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We have SharePoint 2010 Server and we are currently experiencing intermittent errors when we search and we get a Correlation Id in the search result page, as shown below:

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Our Search Topology: Two Crawl Components One Query Component Two WFE load balanced

We have enabled verbose for search and here is the result that matches the Correlation Id: f80d7808-dd65-41cd-965c-2af2be1e8640

02/05/2015 16:19:15.81 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Logging Correlation Data xmnv Medium Name=Request (GET:http://technicalservices.sites.company.com:80/apps/MeterTest/_layouts/OSSSearchResults.aspx?k=sharepoint&cs=This%20Site&u=http%3A%2F%2Ftechnicalservices.sites.company.com%2Fapps%2FMeterTest) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.81 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Logging Correlation Data xmnv Medium Site=/apps/MeterTest f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlp4 Verbose QDRA init f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eh4e Verbose CoreResultsWebpart: oninit for xsl upgrade f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eh4f Verbose CoreResultsWebpart: Xsl is NUll or Empty f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn4s High FetchDataFromURL start at(outside if): 1 param: start f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eh4e Verbose CoreResultsWebpart: oninit for xsl upgrade f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.84 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eh4f Verbose CoreResultsWebpart: Xsl is NUll or Empty f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el6t Verbose UserPreference::GetUserPreference - Use cache: 'True'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el73 Verbose UserPreference::GetFromCache - Cache key is '6d07883122ff41e78a5d018cea2fe0c4CORP%5Calbuhaiy'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el75 Verbose UserPreference::GetFromCache - Found a cookie. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el76 Verbose UserPreference::GetFromCache - Cookie is for user preference with default values. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el6v Verbose UserPreference::GetUserPreference - Found object in cache. Object version is '-1'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query el7i Verbose SearchResultsBase: Set query languge to '1033' from user browser f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlo9 Verbose New LocationList f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlp1 Verbose New FullResultLocationList f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration 0000 Verbose SearchAdminUtils::IsHosted - Returning False f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn1p Medium Filter category FASTMaxNumberOfFilters in the config is in wrong format.Input string was not in a correct format. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlp4 Verbose QDRA init f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn5b Verbose not in async post back. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlq1 Verbose Ignoring SupplementaryQueries ' ' because query string ' ' already contains it. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.86 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlp6 Verbose Location LocalSearchIndex triggered f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlm7 Verbose GetResults on location LocalSearchIndex for sharepoint f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query el7b Verbose Using LCID '1033' to issue query f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query fx7v Verbose Using ranking model '' to issue query f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query fg9w Verbose Query::CorrelationStart _CorrelationInitialized is false. ULS indicates that correlation already started. Do not start a new coorelation f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dka1 High SearchServiceApplicationProxy::Execute--Proxy Name:Search Service Application EndPoint: http://SPVM03q:32843/ece1f3cf6d6b4aed8a0f97d1d3719b81/SearchService.svc f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dk8z High SearchServiceApplicationProxy::GetChannel--Channel Creation time: 0 f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.89 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Topology e5mc Medium WcfSendRequest: RemoteAddress: 'http://SPVM03q:32843/ece1f3cf6d6b4aed8a0f97d1d3719b81/SearchService.svc' Channel: 'Microsoft.Office.Server.Search.Administration.ISearchServiceApplication' Action: 'http://tempuri.org/ISearchQueryServiceApplication/Execute' MessageId: 'urn:uuid:cf700878-965b-40c7-b15d-04de86649b8c' f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.91 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dka5 High SearchServiceApplicationProxy::Execute--Error occured: System.ServiceModel.FaultException1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties) at SyncInvokeExecute(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.Se...). f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Topology 8313 Critical SharePoint Web Services Round Robin Service Load Balancer Event: EndpointFailure Process Name: w3wp Process ID: 23356 AppDomain Name: /LM/W3SVC/1864547395/ROOT-1-130676000539112258 AppDomain ID: 2 Service Application Uri: urn:schemas-microsoft-com:sharepoint:service:ece1f3cf6d6b4aed8a0f97d1d3719b81#authority=urn:uuid:08b4cc66087d41f4add0cda845ea2d82&authority=https://SPVM05ap:32844/Topology/topology.svc Active Endpoints: 3 Failed Endpoints:1 Affected Endpoint: http://SPVM03q:32843/ece1f3cf6d6b4aed8a0f97d1d3719b81/SearchService.svc f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlr1 High Exception when fetching results: System.ServiceModel.FaultException1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at MicrosoftOffice.