Lucene.Net IndexWriter错误

Question

我注意到indexwriter在打开时会删除索引文件夹中的所有文件。当我跟踪代码时，我看到在indexwriter.close（）事件之后没有提交段文件。

这是一个错误吗？或者我需要配置indexwriter？（Lucene 3.03）

     public IndexWriter iw_global { get; set; }
            ...
            RAMDirectory idx = new RAMDirectory();
            IndexWriter iw = new IndexWriter(idx, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30), true, IndexWriter.MaxFieldLength.UNLIMITED);
            iw.UseCompoundFile = true;

            List<Document> docs = new List<Document>();

            #region Index Ekle
            foreach (var link in linkList)
            {
                Document docx = new Document();
                //docx.Add(new NumericField("id", Field.Store.YES, true).SetLongValue(link.id));
                docx.Add(new Field("id", link.id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));

                //docx.Add(new NumericField("index_tarih", Field.Store.YES, true).SetLongValue(link.index_tarih.Ticks));
                docx.Add(new Field("index_tarih", link.index_tarih.Ticks.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
                iw.AddDocument(docx);
            }
           iw.Commit();
           this.iw_global.AddIndexesNoOptimize(idx);
           .......
           iw.Dispose();
           idx.Dispose();

打开iw_global，

private void MasterIndexOpen()
        {
            DirectoryInfo dirAktif = new DirectoryInfo(Path.Combine(ConfigFile.ConfigsPaths["MasterIndex"], this.courrent_date.ToString("yyyy.MM.dd")));
            if (!dirAktif.Exists)
                dirAktif.Create();
            FileInfo LockFile = new FileInfo(Path.Combine(dirAktif.FullName,"write.lock"));
            if (LockFile.Exists)
                LockFile.Delete();
            Lucene.Net.Store.FSDirectory lcneFolder = Lucene.Net.Store.FSDirectory.Open(dirAktif);


            FileInfo fiAktifYes = new FileInfo(string.Format("{0}\\Yes.txt", dirAktif.FullName));

            this.iw_global = new IndexWriter(lcneFolder, new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30), !fiAktifYes.Exists, IndexWriter.MaxFieldLength.UNLIMITED);
            this.iw_global.Commit();
            this.iw_global.UseCompoundFile = true;

            if (!fiAktifYes.Exists)
                fiAktifYes.Create();
        }