Hello all,

This debate we might have had more frequently in the group. Yet one more time, 
i want to clarify.

I was using multiple indexes (per week one index) with previous versions of 
Lucene (2.4 - 3.0.3). The performance was really good for incremental indexing. 
I used to optimize once per day. The only disadvantage is, when data get piled 
up to 1 year and when i try to reindex, it is throwing too many open files 
exception. 

I have seen couple of comments in the group to use Single Index / per machine 
and not use multiple index. The suggesstion is, not to use optimize for large 
index. This works fine. I am able to index more than 58 million records. The 
search performance is really good but index performance is little slow then in 
my previous model. 

Previously, I have choosen multiple indexes model beacause i need to do 
optimize and it was failing for the large index. I thought to break in to 
multiple small index with same schema. Now optimization is discourged and the 
name has been changed to forceMerge to discourge its use. 

I just want to confirm, Is Single Index would be good for millions of records? 

Regards
Ganesh 


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