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties) at SyncInvokeExecute(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.Se...). f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlm8 Verbose Ignoring exception fetching opensearch total result counts in location.GetResults: Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Office.Server.Search.Query.Location.GetResults(QueryManager qdra) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlm9 Verbose Ignoring exception fetching opensearch result counts in location.GetResults: Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Office.Server.Search.Query.Location.GetResults(QueryManager qdra) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dln0 Verbose Ignoring exception fetching rss result counts in location.GetResults: Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Office.Server.Search.Query.Location.GetResults(QueryManager qdra) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dln1 Verbose Ignoring exception fetching atom result counts in location.GetResults: Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Office.Server.Search.Query.Location.GetResults(QueryManager qdra) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dln2 Verbose Ignoring exception fetching rdf result counts in location.GetResults: Exception: System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Office.Server.Search.Query.Location.GetResults(QueryManager qdra) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dln3 Verbose GetResults on location LocalSearchIndex for sharepoint completed with 0 results f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eq48 Verbose Metadata threshold is not met: category = Result Type, threshold = 5, actual number filters = 0. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eq48 Verbose Metadata threshold is not met: category = Site, threshold = 5, actual number filters = 0. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eq48 Verbose Metadata threshold is not met: category = Author, threshold = 5, actual number filters = 0. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query eq48 Verbose Metadata threshold is not met: category = Modified Date, threshold = 5, actual number filters = 0. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration 0000 Verbose SearchAdminUtils::IsHosted - Returning False f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration 0000 Verbose SearchAdminUtils::IsHosted - Returning False f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el6t Verbose UserPreference::GetUserPreference - Use cache: 'True'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el73 Verbose UserPreference::GetFromCache - Cache key is '6d07883122ff41e78a5d018cea2fe0c4CORP%5Calbuhaiy'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el74 Verbose UserPreference::GetFromCache - Found a cache copy in current HttpContext. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Administration el6v Verbose UserPreference::GetUserPreference - Found object in cache. Object version is '-1'. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn08 Verbose Location is null or empty. Setting ShouldLogQuery to false f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dn51 Verbose ShouldLogQuery was set to false. So not registring the query logging scripts. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlq1 Verbose Ignoring SupplementaryQueries ' ' because query string ' ' already contains it. f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query dlp6 Verbose Location LocalSearchIndex triggered f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query g1j9 Exception Internal server error exception: System.ServiceModel.FaultException1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at MicrosoftOffice.