title: How to design a SearchHandler in Solr
body: <p>I have designed a SearchHandler in Solr, but I don't know why the Rank and Shards does not work. Here is the config for the <code>requestHandler</code>:</p>
  
  <pre><code>&lt;requestHandler name="/contentsearch" class="solr.SearchHandler"&gt;
  &lt;lst name="defaults"&gt;
    &lt;str name="shards"&gt;localhost:8983/solr/Wiki,localhost:8983/solr/iShare,localhost:8983/solr/GRA,localhost:8983/solr/ACF&lt;/str&gt;
    &lt;str name="echoParams"&gt;explicit&lt;/str&gt;
    &lt;str name="wt"&gt;json&lt;/str&gt;
    &lt;str name="indent"&gt;true&lt;/str&gt;
  
    &lt;str name="defType"&gt;edismax&lt;/str&gt;
    &lt;str name="qf"&gt;
      title^100.0 content^80.0 text^60.0
    &lt;/str&gt;
    &lt;str name="q"&gt;*:*&lt;/str&gt;
    &lt;str name="indent"&gt;true&lt;/str&gt;
    &lt;str name="rows"&gt;10&lt;/str&gt;
  
    &lt;!-- Facet settings --&gt;
    &lt;str name="facet"&gt;on&lt;/str&gt;
    &lt;str name="facet.field"&gt;content_type&lt;/str&gt;
    &lt;str name="facet.field"&gt;category&lt;/str&gt;
    &lt;str name="facet.field"&gt;author&lt;/str&gt;
    &lt;str name="facet.field"&gt;editor&lt;/str&gt;
    &lt;str name="facet.field"&gt;source_type&lt;/str&gt;
  
    &lt;str name="hl"&gt;on&lt;/str&gt;
    &lt;str name="hl.fl"&gt;title content&lt;/str&gt;
  &lt;/lst&gt;    
  &lt;arr name="last-components"&gt;
    &lt;str&gt;elevator&lt;/str&gt;
  &lt;/arr&gt;&lt;/requestHandler&gt; 
  </code></pre>
  
  <p>The 4 core schemas are same. What am I missing?</p>