1

我们使用 lucene.net 2.0 版 dll 在文档中进行搜索。一旦我们发布了文档，文档的内容就会被传递给 lucene 用于索引。一切正常。但是现在当我们发布另一个文档时，它会抛出以下错误：

System.IO.IOException: read past EOF
at Lucene.Net.Store.BufferedIndexInput.Refill()
at Lucene.Net.Store.BufferedIndexInput.ReadByte()
at Lucene.Net.Store.IndexInput.ReadInt()
at Lucene.Net.Index.IndexWriter.ReadDeleteableFiles()
at Lucene.Net.Index.IndexWriter.DeleteSegments(ArrayList segments)
at Lucene.Net.Index.IndexWriter.MergeSegments(Int32 minSegment, Int32 end)
at Lucene.Net.Index.IndexWriter.FlushRamSegments()
at Lucene.Net.Index.IndexWriter.Optimize()

问题是我们无法删除 lucene 创建的文件，因为有成千上万的文档需要再次发布才能重新创建索引。请提出解决方案和/或我们收到此错误的可能原因？

Analyzer analyzer = new StandardAnalyzer();
Lucene.Net.Store.Directory directory = FSDirectory.GetDirectory(lucenePath, false);

try
{
    IndexReader ir = IndexReader.Open(lucenePath);
    ir.DeleteDocuments(new Term("id", document.Lang + "-" + document.IDDoc));
    ir.Close();
}
catch (Exception) { }

IndexWriter iwriter;
try
{
    iwriter = new IndexWriter(directory, analyzer, false);
}
catch (Exception)
{
    iwriter = new IndexWriter(directory, analyzer, true);
}
iwriter.SetMaxFieldLength(25000);
Lucene.Net.Documents.Document doc = new Lucene.Net.Documents.Document();
doc.Add(new Lucene.Net.Documents.Field("content", fulltext, Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED));
doc.Add(new Lucene.Net.Documents.Field("title", document.DocName, Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.TOKENIZED));
doc.Add(new Lucene.Net.Documents.Field("id", document.Lang + "-" + document.IDDoc, Lucene.Net.Documents.Field.Store.YES, Lucene.Net.Documents.Field.Index.UN_TOKENIZED));
iwriter.AddDocument(doc);
iwriter.Optimize();
iwriter.Close();
directory.Close();
4

1 回答 1

0

我们也在使用 Lucene.net 2.0，并且遇到了与您的异常类似的异常（见下文）。我通过删除 Lucene 索引目录解决了这个问题，并再次重建了该目录。

我们的错误：

System.IO.IOException: read past EOF
   at Lucene.Net.Index.IndexWriter.Init(Directory d, Analyzer a, Boolean create, Boolean closeDir, IndexDeletionPolicy deletionPolicy, Boolean autoCommit, Int32 maxFieldLength, IndexingChain indexingChain, IndexCommit commit)
   at Lucene.Net.Index.IndexWriter..ctor(Directory d, Analyzer a, Boolean create, MaxFieldLength mfl)
于 2017-02-23T17:58:37.707 回答