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties) at SyncInvokeExecute(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.Se...). System.ServiceModel.FaultException1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties) at SyncInvokeExecute(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.Se...). f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.92 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Unified Logging Service c91s Monitorable Watson bucket parameters: SharePoint Server 2010, ULSException14, 06175311 "sharepoint server search", 0e00178d "14.0.6029.0", c180aef3 "mscorlib", 0200c627 "2.0.50727.0", 5265c965 "mon oct 21 19:40:05 2013", 00004220 "00004220", 00000051 "00000051", 09312e13 "faultexception`1", 67316a39 "g1j9" f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.94 w3wp.exe (0x5B3C) 0x3984 SharePoint Server General 7888 Warning A runtime exception was detected. Details follow. Message: Thread was being aborted. Technical Details: System.Threading.ThreadAbortException: Thread was being aborted. at System.Threading.Thread.AbortInternal() at System.Threading.Thread.Abort(Object stateInfo) at System.Web.HttpResponse.End() at System.Web.HttpServerUtility.Transfer(String path) at Microsoft.SharePoint.Utilities.SPUtility.TransferToErrorPage(String message, String linkText, String linkUrl) at Microsoft.Office.Server.Search.WebControls.QueryUIError.GetErrorMessageOrRedirectToErrorPage(Exception ex, Boolean showMessages) at Microsoft.Office.Server.Search.WebControls.CoreResultsDatasourceView.GetXmlResponseDoc(DataSourceSelectArguments selectArguments) at Microsoft.Office.Server.Search.WebControls.CoreResultsWebPart.GetXPathNavigator(String viewPath) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:15.94 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query g1j9 Exception (Watson Reporting Cancelled) System.Threading.ThreadAbortException: Thread was being aborted. at System.Threading.Thread.AbortInternal() at System.Threading.Thread.Abort(Object stateInfo) at System.Web.HttpResponse.End() at System.Web.HttpServerUtility.Transfer(String path) at Microsoft.SharePoint.Utilities.SPUtility.TransferToErrorPage(String message, String linkText, String linkUrl) at Microsoft.Office.Server.Search.WebControls.QueryUIError.GetErrorMessageOrRedirectToErrorPage(Exception ex, Boolean showMessages) at Microsoft.Office.Server.Search.WebControls.CoreResultsDatasourceView.GetXmlResponseDoc(DataSourceSelectArguments selectArguments) at Microsoft.Office.Server.Search.WebControls.CoreResultsWebPart.GetXPathNavigator(String viewPath) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:16.02 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Web Parts 89a1 High Error while executing web part: System.Threading.ThreadAbortException: Thread was being aborted. at System.Threading.Thread.AbortInternal() at System.Threading.Thread.Abort(Object stateInfo) at System.Web.HttpResponse.End() at System.Web.HttpServerUtility.Transfer(String path) at Microsoft.SharePoint.Utilities.SPUtility.TransferToErrorPage(String message, String linkText, String linkUrl) at Microsoft.Office.Server.Search.WebControls.QueryUIError.GetErrorMessageOrRedirectToErrorPage(Exception ex, Boolean showMessages) at Microsoft.Office.Server.Search.WebControls.CoreResultsWebPart.GetXPathNavigator(String viewPath) at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PrepareAndPerformTransform(Boolean bDeferExecuteTransform) f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:16.02 w3wp.exe (0x5B3C) 0x3984 SharePoint Server General 7888 Warning A runtime exception was detected. Details follow. Message: Thread was being aborted. Technical Details: System.Threading.ThreadAbortException: Thread was being aborted. at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PrepareAndPerformTransform(Boolean bDeferExecuteTransform) at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PerformSelect() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.DataBind() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.EnsureDataBound() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.CreateChildControls() at Microsoft.Office.Server.Search.WebControls.SearchResultsBaseWebPart.CreateChildControls() at Microsoft.Office.Server.Search.WebControls.CoreResultsWebPart.CreateChildControls() f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:16.02 w3wp.exe (0x5B3C) 0x3984 SharePoint Server Search Query g1j9 Exception (Watson Reporting Cancelled) System.Threading.ThreadAbortException: Thread was being aborted. at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PrepareAndPerformTransform(Boolean bDeferExecuteTransform) at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PerformSelect() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.DataBind() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.EnsureDataBound() at Microsoft.SharePoint.WebPartPages.DataFormWebPart.CreateChildControls() at Microsoft.Office.Server.Search.WebControls.SearchResultsBaseWebPart.CreateChildControls() at Microsoft.Office.Server.Search.WebControls.CoreResultsWebPart.CreateChildControls() f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:16.09 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Monitoring b4ly High Leaving Monitored Scope ( CreateChildControls#2). Execution Time=169.774510447557 f80d7808-dd65-41cd-965c-2af2be1e8640
02/05/2015 16:19:16.09 w3wp.exe (0x5B3C) 0x3984 SharePoint Foundation Monitoring b4ly Medium Leaving Monitored Scope (Request (GET:http://technicalservices.sites.company.com:80/apps/MeterTest/_layouts/OSSSearchResults.aspx?k=sharepoint&cs=This%20Site&u=http%3A%2F%2Ftechnicalservices.sites.company.com%2Fapps%2FMeterTest)). Execution Time=289.383985953522 f80d7808-dd65-41cd-965c-2af2be1e8640

