From the day Solr 3.4 was released its users got a nice feature which allows if the results of a filter query or query should be placed in cache. In addition to that we got the possibility to set filter query cost. Let’s see how to use those features.
Solr
Simple photo search
Recently we had a change to help with a non-commercial project which included search as its part. One of the assumptions, although not the key ones, was the photo search functionality, so that the user could find the pictures fast and accurately. Because the search had to work with meta data of JPEG files, the idea was simple – use Apache Solr with Apache Tika.
What can we use Dismax tie parameter for?
Dismax query parser have been with Solr for a long time. Most of the time we use parameters like qf, pf or mm forgetting about a very useful parameter which allows us to control how the lower scoring fields are treated – about the tie parameter.
Document language identification
Solr 4.0: Realtime GET
The next functionality I decided to look at, from the upcoming Solr 4.0, is the so called “Realtime Get”. It allows you to see the data even though it was not yet added to the index, thus before the commit operation being sent to Solr. Let’s see how it works.
Do I have to look for maxBooleanClauses when using filters ?
One of the configuration variables we can find in the solrconfig.xml file is maxBooleanClauses, which specifies the maximum number of boolean clauses that can be combined in a single query. The question is, do I have to worry about it when using filters in Solr ? Let’s try to answer that question without getting into Lucene and Solr source code.
Solr 4.0: DocTransformers first look
In todays entry we will look at the next feature that will come with version 4.0 of Apache Solr. We will look at the functionality which enables us to modify the fields in Solr result list.
Apache Lucene and Solr 3.5
Solr 4.0: new fl parameter functionalities – first look
In connection with the work of slowly upcoming release of Apache Solr version 4.0 I thought that it is time to bring some light on the functionalities that you will get into your own hands with the release of Apache Solr 4.0. The first change we will look at is a simple, but albeit useful functionality called pseudo fields, together with additional features related to the fl parameter.
Lucene Eurocon 2011 – day one
As we wrote a few days ago we are back from this year Lucene Eurocon, which took place in Barcelona. Despite the fact that the videos will be available shortly, we decided to wrote something about those presentations we attended to.