Re:Build RAMDirectory on FSDirectory, and then synchronzing the two

[dyzc]

I'd better provide a snapshot of my code for people to understand my issues:


File file=new File("c:/index_files");
FSDirectory fsDir=new FSDirectory(file);
RAMDirectory ramDir=new RAMDirectory(fsDir, new 
IndexWriterConfig(Version.LUCENE_35, new StandardAnalyzer());


IndexWriter iw = new IndexWriter(ramDir, iwc);


......DO something here with iw (associated with ramDir).....


Now I am trying to synchronize ramDir with fsDir:


//close iw prior to synchronization
iw.close();


// synchronize RAM with FS
IndexWriter writer = new IndexWriter(fsDir,     new 
IndexWriterConfig(Version.LUCENE_35, ik));
writer.addIndexes(ramDir);
writer.close();
ramDir.close();



Now I end up with duplicate copies of index files in c:/index_files


Is there something that I miss here?
 
 
------------------ Original ------------------
From:  "zhoucheng2008"<zhoucheng2...@gmail.com>;
Date:  Mon, Jan 9, 2012 12:04 PM
To:  "java-user"<java-user@lucene.apache.org>; 

Subject:  Build RAMDirectory on FSDirectory, and then synchronzing the two

 
Hi,

I new a RAMDirectory based upon a FSDirectory. After a few modifications, I 
would like to synchronize the two.


Some on the mailing list provided a solution that uses addIndex() function.
 

However, the FSDirectory simply combines with the RAMDirectory, and the size 
doubled.


How can I do a real synchronization?


Thanks