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  • could you tell us about your search structure?
    – Supermode
    Commented Feb 5, 2015 at 23:29
  • I am curious when you started getting this error compared to when you installed foundation. It's definitely above the application layer. Either an update didn't take correctly or a bad install. Something like that
    – user39389
    Commented Feb 6, 2015 at 4:26
  • This has been going on for a while, I don't know when since users don't report these kind of issues, and as I mentioned it is intermittent so if you hit search button for 3 or 4 times it starts to work.
    – Yas72
    Commented Feb 6, 2015 at 14:41
  • I will edit my question and add the search topology in the question
    – Yas72
    Commented Feb 6, 2015 at 14:42

2 Answers 2

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We had the same issue in one of our SharePoint 2010 farm.

The issue was present when the search is made on the portal web application and the request is being accepted from a particular Web Front End form the NLB that is running the Query Component.

When the Search Proxy get the information for the Round Robin from the Topology.svc it returns the endpoint of the other Web Front End (also running the NLB) to consume the Search service.

We can see in the following logs, that the request is taken from the Web Front End HQINTRANET6:

02/24/2015 07:24:59.06  w3wp.exe (WFE2:0x08CC)  0x15BC  SharePoint Foundation   Logging Correlation Data    xmnv    Medium  Name=Request (GET:https://xx.xx.xx:443/teams/it/_layouts/OSSSearchResults.aspx?k=component%20architecture&cs=This%20Site&u=https%3A%2F%xxx.xxx.xxx%2Fteams%2Fit)    8941c03e-7bf0-4279-882a-2e4565f2bf01

The Search Proxy gets from the Round Robin through the toplogy.scv to use the server other WFE server to comunicate with the Query Component

02/24/2015 07:25:02.12  w3wp.exe (WFE2:0x08CC)  0x15BC  SharePoint Server Search    Query   dka1    High    SearchServiceApplicationProxy::Execute--Proxy Name:Search Service Application HQ Proxy EndPoint: http://wfe1:32843/d202320d995c414d8f05740b9b1a67c4/SearchService.svc   8941c03e-7bf0-4279-882a-2e4565f2bf01

Then execute the web service communication to WFE1

02/24/2015 07:25:02.12  w3wp.exe (WFE2:0x08CC)  0x15BC  SharePoint Foundation   Topology    e5mc    Medium  WcfSendRequest: RemoteAddress: 'http://wfe1:32843/d202320d995c414d8f05740b9b1a67c4/SearchService.svc' Channel: 'Microsoft.Office.Server.Search.Administration.ISearchServiceApplication' Action: 'http://tempuri.org/ISearchQueryServiceApplication/Execute' MessageId: 'urn:uuid:80e09afb-ebe4-4681-873c-bd7dea9f6bae' 8941c03e-7bf0-4279-882a-2e4565f2bf01

And finally it fails

02/24/2015 07:25:02.17  w3wp.exe (WFE2:0x08CC)  0x15BC  SharePoint Foundation   Topology    8313    Critical    SharePoint Web Services Round Robin Service Load Balancer Event: EndpointFailure Process Name: w3wp Process ID: 2252 AppDomain Name: /LM/W3SVC/1118435341/ROOT-1-130692465557673411 AppDomain ID: 2 Service Application Uri: urn:schemas-microsoft-com:sharepoint:service:d202320d995c414d8f05740b9b1a67c4#authority=urn:uuid:519c6e88f0bd4cb69b2a03f4c4a20445&authority=https://wf1:32844/Topology/topology.svc Active Endpoints: 2 Failed Endpoints:1 Affected Endpoint: http://wfe1:32843/d202320d995c414d8f05740b9b1a67c4/SearchService.svc 8941c03e-7bf0-4279-882a-2e4565f2bf01

The ULS log shows:

Issue while communicating to the other Query Compoment

The issue is described as:

SearchServiceApplicationProxy::Execute--Error occured: System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.Runtime.InteropServices.COMException: Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA)   
 at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)    
 at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute()    
 at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties)    
 at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties)    
 at SyncInvokeExecute(Object , Object[] , Object[] )    
 at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)    
 at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)    
 at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)    
 at System.Se...).

Solution:

The policy setting 'Do not forcefully unload the user registry at user logoff' counters the default behavior of Windows 2008. When enabled, Windows 2008 does not forcefully unload the registry and waits until no other processes are using the user registry before it unloads it.

The policy can be found in the group policy editor (gpedit.msc)

Computer Configuration->Administrative Templates->System-> UserProfiles ->Do not forcefully unload the user registry at user logoff

Location of the local group policy

Change the setting from “Not Configured” to “Enabled”, which disables the new User Profile Service feature.

'DisableForceUnload' is the value added automatically to the registry of the server: enter image description here

This change had to be applied on every server you had defined in the farm that has the Query Component running.

Finally, apply an IISRESET on all the Query Servers to make the change effectible.

After testing again, we get the communication works between the Query components of the SharePoint farm:

Now is working fine

So, I hope this can help you to solve your issue that seems to be very similar to the issue we had faced recently.

Cheers! Javier.

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Thanks for Javier for his detailed explanation. I have tried his method, but it worked for a while then it broke. What I did to resolve the issue is:

https://social.technet.microsoft.com/Forums/office/en-US/d7ec17e8-8e0d-4ff6-a8c8-d271839c81e2/search-server-error-illegal-operation-attempted-on-a-registry-key-that-has-been-marked-for?forum=sharepointadminprevious#aa11f490-fcd9-48d3-bbd9-7549a3b1b39f

  1. Stopped/Started the SecurityTokenService application pool in IIS on all servers in the farm

  2. Stopped/Started the Search Query and Site Settings Service (in Central Admin, manage services on Server) on all the servers that host query activity

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