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All indexes are showing as invalid, they cannot be rebuilt and no indexing or searching related activity is is working

Answer

PROBLEM

Consider the following symptoms:
  • All indexes are showing as invalid under Configuration > Archive Stores
  • When trying to rebuild an index, the rebuilding does never begin
  • Trying to search for emails is not successful
  • No index or search related activity appears to work
With debug mode enabled, the following error is being logged when the GFI Archiver Search service is being started:
 
..\GFI\Archiver\Search\DebugLogs\IndexManager.log
 
2015-01-14,10:39:36,879,1,"#00000D54","#00000004","info ","IndexManager",">> IndexManager construction" 
2015-01-14,10:39:37,051,1,"#00000D54","#00000004","error ","IndexManager","error: While initialising IndexManager: System.Runtime.InteropServices.SEHException (0x80004005): External component has thrown an exception. 
; at dtssSetOptions2(dtsOptions2* , Int16* ) 
; at DOptions2.Save(DOptions2* ) 
; at dtSearch.Engine.Options.Save() 
; at MArc.Search.Core.DtSearchEnvSettings.ApplySearchOptions() 
; at MArc.Search.Core.IndexManager..ctor()" 

ENVIRONMENT

  • GFI Archiver (64bit versions)
  • All supported environments

SOLUTION

  1. Open the folder: C:\Windows\System32
  2. Check if the following file exists: dtengine64.dll
  3. Move the file to a another folder to ensure that this version is not loaded (for example to the desktop)
  4. Reboot the server
Notes:
  1. If dtengine64.dll is not present in the mentioned folder, search through all folders on the whole system for it and move the files away - but do not move the current versions of the files out of the subfolders of the GFI Archiver installation folder.
  2. If another dtSearch product or another 3rd party product which integrates the dtSearch engine is installed on the system above procedure might break it.

CAUSE

An old version of a DLL file of the dtSearch indexing engine is present on the system which prevents the current version present in the installation folder of GFI Archiver to be loaded successfully.
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  1. Priyanka Bhotika

  2. Posted

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