Hello everyone,
I'm having tons of fun right now with Lucene indexing a large (15
millions documents) library. I'm developing the web front end, and I
read on this mailing list that it's better to have one instance of
IndexSearcher.
I'm using Lucene in PHP via JavaBridge (and Tomcat), but I can't figure
out how to instantiate an unique copy of IndexSearcher, somehow get it
in my webpage for each thread, and destroy it before I add stuff to the
index (at the end of each day).
I'm trying to follow these instructions, but I have zero experience with
Java, JVMs, Tomcat, etc. Could somebody help me with this one? Thanks in
advance!
Instructions:
I commend you for giving all the information that's relevant. For the sake
of simplicity, and because it is the vast majority of use cases, could you
endorse the following as the simplest, most correct way (i.e. a best
practice) to implement Lucene for Web applications.
1- create an IndexSearcher instance in the servlet's init() method, and
cache it in the web application context,
2- in the doGet or doPost() methods, lookup the index searcher instance in
the web application context and use it to run queries,
3- close the IndexSearcher in the destroy() method.
This is *simple*, and *correct*. It doesn't create a new IndexSearcher per
query, doesn't use a static field, nor a singleton, nor a pool. All ideas
that have been suggested but have issues, or are more difficult to
implement.
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