所以我在Windows共享主机上的Umbraco 7实例上获得了一个例外。似乎在任意一段时间之后问题出现了Lucene索引（我的API不直接调用），并且应用程序进入错误状态直到刷新应用程序池。任何帮助将不胜感激。
2015-08-04 05:57:08,413 [7] ERROR Umbraco.Core.UmbracoApplicationBase
- [Thread 342] An unhandled exception occurred
System.IO.IOException: The device is not ready.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.ReadCore(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.FileStream.Read(Byte[] array, Int32 offset, Int32 count)
at System.IO.BinaryReader.Read(Byte[] buffer, Int32 index, Int32 count)
at Lucene.Net.Store.SimpleFSDirectory.SimpleFSIndexInput.ReadInternal(Byte[] b, Int32 offset, Int32 len)
at Lucene.Net.Store.BufferedIndexInput.Refill()
at Lucene.Net.Store.BufferedIndexInput.ReadByte()
at Lucene.Net.Store.IndexInput.ReadVInt()
at Lucene.Net.Index.TermBuffer.Read(IndexInput input, FieldInfos fieldInfos)
at Lucene.Net.Index.SegmentTermEnum.Next()
at Lucene.Net.Index.SegmentTermEnum.ScanTo(Term term)
at Lucene.Net.Index.TermInfosReader.Get(Term term, Boolean useCache)
at Lucene.Net.Index.TermInfosReader.Terms(Term term)
at Lucene.Net.Index.SegmentReader.Terms(Term t)
at Lucene.Net.Index.DirectoryReader.MultiTermEnum..ctor(IndexReader topReader, IndexReader[] readers, Int32[] starts, Term t)
at Lucene.Net.Index.DirectoryReader.Terms(Term term)
at Lucene.Net.Search.WildcardTermEnum..ctor(IndexReader reader, Term term)
at Lucene.Net.Search.WildcardQuery.GetEnum(IndexReader reader)
at Lucene.Net.Search.MultiTermQuery.ConstantScoreAutoRewrite.Rewrite(IndexReader reader, MultiTermQuery query)
at Lucene.Net.Search.WildcardQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.BooleanQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.BooleanQuery.Rewrite(IndexReader reader)
at Lucene.Net.Search.IndexSearcher.Rewrite(Query original)
at Lucene.Net.Search.Query.Weight(Searcher searcher)
at Lucene.Net.Search.Searcher.CreateWeight(Query query)
at Lucene.Net.Search.Searcher.Search(Query query, Filter filter, Int32 n, Sort sort)
at Examine.LuceneEngine.SearchResults.DoSearch(Query query, IEnumerable`1 sortField, Int32 maxResults)
at Examine.LuceneEngine.Providers.BaseLuceneSearcher.Search(ISearchCriteria searchParams, Int32 maxResults)
at Examine.LuceneEngine.Providers.BaseLuceneSearcher.Search(ISearchCriteria searchParams)
at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedMediaCache.GetUmbracoMedia(Int32 id)
at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedMediaCache.GetById(UmbracoContext umbracoContext, Boolean preview, Int32 nodeId)
at Umbraco.Web.PublishedCache.ContextualPublishedCache`1.GetById(Boolean preview, Int32 contentId)
at Umbraco.Web.UmbracoHelper.TypedMedia(Object id)
at ASP._Page_Views_HomePageCarouselItem_cshtml.Execute() in g:\pleskvhosts\crossfitbyob.com\httpdocs\Views\HomePageCarouselItem.cshtml:line 7
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model)
at ASP._Page_Views_HomePageCarouselFolder_cshtml.Execute() in g:\pleskvhosts\crossfitbyob.com\httpdocs\Views\HomePageCarouselFolder.cshtml:line 8
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.HtmlHelper.RenderPartialInternal(String partialViewName, ViewDataDictionary viewData, Object model, TextWriter writer, ViewEngineCollection viewEngineCollection)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model, ViewDataDictionary viewData)
at System.Web.Mvc.Html.PartialExtensions.Partial(HtmlHelper htmlHelper, String partialViewName, Object model)
at ASP._Page_Views_HomePage_cshtml.Execute() in g:\pleskvhosts\crossfitbyob.com\httpdocs\Views\HomePage.cshtml:line 9
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
at System.Web.WebPages.StartPage.RunPage()
at System.Web.WebPages.StartPage.ExecutePageHierarchy()
at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1a.<InvokeActionResultWithFilters>b__17()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1a.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass1a.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.<BeginInvokeAction>b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
答案 0 :(得分：0)
Azure网站使用的远程文件系统可能会对Lucene造成严重破坏，我们已经看过很多次这个错误了。我只能假设Godaddy还为他们的IIS网站使用远程文件服务器。
基本上解决方案是在本地临时asp.net存储上运行你的Umbraco lucene索引。在最新版本的Umbraco（7.2.8+）中，此功能内置于核心，您可以为索引器和搜索器使用LocalOnly配置标志，例如：
<add name="InternalIndexer" type="UmbracoExamine.UmbracoContentIndexer, UmbracoExamine"
supportUnpublished="true"
supportProtected="true"
analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"
useTempStorage="LocalOnly"/>
<add name="InternalSearcher" type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine"
analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"
useTempStorage="LocalOnly"/>
如果您使用的是旧版本的Umbraco，您可以使用名为TempStorage的自定义库：https://github.com/Shazwazza/UmbracoExamine.TempStorage
此问题已记录在此处：http://issues.umbraco.org/issue/U4-3222但大多数讨论和解决方案都在此处：https://our.umbraco.org/forum/getting-started/installing-umbraco/20999-Disable-Lucene-Examine#comment-228320