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From Grant Ingersoll <gsing...@apache.org>
Subject Re: merge Index
Date Fri, 08 Aug 2008 02:27:06 GMT
Lucene does this RAM/FS stuff seamlessly for you in the background.   
Just open the FSDirectory and do your indexing.  If I had to guess,  
though, from a quick glance, I think you should do the addIndexes  
after the ramWriter close, but that's just a guess, as I haven't tried  
it.

-Grant

On Aug 7, 2008, at 10:12 PM, 장용석 wrote:

> hi,
> I am using RamDirectory and FSDirectory for indexing documents.
> I use RamDirectory as Buffer.
>
> For example,
> -----------------------------------
> String indexDir = "d:/lucene_data/merge_test_index";
> Analyzer analyzer  = new StopAnalyzer();
>
> RAMDirectory ramDir    = new RAMDirectory();
> IndexWriter  ramWriter = new IndexWriter(ramDir, analyzer, true);
>
> for (int i = 0; i < 10000; i++) {
>           Document doc = new Document();
>           doc.add(new Field("id", "test id"+i, Field.Store.YES,
> Field.Index.TOKENIZED, Field.TermVector.WITH_POSITIONS_OFFSETS));
>            writer.addDocument(doc);
> }
>
>
> IndexWriter fsWriter   = new IndexWriter(indexDir, analyzer, true);
> fsWriter.addIndexes(new Directory[] { ramDir });
> ramWriter.close();
> fsWriter.close();
> ------------------------------------
>
> I know IndexWriter.addIndexes(Directory[] dir) method can merge other
> indexes.
>
> But, when I execute my program, just 2 files are created in index  
> directory.
> (segments.gen and segments_4)
> And when I open with LUKE the index then meet error , It's bad index  
> file.
>
> What's wrong about that code..?
> It's almost same as sample source code on book. I can't find any  
> reason.
>
> Please let me know what is wrong.
>
> Thank you.
>
>
> -- 
> DEV용식
> http://devyongsik.tistory.com



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