Not enough disk space on server causes some aspx to error

[chibbie23]

I have a website that's running on windows 2000 SP4. In the server, there is the prompt "There is no enough disk space to install all available updates. Click 'Yes' for help on freeing up disk space"

I did not do any disk maintenance, i would like to wait for the network admin to do it. However, some pages of my asp.net application started to error out. Here's the stocktrace:

-------------------------------------------------------

Last Error : System.Web.HttpException: There is not enough space on the disk.
---> System.IO.IOException: There is not enough space on the disk.

at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.FileStream.FlushWrite()
at System.IO.FileStream.Flush()
at System.IO.FileStream.Dispose(Boolean disposing)
at System.IO.FileStream.Close()
at System.IO.Stream.System.IDisposable.Dispose()
at System.Web.StringResourceBuilder.CreateResourceFil e(String resFileName)
at System.Web.Compilation.Base compile r.Get compile dType()
at System.Web.UI.PageParser. compile IntoType()
at System.Web.UI.TemplateParser.GetParserCacheItemThr oughCompilation()
--- End of inner exception stack trace ---
at System.Web.UI.TemplateParser.GetParserCacheItemInt ernal(Boolean fCreateIfNotFound)
at System.Web.UI.TemplateParser.GetParserCacheItemWit hNewConfigPath()
at System.Web.UI.TemplateParser.GetParserCacheItem()
at System.Web.UI.TemplateControlParser. compile AndGetParserCacheItem(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.TemplateControlParser.Get compile dInstance(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.PageParser.Get compile dPageInstanceInternal(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.PageHandlerFactory.GetHandler(HttpCo ntext context, String requestType, String url, String path)
at System.Web.HttpApplication.MapHttpHandler(HttpCont ext context, String requestType, String path, String pathTranslated, Boolean useAppConfig)
at System.Web.MapHandlerExecutionStep.System.Web.Http Application+IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean& completedSynchronously)
Stack Trace : at System.Web.UI.TemplateParser.GetParserCacheItemInt ernal(Boolean fCreateIfNotFound)
at System.Web.UI.TemplateParser.GetParserCacheItemWit hNewConfigPath()
at System.Web.UI.TemplateParser.GetParserCacheItem()
at System.Web.UI.TemplateControlParser. compile AndGetParserCacheItem(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.TemplateControlParser.Get compile dInstance(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.PageParser.Get compile dPageInstanceInternal(String virtualPath, String inputFile, HttpContext context)
at System.Web.UI.PageHandlerFactory.GetHandler(HttpCo ntext context, String requestType, String url, String path)
at System.Web.HttpApplication.MapHttpHandler(HttpCont ext context, String requestType, String path, String pathTranslated, Boolean useAppConfig)
at System.Web.MapHandlerExecutionStep.System.Web.Http Application+IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean& completedSynchronously)
Source : System.Web
Message : There is not enough space on the disk.

-------------------------------------------------------

Note that these screens do not actually have filewriting in them. They inherit System.Web.UI.Page. I'm running a little dry here, any help is greatly appreciated.

[Rabbit]

Just because none of your code does any writing to the drive doesn't mean that no writing takes place. It could be caching data by writing to the drive, or compiling and writing to the disk, or any number of other activites that can use the drive for temporary storage.

[chibbie23]

It's a pretty old code, one of our legacy applications here. I'm aware that appending string variables over and over again may cause memory leak (that's why i prefer string builders), but does it cache it on the disk itself or just the temporary memory?

Also, can you further explain the "compiling" part, this happens in run time of the live application.

Thanks.

[Rabbit]

Caching usually involves disk space. There's also OS overhead that may affect it. For example, running this code could be so memory intensive that the OS needs to allocate more space for the paging file but can't because there's not enough.

At some point, your code has to be converted into a form that can be read by the processor. This most likely uses some disk space.

[chibbie23]

Yeah, you're right, i didn't know untill now that the application I'm maintaining is writing logs every now and then. That triggers the error for me. Thanks so much for the help.