Comments on: Merging multiple Lucene indexes

By: Missy

Missy — Mon, 26 Dec 2011 11:31:02 +0000

Kindly can you tell me if it is possible to merge indexes of documents other then the .txt format i.e word,pdf e.t.c It will be a big favor on your part.

By: JTheRocker

JTheRocker — Tue, 25 Oct 2011 09:24:51 +0000

Hi,

This showing as depricated. Please update it if possible.

IndexWriter writer = new IndexWriter( INDEX_DIR,
new StandardAnalyzer(),
true,
IndexWriter.MaxFieldLength.UNLIMITED);

By: Govind

Govind — Wed, 11 May 2011 10:13:23 +0000

Hi
Asterios
I am working on distributed indexing
It really worked
It helped me alot
Really I am very thankful.

By: kaka

kaka — Mon, 19 Jul 2010 04:21:08 +0000

Hi,
Will this work for solr indexes?? Since they are compatible it has to work, but in my case it is giving corrupt index exception..

By: JOAN RICE

JOAN RICE — Tue, 01 Jun 2010 01:32:09 +0000

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By: tim

tim — Tue, 25 May 2010 14:16:51 +0000

Hi there, many thanks. This helped very well! IndexModifier is deprecated and lacked performance, so this is a very good alternative to work with…

By: Asterios Katsifodimos

Asterios Katsifodimos — Tue, 23 Feb 2010 13:04:30 +0000

Cool, thanks a lot Javier! I will try to run it myself and post the updated code!

By: Javier Teso

Javier Teso — Tue, 23 Feb 2010 03:42:28 +0000

Sorry the number of lines were missing…

LINE 55
IndexWriter writer = new IndexWriter( INDEX_DIR,
new StandardAnalyzer(),
true,
IndexWriter.MaxFieldLength.UNLIMITED);

LINE 65
indexes[i] = FSDirectory.open(new File(INDEXES_DIR.getAbsolutePath()+ “/” + INDEXES_DIR.list()[i]));

LINE 70
writer.addIndexesNoOptimize(indexes);

By: Javier Teso

Javier Teso — Tue, 23 Feb 2010 03:39:52 +0000

Yes, a few things have changed in lucene 3.0. You will have to replace the following lines:

IndexWriter writer = new IndexWriter( INDEX_DIR,
new StandardAnalyzer(),
true,
IndexWriter.MaxFieldLength.UNLIMITED);

indexes[i] = FSDirectory.open(new File(INDEXES_DIR.getAbsolutePath()+ “/” + INDEXES_DIR.list()[i]));

writer.addIndexesNoOptimize(indexes);

I think that is all, it works perfect, thanks for sharing your code!!

By: Asterios Katsifodimos

Asterios Katsifodimos — Thu, 31 Dec 2009 18:36:11 +0000

Hi, I think I used Lucene 2.9.1 and I suppose that its not compatible with Lucene 3.0. Try to see which part of the code is causing the problem and if you find it, please let me know!