Hi Grant, Thanks for the answer - it wasn't a question of patient just accidentally sent the same message more than once... Sorry for that.
Anyway, I'm checking right now the option to hold the metrics in in-memory array (for all docs) and retrieve the metrics for that array rather than from Lucene. It looks pretty the same as using the FieldCache - but I'll try it as well. I'll let you know the results, Thanks again, Ophir On Wed, Feb 2, 2011 at 6:07 PM, Grant Ingersoll <gsing...@apache.org> wrote: > > On Feb 1, 2011, at 2:59 AM, Ophir Cohen wrote: > > > Hi Guys, > > > > I've been using Lucene for more than 5 years and it is a great tool - > great job! Thanks for everything... > > Thanks. > > Just so you know going forward, please be patient in expecting answers, > especially for complex questions like this that involve fairly expert usages > of Lucene. From what I can tell, you have sent the same question 3 times in > a matter of less than a day. Sending more than once in a 2-3 day period is > just going to make it less likely that you will get help, not more likely. > > Some suggestions inline below. > > > > > > > Lately I encountered the new payloads support and it looks its a great > solution for my project. > > > > > > *The problem:* > > > > The use case is as follows: > > > > I need to support a way to calculate statistics on web pages. > > > > Each page has few metrics that comes with it (how many user saw it, what > was the average time on page etc...). > > > > > > The requirement is to support query such as: > > > > How many users saw pages contains the tokens 'house' and 'white'. > > > > Or > > > > What was the average time on pages contains tokens 'horse' and 'pony'. > > > > > > *First solution:* > > > > Add pages to Lucene, index the words and store the metrics. > > > > *The problem: performance.* > > > > Not as regular search, I need to provide results for all matched > documents and those I need to iterate on all results and load the document > data. > > This method take to much time. > > > > > > *Better solution:* > > > > Store the metrics as payloads and calculate the needed data without > access to the storage - a huge performance boost. > > > > I think the better solution is to use the first approach, but to use the > FieldCache on your metrics instead of stored documents and combine that w/ a > custom Collector. > > -------------------------- > Grant Ingersoll > http://www.lucidimagination.com/ > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > <http://www.google.com/search?q=accedentily%20>
