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From Doug Cutting <>
Subject Re: Opening up one large index takes 940M or memory?
Date Tue, 15 Feb 2005 19:57:14 GMT
Kevin A. Burton wrote:
> 1.  Do I have to do this with a NEW directory?  Our nightly index merger 
> uses an existing "target" index which I assume will re-use the same 
> settings as before?  I did this last night and it still seems to use the 
> same amount of memory.  Above you assert that I should use a new empty 
> directory and I'll try that tonight.

You need to re-write the entire index using a modified  Optimize rewrites the entire index but is 
destructive.  Merging into a new empty directory is a non-destructive 
way to do this.

> 2. This isn't destructive is it?  I mean I'll be able to move BACK to a 
> TermInfosWriter.indexInterval of 128 right?

Yes, you can go back if you re-optimize or re-merge again.

Also, there's no need to CC my personal email address.


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