環境描述

　　Windows 2012 R2，SharePoint 2013(沒有sp1補丁)，sql server 2012

錯誤描述

　　搜索服務正常，但是爬網一直在Crawling Full，但是爬不到任何東西，而且不會停止，爬了一宿什么都沒有爬到：

　　爬網不止，爬了一宿什么都沒有爬到，錯誤如下：

?　　去15/logs里面找日志；
Non-OAuth request. IsAuthenticated=True, UserIdentityName=0#.w|domain\user, ClaimsCount=125 b5b2d49c-feb7-e08b-ecf7-28204da68508

UserAgent not available, file operations may not be optimized.??? at Microsoft.SharePoint.SPFileStreamManager.CreateCobaltStreamContainer(SPFileStreamStore spfs, ILockBytes ilb, Boolean copyOnFirstWrite, Boolean disposeIlb)???? at Microsoft.SharePoint.SPFileStreamManager.SetInputLockBytes(SPFileInfo& fileInfo, SqlSession session, PrefetchResult prefetchResult)???? at Microsoft.SharePoint.CoordinatedStreamBuffer.SPCoordinatedStreamBufferFactory.CreateFromDocumentRowset(Guid databaseId, SqlSession session, SPFileStreamManager spfstm, Object[] metadataRow, SPRowset contentRowset, SPDocumentBindRequest& dbreq, SPDocumentBindResults& dbres)???? at Microsoft.SharePoint.SPSqlClient.GetDocumentContentRow(Int32 rowOrd, Object ospFileStmMgr, SPDocumentBindRequest& dbreq, SPDocumentBindResults& dbres...

The crawler could not communicate with the server. Check that the server is available and that the firewall access is configured correctly.

　　事件查看器報錯；
WebHost failed to process a request.
Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/63363381
Exception: System.ServiceModel.ServiceActivationException: The service '/90ac4adbb96a4e89892b2ad7ab02da51/MetadataWebService.svc' cannot be activated due to an exception during compilation.? The exception message is: The farm is unavailable.. ---> System.InvalidOperationException: The farm is unavailable.
?? at Microsoft.SharePoint.Administration.Claims.SPSecurityTokenServiceManager.get_Local()
?? at Microsoft.SharePoint.IdentityModel.SPServiceIssuerNameRegistry..ctor()
?? at Microsoft.SharePoint.SPServiceHostOperations.Configure(ServiceHostBase serviceHost, SPServiceAuthenticationMode authenticationMode)
?? at Microsoft.SharePoint.Taxonomy.MetadataWebServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses)
?? at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
?? at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(ServiceActivationInfo serviceActivationInfo, EventTraceActivity eventTraceActivity)
?? at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
?? --- End of inner exception stack trace ---
?? at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
?? at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath, EventTraceActivity eventTraceActivity)
Process Name: w3wp
Process ID: 6004

解決方法

　　事件查看器錯誤，參考下面link解決，但是沒有解決爬網的問題：

https://social.technet.microsoft.com/Forums/en-US/ef415574-2e89-4fd9-8538-c49eef3366c6/searchservicesvc-cannot-be-activated-due-to-an-exception-during-compilation-the-exception?forum=sharepointsearch

　　經過一天的掙扎，終于決定刪掉搜索服務，重建！經過重建，發現報錯更嚴重了，搜索主機控制服務連不上了；然后，查看搜索主機控制服務，發現和搜索服務運行賬號不是一個，更新成一個以后，搜索服務正常了，爬網也沒有問題了！