Hi, We run a search engine based on Lucene 1.9.1 / Nutch 0.7.2. Our index has approximately 2 million documents and the physical size of it is about 10 GB. We run it as a tomcat web application on a Fedora Core 4 server with duo Xeon 3.2GHz processors and 4GB RAM.
We receive about 46500 web search requests a day (ranging from 50-300 requests per 5 minutes across the day). Each web search request could spawn about one to three actual Lucene searches. Our average response time (calculated from the server side - and so excludes network latency), is about 2 seconds. Does this timing of 2 seconds appear plausible for Lucene, based on the machine specifications above. Our index is slightly more complex (with multiple fields like title, location, site, content). For example, a search for "Linux and Lucene" related entries in "Australia" might result in lucene searches for: ((title:linux^1.0 title:lucene^1.0)^4.0) +(( +(title:linux^5.0 location:linux^1.5 content:linux^1.0) +(title:lucene^5.0 location:lucene^1.5 content:lucene^1.0)) ((+(+content:linux +content:lucene)) +(site:contentsite1 site:contentsite2 site:contentsite3 site:contentsite4 site:contentsite5 site:contentsite6 site:contentsite7)))^0.01)) +location:australia) +newsdate:[20061107 TO 20061208] +region:au) -jobsite:badsite1 -region:badregion1 -jobsite:badsite2 -jobsite:badsite3 -jobsite:badsite4 Does anyone have ideas or could point us to resources that would allow us to improve this performance? 2 seconds response added with network latency gives an impression of "slowness" of our site that we are trying to reduce. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
