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From "Praveen Peddi" <>
Subject merge factor and minMergeDocs
Date Fri, 23 Jul 2004 15:27:32 GMT
Is anything changed lucene 1.4 regarding mergefactor?
I recently ported to lucene 1.4 final and my indexing time doesnot change with change in the
merge factor. Increasing minMergeDocs is improving my indexing as expected but changing mergefactor
is making no difference.

If this is the case, I can always go with the default merge factor of 10 so I won't run into
too many files open problem. But just vary minMergeDocs to tune the indexing perf.

Currently I tested with 25K objects and the indexing time is almost the same with mergefactor
10 and mergefactor of 100 (kept minMergeDocs =100 in both cases). I am confident that my indexing
time used to vary with change in the merge factor before (with lucene 1.3 RC3 I think).

Praveen Peddi
Sr Software Engg, Context Media, Inc. 
Tel:  401.854.3475 
Fax:  401.861.3596 
Context Media- "The Leader in Enterprise Content Integration" 

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