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Unable to create Lucene writer (lock file is in use)

Forums > Performance and Optimization
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MohitSahu

New Around Here



Posts:3
New Around Here




1/31/2024 5:32 AM

    Hi,

    We are facing issue in the DNN version 9.10.2, below are the error details

    General Exception: AbsoluteURL DefaultDataProvider DotNetNuke.Data.SqlDataProvider DotNetNuke
    Message:Unable to create Lucene writer (lock file is in use). Please recycle AppPool in IIS to release lock.


    We have checked the admin logs and the error logged 50 times in a second and causing database timeout. Could you please have a look and provide the solution.

    https://imgur.com/a/VFWjWWl

     






    Michael Tobisch

    Veteran Member



    Posts:1124
    Veteran Member




    1/31/2024 10:01 AM
      Did you double check if the app pool account has modify permissions in the folder Lucene uses (/App_Data/Search)?

      Happy DNNing!
      Michael

      Michael Tobisch
      DNN★MVP

      dnnWerk Austria
      DNN Connect





      Will Strohl

      Veteran Member



      Posts:1254
      Veteran Member




      1/31/2024 12:46 PM

        This also sounds like a permissions issue to me.  🤔 

        https://dnnsupport.dnnsof...ng-up-the-DNN-Folder

        Will Strohl

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        Daniel Valadas

        Advanced Member



        Posts:140
        Advanced Member




        1/31/2024 12:54 PM
          2 other things to consider:
          - The scheduler running too often
          - The application pool running multiple worker processes (IIS -> Application Pool -> Advanced Settings -> Maximum Worker Processes = 1





          Michael Tobisch

          Veteran Member



          Posts:1124
          Veteran Member




          2/1/2024 4:34 AM
            Another possible cause that comes to my mind is the virus scanner - you should define an exception, even if you use MS Defender.

            Happy DNNing!
            Michael

            Michael Tobisch
            DNN★MVP

            dnnWerk Austria
            DNN Connect





            Marco Alvarado

            Advanced Member



            Posts:187
            Advanced Member




            2/1/2024 9:29 PM

              If you have an specific application pool for this website you can also look at the amount of MB assigned to the pool, it could be that it's not enough MB for the amount of traffic and it could be part of the problem.

              Ing. Marco Alvarado Gómez MSc | Globalode
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