在论坛中点击搜索链接，搜索"msdn"，得到如下错误页面：

Server Error in '/' Application.
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Lock obtain timed out
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.IOException: Lock obtain timed out

Source Error:


Line 36: int numStart = 1;
Line 37: int numTotal;
Line 38: ForumMessages messageList = SearchSystem.Search( qsSearch, qsInTitle, numStart-1, 50, out numTotal );
Line 39:
Line 40: abcNumTotal.Text = numTotal.ToString();


Source File: d:\zhaix\websites\cndev.org#www\forum\search.aspx Line: 38

Stack Trace:


[IOException: Lock obtain timed out]
Lucene.Net.Store.Lock.Obtain(Int64 lockWaitTimeout) +176
Lucene.Net.Index.IndexReader.Delete(Int32 docNum) +57
NoxForum.Search.SearchSystem.Search(String Text, Boolean isSearchTitleOnly, Int32 numStart, Int32 pagesize, Int32& numTotal) +560
ASP.forum_search_aspx.Page_Load() in d:\zhaix\websites\cndev.org#www\forum\search.aspx:38
System.Web.Util.CalliHelper.ArglessFunctionCaller(IntPtr fp, Object o) +5
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +781903
System.Web.UI.Control.OnLoad(EventArgs e) +99
NoxForum.Framework.Pages.BasePage.OnLoad(EventArgs e) +79
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061




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Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42