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From "Jarek Bogusz (Jira)" <>
Subject [jira] [Created] (LUCENENET-646) Application pool crashes due to missing index file
Date Mon, 10 Feb 2020 15:10:00 GMT
Jarek Bogusz created LUCENENET-646:

             Summary: Application pool crashes due to missing index file
                 Key: LUCENENET-646
             Project: Lucene.Net
          Issue Type: Bug
          Components: Lucene.Net Core
    Affects Versions: Lucene.Net 3.0.3
         Environment: Windows Server 2016, vers 1607.

.net version (Release value in regedit: 460805).
            Reporter: Jarek Bogusz
         Attachments:, e1.jpg, e1.txt, e2.jpg, e2.txt, e3.jpg,

This problem is critical because when it happens the application pool crashes and the entire
website stops working with 503 error code.

Errors are visible in Windows Event Log (Application), attached.

When index files are deleted and index is rebuilt the problem goes away.

I was not able to reproduce the problem by copying corrupted index files (also attached) to
another server.

By googling the error message it looks like it's coming from file CompoundFileReader.cs, method

if (entry == null)
 throw new System.IO.IOException("No sub-file with id " + id + " found");

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