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Posted to solr-user@lucene.apache.org by Michael Lissner <ml...@michaeljaylissner.com> on 2012/01/08 07:24:32 UTC

FastVectorHighlighter wiki corrections

I switched over to the FastVectorHighlighter, but I'm struggling with 
the highlighting wiki. For example, it took me a while to figure out 
that "Highlighter only" means that a parameter doesn't work for FVH.

Can somebody wise tell me if the following are valid corrections I can make:
  - fragSize=0 can be accomplished in FVH by creating a fragListBuilder 
in your config:
<fragListBuilder name="single" 
class="solr.highlight.SingleFragListBuilder"/>
    and then calling it with hl.fragListBuilder=single
  - fragListBuilder supports field level overrides (this isn't mentioned 
currently)
  - the wiki says that hl.useFastVectorHighlighter is defaulted to 
false. I read somewhere that FVH is True when the data has been indexed 
with termVectors, termPositions and termOffsets. Is that correct?

Thanks,

Mike

Re: FastVectorHighlighter wiki corrections

Posted by Koji Sekiguchi <ko...@r.email.ne.jp>.
Hi Mike,

(12/01/11 16:14), Michael Lissner wrote:
> - I need help with fragsize. The wiki says to set it to either 0 or a huge number to disable
> fragmenting. Which is it?

It is original Highlighter.

> - the wiki says that hl.useFastVectorHighlighter is defaulted to false. I read somewhere that FVH is
> True when the data has been indexed with termVectors, termPositions and termOffsets. Is that correct?

Not correct. To use FVH, you need to set to true hl.useFastVectorHighlighter parameter
at query time, and index the highlighting fields with termVectors, termPositions and termOffsets.

koji
-- 
http://www.rondhuit.com/en/

Re: FastVectorHighlighter wiki corrections

Posted by Michael Lissner <ml...@michaeljaylissner.com>.
Hi,

I didn't hear any responses here, so I went ahead and made a bunch of 
changes to the highlighting parameters wiki:
  - Highlighter is now known as Original Highlighter so it's more clear 
that Highlighter doesn't just refer to the highlighting utilities generally.
  - I need help with fragsize. The wiki says to set it to either 0 or a 
huge number to disable fragmenting. Which is it?
  - the wiki says that hl.useFastVectorHighlighter is defaulted to 
false. I read somewhere that FVH is True when the data has been indexed 
with termVectors, termPositions and termOffsets. Is that correct?

Thanks,

Mike


On 01/07/2012 10:24 PM, Michael Lissner wrote:
> I switched over to the FastVectorHighlighter, but I'm struggling with 
> the highlighting wiki. For example, it took me a while to figure out 
> that "Highlighter only" means that a parameter doesn't work for FVH.
>
> Can somebody wise tell me if the following are valid corrections I can 
> make:
>  - fragSize=0 can be accomplished in FVH by creating a fragListBuilder 
> in your config:
> <fragListBuilder name="single" 
> class="solr.highlight.SingleFragListBuilder"/>
>    and then calling it with hl.fragListBuilder=single
>  - fragListBuilder supports field level overrides (this isn't 
> mentioned currently)
>  - the wiki says that hl.useFastVectorHighlighter is defaulted to 
> false. I read somewhere that FVH is True when the data has been 
> indexed with termVectors, termPositions and termOffsets. Is that correct?
>
> Thanks,
>
> Mike