Re: Some solrconfig.xml attributes being ignored

Tue, 16 Dec 2008 01:52:06 -0800 

Mark,

Looked at the code to discern this...
A fragmenter isn't responsible for the number of snippets - the higher level SolrHighlighter is the component that uses that parameter. So yes, it must be specified at the request handler level, not the fragmenter configuration. 

        Erik

On Dec 15, 2008, at 7:35 PM, Mark Ferguson wrote:
It seems like maybe the fragmenter parameters just don't get displayed with echoParams=all set. It may only display as far as the request handler's 
parameters. The reason I think this is because I tried increasing
hl.fragsize to 1000 and the results were returned correctly (much larger 
snippets), so I know it was read correctly.

I moved hl.snippets into the requestHandler config instead of the
fragmenter, and this seems to have solved the problem. However, I'm uneasy with this solution because I don't know why it wasn't being read correctly 
when setting it inside the fragmenter.

Mark
On Mon, Dec 15, 2008 at 5:08 PM, Mark Ferguson <mark.a.fergu...@gmail.com >wrote:
Thanks for this tip, it's very helpful. Indeed, it looks like none of the highlighting parameters are being included. It's using the correct request handler and hl is set to true, but none of the highlighting parameters from 
solrconfig.xml are in the parameter list.

Here is my query:


http://localhost:8080/solr1/select?rows=50&hl=true&fl=url,urlmd5,page_title,score&echoParams=all&q=java

Here are the settings for the request handler and the highlighter:
<requestHandler name="dismax" class="solr.SearchHandler" default="true"> 
 <lst name="defaults">
  <str name="defType">dismax</str>
  <float name="tie">0.01</float>
  <str name="qf">body_text^1.0 page_title^1.6 meta_desc^1.3</str>
  <str name="q.alt">*:*</str>
  <str name="hl.fl">body_text page_title meta_desc</str>
  <str name="f.page_title.hl.fragsize">0</str>
  <str name="f.meta_desc.hl.fragsize">0</str>
  <str name="hl.fragmenter">regex</str>
 </lst>
</requestHandler>

<highlighting>
 <fragmenter name="regex"
class="org.apache.solr.highlight.RegexFragmenter" default="true">
   <lst name="defaults">
     <str name="hl.snippets">3</str>
     <str name="hl.fragsize">100</str>
     <str name="hl.regex.slop">0.5</str>
     <str name="hl.regex.pattern">\w[-\w ,/\n\"']{50,150}</str>
   </lst>
 </fragmenter>
</highlighting>

And here is the param list returned to me:

<lst name="params">
<str name="echoParams">all</str>
<str name="tie">0.01</str>
<str name="hl.fragmenter">regex</str>
<str name="f.page_title.hl.fragsize">0</str>
<str name="qf">body_text^1.0 page_title^1.6 meta_desc^1.3</str>
<str name="f.meta_desc.hl.fragsize">0</str>
<str name="q.alt">*:*</str>
<str name="hl.fl">page_title,body_text</str>
<str name="defType">dismax</str>
<str name="echoParams">all</str>
<str name="fl">url,urlmd5,page_title,score</str>
<str name="q">java</str>
<str name="hl">true</str>
<str name="rows">50</str>
</lst>
So it seems like everything is working except for the highlighter. I should 
mention that when I enter a bogus fragmenter as a parameter (e.g.
hl.fragmenter=bogus), it returns a 400 error that the fragmenter cannot be found, so the config file _is_ finding the regex fragmenter. It just doesn't seem to actually be including its parameters... Any ideas are appreciated, 
thanks again for the help.

Mark
On Mon, Dec 15, 2008 at 4:23 PM, Yonik Seeley <ysee...@gmail.com> wrote:
Try adding echoParams=all to your query to verify the params that the 
solr request handler is getting.

-Yonik

On Mon, Dec 15, 2008 at 6:10 PM, Mark Ferguson
<mark.a.fergu...@gmail.com> wrote:

Hello,
In my solrconfig.xml file I am setting the attribute hl.snippets to 3. 
When

I perform a search, it returns only a single snippet for each

highlighted
field. However, when I set the hl.snippets field manually as a search parameter, I get up to 3 highlighted snippets. This is the configuration 
that I am using to set the highlighted parameters:

<fragmenter name="regex"

class="org.apache.solr.highlight.RegexFragmenter"

default="true">
  <lst name="defaults">
    <str name="hl.snippets">3</str>
    <str name="hl.fragsize">100</str>
    <str name="hl.regex.slop">0.5</str>
    <str name="hl.regex.pattern">\w[-\w ,/\n\"']{50,150}</str>
  </lst>
</fragmenter>
I tried setting hl.fragmenter=regex as a parameter as well, to be sure 
that
it was using the correct one, and the result set is the same. Any ideas 
what
could be causing this attribute not to be read? It has me concerned that 
other attributes are being ignored as well.

Thanks,

Mark Ferguson

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