Re: Why Lucene takes longer time for the first query and less for subsequent ones

Hi, Thanks for your feedbacks. I have checked it again and found that this behavior is rather consistent. So may be OS cache and Lucene warm up have big impact. Regards, Dinh

Re: Why Lucene takes longer time for the first query and less for subsequent ones

The "usual" recommendation is just to fire up a series of warmup queries at startup if you really require the first queries to be fast. Best Erick On Tue, Nov 17, 2009 at 2:43 PM, Scott Ribe wrote: > > Most likely due to the operating system caching the relevant portions of > the > > index after

Re: Why Lucene takes longer time for the first query and less for subsequent ones

> Most likely due to the operating system caching the relevant portions of the > index after the first set of queries. I have enough RAM to keep the Lucene indexes in memory all the time, so I "dd ... > /dev/null" the files at boot. And also perform a single query to force JIT of the query code. T

Re: Why Lucene takes longer time for the first query and less for subsequent ones

Hello, Most likely due to the operating system caching the relevant portions of the index after the first set of queries. Otis -- Sematext is hiring -- http://sematext.com/about/jobs.html?mls Lucene, Solr, Nutch, Katta, Hadoop, HBase, UIMA, NLP, NER, IR - Original Message > From: Din