support for and Why remove dismax handler remove in solr 4.3

[Viresh Modi <vi...@highq.com>]

i checked solrconfig.xml in solr 4.3 and solr 1.4
In both i have checked

*Solr 1.4::*
<requestHandler name="dismax" class="solr.SearchHandler"  default="true">
<requestHandler name="standard" class="solr.SearchHandler">
*Solr 4.3::*
<requestHandler name="/select" class="solr.SearchHandler">


so how to handle dismax query type(qt) in solr 4.3
in solr 1.4.1 we have used qt=dismax
but solr 4.3 there is no such configuration.


so both give different result.
-- 

Regards,
Viresh Modi

Re: support for and Why remove dismax handler remove in solr 4.3

[Ahmet Arslan <io...@yahoo.com>]

Hi Viresh,

defType=dismax should do the trick. By the way, example solrconfig.xml has an example of edismax query parser usage.



On Thursday, January 23, 2014 2:34 PM, Viresh Modi <vi...@highq.com> wrote:
i checked solrconfig.xml in solr 4.3 and solr 1.4
In both i have checked

*Solr 1.4::*
<requestHandler name="dismax" class="solr.SearchHandler"  default="true">
<requestHandler name="standard" class="solr.SearchHandler">
*Solr 4.3::*
<requestHandler name="/select" class="solr.SearchHandler">


so how to handle dismax query type(qt) in solr 4.3
in solr 1.4.1 we have used qt=dismax
but solr 4.3 there is no such configuration.


so both give different result.
-- 

Regards,
Viresh Modi

Re: support for and Why remove dismax handler remove in solr 4.3

[Shawn Heisey <so...@elyograg.org>]

On 1/23/2014 5:33 AM, Viresh Modi wrote:
> i checked solrconfig.xml in solr 4.3 and solr 1.4
> In both i have checked
> 
> *Solr 1.4::*
> <requestHandler name="dismax" class="solr.SearchHandler"  default="true">
> <requestHandler name="standard" class="solr.SearchHandler">
> *Solr 4.3::*
> <requestHandler name="/select" class="solr.SearchHandler">
> 
> 
> so how to handle dismax query type(qt) in solr 4.3
> in solr 1.4.1 we have used qt=dismax
> but solr 4.3 there is no such configuration.

Ahmet's reply is good information.  Here's a little more.

Only the dismax *handler* has been removed from Solr.  The dismax query
parser is alive and well.  There is also the edismax query parser, which
is probably what you should be using.  You can set defType to dismax or
edismax in the defaults section of any handler, or you can send the
parameter with the query.

A rather important change was also made to handler names.  It is highly
recommended that you name them starting with a forward slash.  For
example, if you make a handler named "/foo" then you can simply use a
URL like this:

http://server:port/solr/corename/foo?q=test

This is why the example's main handler is now named "/select" instead of
"standard" as it was in older versions.  The SolrJ library now includes
a method for setting the request handler:

http://lucene.apache.org/solr/4_6_0/solr-solrj/org/apache/solr/client/solrj/SolrQuery.html#setRequestHandler%28java.lang.String%29

Switching handlers with the "qt" parameter is now deprecated.  It is
still supported if you set handleSelect="true" on the requestDispatcher
config element, but it's likely this capability will disappear in Solr 5.0.

https://cwiki.apache.org/confluence/display/solr/RequestDispatcher+in+SolrConfig

Thanks,
Shawn