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From "Armbrust, Daniel C." <>
Subject RE: Index space requirements
Date Tue, 29 Apr 2003 14:11:27 GMT
I believe optimization will take 2X your index size, as it has to rewrite out the entire index
into a new set of files.

It may not be quite 2X, but its pretty close in my observations.


-----Original Message-----
From: Harpreet S Walia [] 
Sent: Tuesday, April 29, 2003 7:29 AM
To: Lucene Users List
Subject: Index space requirements


I have a index which is about 4g.b in size . now if i opmimize this index it seems to take
extra space of abt. 2-3g.b during the optimization step. Once this is done the size again
comes down. 

What i would like to know is weather there is a basis on which i can calculate the amount
of space which would be required for optimizing a given index . 

Thanks and Regards

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