Jan Høydahl / Cominvent wrote:
Did you solve this?
If yes, what was wrong?
If no, can you specify one concrete example document and a matching query which
fails to highlight?
--
Jan Høydahl - search architect
Cominvent AS - www.cominvent.com
On 7. jan. 2010, at 15.23, Xavier Schepler wrote:
Erick Erickson a écrit :
It's really hard to provide any response with so little information,
could you show us the difference between a field that works
and one that doesn't? Especially the relevant schema.xml entries
and the query that fails to highlight....
Erick
On Thu, Jan 7, 2010 at 7:47 AM, Xavier Schepler <
xavier.schep...@sciences-po.fr> wrote:
Hi,
I'm trying to highlight short text values. The field they came from has a
type shared with other fields. I have highlighting working on other fields
but not on this one.
Why ?
Thanks for your response.
Here are some extracts from my schema.xml :
<fieldtype name="textFr" class="solr.TextField">
<analyzer>
<!-- suppression des mots vides de sens -->
<filter class="solr.StopFilterFactory" words="french-stopwords.txt"
ignoreCase="true"/>
<!-- decoupage en jetons -->
<tokenizer class="solr.StandardTokenizerFactory"/>
<!-- suppression des accents -->
<filter class="solr.ISOLatin1AccentFilterFactory"/>
<!-- suppression des points a la fin des accronymes -->
<filter class="solr.StandardFilterFactory"/>
<!-- passage en miniscules -->
<filter class="solr.LowerCaseFilterFactory"/>
<!-- lexemisation avec le filtre porter -->
<filter class="solr.SnowballPorterFilterFactory" language="French"/>
<!-- synonymes -->
<filter class="solr.SynonymFilterFactory" synonyms="test-synonyms.txt"
ignoreCase="true" expand="true"/>
</analyzer>
</fieldtype>
Here's a field on which highlighting works :
<field name="questionsLabelsFr"
required="false"
type="textFr"
multiValued="true"
indexed="true"
stored="true"
compressed="false"
omitNorms="false"
termVectors="true"
termPositions="true"
termOffsets="true"
/>
Here's the field on which it doesn't :
<field name="modalitiesLabelsFr"
required="false"
type="textFr"
multiValued="true"
indexed="true"
stored="true"
compressed="false"
omitNorms="false"
termVectors="true"
termPositions="true"
termOffsets="true"
/>
They are kinda the same.
But modalitiesLabelFr contains mostly short strings like :
Côtes-d Armor
Creuse
Dordogne
Doubs
Drôme
Eure
Eure-et-Loir
Finistère
When matches are found in them, I get a list like this, with no text :
<lst name="highlighting">
<lst name="dbbd3642-db1d-4b35-9280-11582523903d"/>
....
<lst name="f1d8be2d-1070-4111-b16e-94d16c8c0bc6"/>
</lst>
The name attribute is the uid of the document.
I tryed several values for hl.fragsize (0, 1, 2, ...) with no success at all.
If you are using trunk version, because those fields'
termVectors/termPositions/termOffsets are all on, DefaultSolrHighlighter
uses FastVectorHighlighter unless you set hl.useHighlighter to true
explicitly.
And FVH doesn't support dismax at the moment. It has been fixed in
Lucene trunk:
https://issues.apache.org/jira/browse/LUCENE-2243
If you want to use the fix, download Lucene trunk, execute ant
build-contrib,
cp lucene-fast-vector-highlighter-3.1-dev.jar to solr/lib and delete old
FVH jar in solr/lib.
Koji
--
http://www.rondhuit.com/en/
