问题
I tried to create Excel document through openXml lib, but when i wanna create Excel from large number of data, server shoe me Unable to create mutex. (Exception from HRESULT: 0x80131464) error, the stack trace is :
[IsolatedStorageException: Unable to create mutex. (Exception from HRESULT: 0x80131464)]
System.IO.IsolatedStorage.IsolatedStorageFile.Open(String infoFile, String syncName) +0
System.IO.IsolatedStorage.IsolatedStorageFile.Lock(Boolean& locked) +370
System.IO.IsolatedStorage.IsolatedStorageFileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, IsolatedStorageFile isf) +468
System.IO.IsolatedStorage.IsolatedStorageFileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, IsolatedStorageFile isf) +35
MS.Internal.IO.Packaging.SafeIsolatedStorageFileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, ReliableIsolatedStorageFileFolder folder) +102
MS.Internal.IO.Packaging.PackagingUtilities.CreateUserScopedIsolatedStorageFileStreamWithRandomName(Int32 retryCount, String& fileName) +276
MS.Internal.IO.Packaging.SparseMemoryStream.EnsureIsolatedStoreStream() +31
MS.Internal.IO.Packaging.SparseMemoryStream.SwitchModeIfNecessary() +400
MS.Internal.IO.Packaging.CompressEmulationStream.Write(Byte[] buffer, Int32 offset, Int32 count) +76
MS.Internal.IO.Packaging.CompressStream.Write(Byte[] buffer, Int32 offset, Int32 count) +431
MS.Internal.IO.Zip.ProgressiveCrcCalculatingStream.Write(Byte[] buffer, Int32 offset, Int32 count) +177
MS.Internal.IO.Zip.ZipIOModeEnforcingStream.Write(Byte[] buffer, Int32 offset, Int32 count) +130
System.Xml.XmlUtf8RawTextWriter.FlushBuffer() +7519035
System.Xml.XmlUtf8RawTextWriter.RawText(Char* pSrcBegin, Char* pSrcEnd) +232
System.Xml.XmlUtf8RawTextWriter.WriteStartElement(String prefix, String localName, String ns) +192
System.Xml.XmlWellFormedWriter.WriteStartElement(String prefix, String localName, String ns) +7517920
DocumentFormat.OpenXml.OpenXmlElement.WriteTo(XmlWriter xmlWriter) +283
DocumentFormat.OpenXml.OpenXmlCompositeElement.WriteContentTo(XmlWriter w) +114
DocumentFormat.OpenXml.OpenXmlElement.WriteTo(XmlWriter xmlWriter) +316
DocumentFormat.OpenXml.OpenXmlCompositeElement.WriteContentTo(XmlWriter w) +114
DocumentFormat.OpenXml.OpenXmlPartRootElement.WriteTo(XmlWriter xmlWriter) +404
DocumentFormat.OpenXml.OpenXmlPartRootElement.SaveToPart(OpenXmlPart openXmlPart) +217
DocumentFormat.OpenXml.Packaging.OpenXmlPackage.SavePartContents() +203
DocumentFormat.OpenXml.Packaging.OpenXmlPackage.Dispose(Boolean disposing) +32
DocumentFormat.OpenXml.Packaging.OpenXmlPackage.Dispose() +24
Yara.Evento.Utility.Office.Excel.Write.Do(List`1 objects, String sheetName, HeaderList headerNames) +2371
Yara.Evento.Management.Web.Controllers.TicketController.List(String button, Nullable`1 page, String startDate, String endDate, String ownerMail, String eventName, String mobile, String eMail, String ticketCode, Int32 sort, Boolean desc, Int32 eventId, Int32 status, Int32 variantId) +13628
lambda_method(Closure , ControllerBase , Object[] ) +864
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +264
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +124
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +726390
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +309
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +726324
System.Web.Mvc.Controller.ExecuteCore() +159
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +334
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +62
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +15
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +52
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +606
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +288
回答1:
It also seems that changing ApplicationPool's Identity to LocalSystem does not always help which was in my case with Windows Server 2009 R2. The strange thing is that it worked for about half a year since I have read this topic and fixed my problem with large OpenXML-based reports but several days ago it just stopped working.
So after a day of research I found that additionally in ApplicationPool's Advanced Settings set Load User Profile to True (default value was False) and no problems again.
回答2:
I change application pool Identity to higher level account with full control access in IIS.
IIS> application pools>advanced setting>Identity (in process mode)>choose an account with higher access
回答3:
I agree with @Behrooz, change the the ApplicationPool's Identity to LocalSystem and it will work.
I didn't have this problem when the project was running on my PC's local host, but I did when I deployed it to the Server..
See this screenshot:
回答4:
OpenXML uses IsolatedStorage for large file sizes. More info at http://www.lyquidity.com/devblog/?p=65
You can find isolatedStorage folder in C:\Users\username\AppData\Local. What we found was that when this folder was empty we weren't getting the "Unable to create Mutex" exception. We also weren't getting the exception right after we would restart our IIS. We figured out it's got to be something to do with other web apps using and locking that folder, hence the mutex exception from OpenXml.
After more searching we found that DotNetOpenAuth might also be using Isolated storage as per https://github.com/DotNetOpenAuth/DotNetOpenAuth/issues/381 for it's reporting feature. Some of our apps were using it and the moment they started up they would create files and folders in the IsolatedStorage folder after which the Mutex exception would start happening.
You can disable DotNetOpenAuth reporting by changing the following flag to false in your Web.config
<reporting enabled="true"/>
This fixed it for us
来源：https://stackoverflow.com/questions/19465653/openxml-and-unable-to-create-mutex