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https://issues.apache.org/jira/browse/LUCENENET-374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905910#action_12905910
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Paul Gunn commented on LUCENENET-374:
-------------------------------------
Hi Digy, I notice that this may also be an issue in the main lucene project
[segmentinfo.java]. Would you recommend also posting the issue there so they
can investigate / consume the fix? Or is there already a process in place for
backporting resolutions to these kinds of issues?
> IndexReader.IsCurrent returning false positive in some cases
> ------------------------------------------------------------
>
> Key: LUCENENET-374
> URL: https://issues.apache.org/jira/browse/LUCENENET-374
> Project: Lucene.Net
> Issue Type: Bug
> Environment: Lucene 2.9.2.2
> Reporter: Paul Gunn
> Attachments: SegmentInfo.patch
>
>
> I've isolated the issue to a pretty small test case [below].
> Under the covers, it looks like NrtIsCurrent is returning 'true' incorrectly
> when documents are deleted & then committed [but before any other documents
> are added].
> Please let me know if any addition data is needed to repro. Thanks, Paul
> Lucene.Net.Store.RAMDirectory ramDir = new
> Lucene.Net.Store.RAMDirectory();
> Lucene.Net.Index.IndexWriter writer = new
> Lucene.Net.Index.IndexWriter(ramDir, new
> Lucene.Net.Analysis.KeywordAnalyzer(), true, new
> Lucene.Net.Index.IndexWriter.MaxFieldLength(1000) );
> Lucene.Net.Documents.Field field = new
> Lucene.Net.Documents.Field("TEST", "mytest",
> Lucene.Net.Documents.Field.Store.YES,
> Lucene.Net.Documents.Field.Index.ANALYZED);
> Lucene.Net.Documents.Document doc = new
> Lucene.Net.Documents.Document();
> doc.Add(field);
> writer.AddDocument(doc);
> Lucene.Net.Index.IndexReader reader = writer.GetReader();
> writer.DeleteDocuments(new Lucene.Net.Index.Term("TEST",
> "mytest"));
> bool iscurrent1 = reader.IsCurrent(); // FALSE as expected
> writer.Commit();
> bool iscurrent2 = reader.IsCurrent(); // returns TRUE now -
> Incorrect
> System.Diagnostics.Debug.Assert(iscurrent1 == iscurrent2); //
> ASSERT FAILs
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