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From Karl Wettin <>
Subject Re: How can we know if 2 lucene indexes are same?
Date Fri, 29 Aug 2008 09:43:50 GMT

29 aug 2008 kl. 11.35 skrev Noble Paul നോബിള്‍  

> hi,
> I wish to know if the contents of two indexes have same data.
> will all the files be exactly same if I put same set of documents to  
> both?

If you insert the documents in the same order with the same settings  
and both indices are optimized, then the files ought to be  
identitical. I'm however not sure.

The instantiated index contrib module contains a test that assert two  
index readers are identical. You could use this to be really sure, but  
it it a rather long running process for a large index:

Perhaps you should explain why you need to do this.

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