On May 21, 2006, at 10:56 PM, Zhenjian YU wrote:
I didn't dig the source code of lucence deep enough, but I noticed
that the
IndexSearcher uses an IndexReader, while the cost of initializing
IndexReader is a bit high.
The key is the IndexReader.
My application is a webapp, so I think it may be good if I cache some
instances of IndexSearcher to provide service for my webapp. I
haven't done
any performance testing yet. Maybe I test it later to see the
difference
between caching and without caching.
It is best to keep only a single IndexSearcher/IndexReader
combination around. There is no need to have more than one instance,
and in fact it is a waste of resources to do so.
Erik
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