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https://issues.apache.org/jira/browse/LUCENENET-113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590489#action_12590489
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Pauli Østerø commented on LUCENENET-113:
----------------------------------------
digy> The case is really simple. I have a an update routine that either creates
or opens my index, delete all the documents and adds new ones to it
IndexWriter indexWriter;
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
indexWriter = new Lucene.Net.Index.IndexWriter(this.dir, new
StandardAnalyzer(), true);
}
else
{
deleteDocuments();
indexWriter = new Lucene.Net.Index.IndexWriter(this.dir, new
StandardAnalyzer(), false);
}
addSpeeddial(indexWriter);
addEmployees(indexWriter);
indexWriter.Optimize();
indexWriter.Close();
the UnauthorizedException always appears in either addSpeeddial or
AddEmployees, which is basicly just routines for fetching out information from
a database and adding a document
... create fields-stringbuilder
doc.Add(new Field("fields", fields.ToString().Trim(),
Field.Store.NO, Field.Index.TOKENIZED));
addDocument(doc, writer);
And now in my addDocument i have my try catch
private void addDocument(Document doc, IndexWriter writer)
{
try
{
writer.AddDocument(doc);
}
catch (UnauthorizedAccessException exc)
{
Thread.Sleep(100);
writer.AddDocument(doc);
}
}
The bug appeared when releasing the code into production, and i think the
reason why i havent experienced it in development is because my testmachines
have a rather slow connection to the database meaning that addDocument()
wasn't beeing called so rapidly as on my production environment.
I'll look into the cache of files-thing, but i doubt it since its on a
production server without svn or stuff like that.
> adding documents to index does, in rare cases, cause an access denied to
> segments.gen
> -------------------------------------------------------------------------------------
>
> Key: LUCENENET-113
> URL: https://issues.apache.org/jira/browse/LUCENENET-113
> Project: Lucene.Net
> Issue Type: Bug
> Environment: Windows 2003
> Lucene.Net 2.1.0.3
> Reporter: Pauli Østerø
> Priority: Critical
>
> When updating an index via an indexwriter, does cause an access denied for
> segments.gen.
> After investigation with FileMon the problem seems to be Lucene deleting and
> creating the segments.gen with such a speed, that Windows occasionally
> reports "DELETE PEND" when trying to open the file, which causes Lucene to
> crash.
> A quick fix has been to do a try-catch when adding documents, and sleeping
> the thread for 100 ms when encountering the UnathorizedException and trying
> to add the document again.
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