Hi all:
*I was recently used solr to set up a Search Engine for our web site.
In the process of performance test, I used jprofiler to analyse the
operational aspect of solr , And found a optimizable point, in the method
getLuceneVersion(String path, Version def) of class
org.apache.solr.core.config. In this method,it will parse the config file
with xml format each time when be invoked.*
*it is terrible,look this:*
*
*
http://dl.iteye.com/upload/picture/pic/89884/00ff1ee5-a156-354d-8eaa-35abdcd1cfa6.jpg
http://dl.iteye.com/upload/picture/pic/89884/00ff1ee5-a156-354d-8eaa-35abdcd1cfa6.jpg
*15.1%+14.2%, it cost 29.3% cpu resource,only a be of little use method. *
*So I suggest to edit this method like this:*
------------------------------------------------------------------------
*public* Version getLuceneVersion(String path) {
*if*(luceneVersion == *null*){
luceneVersion = *parseLuceneVersionString*(getVal(path, *true*));
}
*return* luceneVersion;
}
------------------------------------------------------------------------
*Only run parseLuceneVersionString() method at this first time to save the
valuable and limited cpu resource.*
* *
*Any problem and what do you think?*
Best regards.
**
