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From Erik Hatcher <e...@ehatchersolutions.com>
Subject Re: Highlighting question
Date Tue, 04 Aug 2009 00:34:50 GMT
Is default-search-field stored (as specified in schema.xml)?

	Erik


On Aug 3, 2009, at 8:05 PM, Stephen Green wrote:

> Hi, folks.  I'm trying to get a very simple example working with Solr
> highlighting.  I have a default search field (called, unsurprisingly
> "default-search-field") with text in it and I want query terms to be
> highlighted in that field when I do a search.
>
> I'm using an up to date (as of this evening) checkout of 1.4.  My
> solrconfig.xml contains the following highlighting element:
>
>    <highlighting>
>   <!-- Configure the standard fragmenter -->
>   <!-- This could most likely be commented out in the "default" case  
> -->
>        <fragmenter name="gap"
> class="org.apache.solr.highlight.GapFragmenter" default="true">
>            <lst name="defaults">
>                <int name="hl.fragsize">200</int>
>            </lst>
>        </fragmenter>
>
>   <!-- A regular-expression-based fragmenter (f.i., for sentence
> extraction) -->
>        <fragmenter name="regex"
> class="org.apache.solr.highlight.RegexFragmenter">
>            <lst name="defaults">
>      <!-- slightly smaller fragsizes work better because of slop -->
>                <int name="hl.fragsize">170</int>
>      <!-- allow 50% slop on fragment sizes -->
>                <float name="hl.regex.slop">0.5</float>
>      <!-- a basic sentence pattern -->
>                <str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</ 
> str>
>            </lst>
>        </fragmenter>
>
>   <!-- Configure the standard formatter -->
>        <formatter name="html"
> class="org.apache.solr.highlight.HtmlFormatter" default="true">
>            <lst name="defaults">
>                <str name="hl.simple.pre"><![CDATA[<span class="ht">]]>
>                </str>
>                <str name="hl.simple.post"><![CDATA[</span>]]>
>                </str>
>            </lst>
>        </formatter>
>    </highlighting>
>
> I'm using SolrJ to talk to the Solr server.  Here's the code to do a
> query, where qs is the query string.
>
>            SolrQuery q = new SolrQuery(qs);
>            q.setQueryType("dismax");
>            q.setHighlight(true);
>            q.setHighlightFragsize(250);
>            q.set("hl.formatter", "html");
>            q.set("hl.fragmenter", "regex");
>            q.setFields("default-search-field", "key");
>            QueryResponse resp = solr.query(q);
>
> I've set up the dismax handler in solrconfig.xml to search the
> default-search-field.
>
> The Solr server logs the following request for this:
>
> INFO: [] webapp=/solr path=/select
> params={hl.fragsize=250&fl=default-search- 
> field 
> ,key 
> &hl 
> .fragmenter 
> = 
> regex 
> &q=garbage&hl.formatter=html&qt=dismax&wt=javabin&hl=true&version=1}
> hits=953 status=0 QTime=39
>
> which looks about right to me, but I don't see any highlighting in  
> the results.
>
> I'm clearly missing something pretty fundamental here, and any help
> would be appreciated.
>
> Steve Green


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