Since that issue has been around for a while, I guess it might interest a few.

We've released a little module that handles the keep alive logic right from inside DNN.

It simply installs/uninstalls a dedicated HttpModule that pings the application at Dispose time, which is enough to pass through the recycling.

You can download it with source code for free here (registration required)

Cheers

Yep you understood correctly, that's it. And it's not DNN exclusive. It's really just about pinging late enough just before the worker is recycled. Application_End, application dispose or any httpmodule dispose time seem good candidate. I went for the latter.

Hi
This looks like a good idea and so I tried but instructions for use seem to have eluded me.

The wording on the download site seems to imply that the module is installed automatically so maybe it does not need to be on a page. By the way I did not need to register as the file was already live to public download.

On a new 4.41 medium trust shared hosting install if I try to put the module on a page I get an error message:

Modula Page Error is:
DotNetNuke.Services.Exceptions.ModuleLoadException: An error occurred loading a configuration file: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (machine.config) ---> System.Configuration.ConfigurationErrorsException: An error occurred loading a configuration file: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (machine.config) ---> System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) at System.Security.CodeAccessPermission.Demand() at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) at System.Configuration.Internal.InternalConfigHost.StaticOpenStreamForRead(String streamName) at System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName, Boolean assertPermissions) at System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName) at System.Configuration.Internal.DelegatingConfigHost.OpenStreamForRead(String streamName) at System.Configuration.UpdateConfigHost.OpenStreamForRead(String streamName) at System.Configuration.BaseConfigurationRecord.InitConfigFromFile() The action that failed was: Demand The type of the first permission that failed was: System.Security.Permissions.FileIOPermission The Zone of the assembly that failed was: MyComputer --- End of inner exception stack trace --- at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal) at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors) at System.Configuration.Configuration..ctor(String locationSubPath, Type typeConfigHost, Object[] hostInitConfigurationParams) at System.Configuration.Internal.InternalConfigConfigurationFactory.System.Configuration.Internal.IInternalConfigConfigurationFactory.Create(Type typeConfigHost, Object[] hostInitConfigurationParams) at System.Web.Configuration.WebConfigurationHost.OpenConfiguration(WebLevel webLevel, ConfigurationFileMap fileMap, VirtualPath path, String site, String locationSubPath, String server, String userName, String password, IntPtr tokenHandle) at System.Web.Configuration.WebConfigurationManager.OpenWebConfigurationImpl(WebLevel webLevel, ConfigurationFileMap fileMap, String path, String site, String locationSubPath, String server, String userName, String password, IntPtr userToken) at System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(String path) at Aricie.DNNPaceMaker.PaceMakerConfig.HttpModuleExists() at Aricie.DNNPaceMaker.PaceMakerConfig.AssertHttpModuleInstalled() at Aricie.DNNPaceMaker.PaceMakerConfig.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

Thanks