in his page about the progress. But spicework uses windows service. We don't want to us windows service.
Now the question is.
What if user closes the page, will the task still run in background. This task has to be completed fully.If terminated in between output will not have any meaning. How to actually to design this long running process. In ASP.Net environment. Also is there a way to show all/same user who logs in the status of processing.
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Caveats: NONE
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Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
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Line 122: <clear />
Line 123: <add
Line 124: type="Grb.Security.FrameworkRoleProvider"
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Line 126: </providers>
Source File: D:inetpubAssistweb.config Line: 124
Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082
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Public Overloads Overrides Sub Initialize(ByVal name As String, ByVal config As System.Collections.Specialized.NameValueCollection)
Try
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Throw New ArgumentNullException("config")
End If
If String.IsNullOrEmpty(name) Then
name = Me.GetType().BaseType.Name
End If
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config.Remove(DescriptionKey)
config.Add(DescriptionKey, SR.GetString(SR.RoleSqlProvider_description))
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MyBase.Initialize(name, config)
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End If
End If
Catch ex As Exception
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End Try
End Sub
WEB.CONFIG:
<?xml version="1.0"?>
<configuration>
<configSections>
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/>
<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere" />
<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"
/>
<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"
/>
<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication" />
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<add key="EmailSigningPfxFilePathAndName" value="" />
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<pages>
<controls>
<add tagPrefix="aspajax" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add tagPrefix="ajaxToolkit" namespace="AjaxControlToolkit" assembly="AjaxControlToolkit" />
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-->
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<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</httpModules>
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<httpRuntime maxRequestLength="1048576" />
<sessionState mode="InProc" timeout="60" />
<!-- note: Set authentication timeout >= session timeout (session timeout will clear authentication timeout upon session_start) -->
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<authorization>
<deny users="?"/>
<allow users="*"/>
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<membership defaultProvider="FrameworkMembershipProvider1" userIsOnlineTimeWindow="15">
<providers>
<clear />
<add
name="FrameworkMembershipProvider1"
type="Grb.Security.FrameworkMembershipProvider"
applicationName="Product1"
passwordRetrieval="false"
passwordReset="true"
requiresQuestionAndAnswer="false"
requiresUniqueEmail="true"
passwordFormat="Hashed"
minRequiredNonalphanumericCharacters="0"
minRequiredPasswordLength="4"
passwordStrengthRegularExpression="^[a-zA-Z0-9]+$"
passwordStrengthFailedMessage="The password must be only alpha-numeric characters."
frameworkDomainName="Master"
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maximumInvalidPasswordAttemptLockoutMinutes="30"/>
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<providers>
<clear />
<add name="FrameworkRoleProvider1"
type="Grb.Security.FrameworkRoleProvider"
applicationName="MyApplication1" />
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</roleManager>
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<system.web.extensions>
<scripting>
<webServices>
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<!--
<jsonSerialization maxJsonLength="500">
<converters>
<add name="ConvertMe" type="Acme.SubAcme.ConvertMeTypeConverter"/>
</converters>
</jsonSerialization>
-->
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<!--
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-->
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writeAccessProperties="propertyname1,propertyname2" />
-->
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<scriptResourceHandler enableCompression="true" enableCaching="true" />
-->
</scripting>
</system.web.extensions>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<remove name="ScriptModule" />
<add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
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<handlers>
<remove name="WebServiceHandlerFactory-Integrated" />
<remove name="ScriptHandlerFactory" />
<remove name="ScriptHandlerFactoryAppServices" />
<remove name="ScriptResource" />
<remove name="WebServiceHandlerFactory-ISAPI-2.0"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
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<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
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<authorization>
<allow users="*"/>
</authorization>
</system.web>
</location>
<location path="Portal.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="Login.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="PasswordChange.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="PasswordForgot.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="PasswordEntry.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
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The rational is that if a user is "timed-out" and presses a button to load a control into ControlLoader, the ControlLoader validation will catch this condition and tell the parent page to reload (so the Login page doesn't appear in the modal-dialog).
-->
<location path="ControlLoader.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="Documents/AccountServices.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="Documents/TermsOfUse.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="SystemAlertService.asmx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<system.net>
<mailSettings>
<smtp from="[URL]">
<!-- example: host="[URL]-->
<network
host=""
port="25"
defaultCredentials="true" />
</smtp>
</mailSettings>
</system.net>
</configuration>
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