anchor.diff:           Instead of enabling autoCommit, consider using "commitWithin"
            when adding documents. http://wiki.apache.org/solr/UpdateXmlMessages
       -->
  -    <autoCommit> 
  +    <autoCommit>
         <maxDocs><%= @max_commit_docs %></maxDocs>
         <maxTime><%= @commit_interval %></maxTime>
       </autoCommit>
  
positive.code: 
    <!--
     Search components are registered to SolrCore and used by Search Handlers
     
     By default, the following components are avaliable:
      
     <searchComponent name="query"     class="org.apache.solr.handler.component.QueryComponent" />
     <searchComponent name="facet"     class="org.apache.solr.handler.component.FacetComponent" />
     <searchComponent name="mlt"       class="org.apache.solr.handler.component.MoreLikeThisComponent" />
     <searchComponent name="highlight" class="org.apache.solr.handler.component.HighlightComponent" />
     <searchComponent name="stats"     class="org.apache.solr.handler.component.StatsComponent" />
     <searchComponent name="debug"     class="org.apache.solr.handler.component.DebugComponent" />
     
     Default configuration in a requestHandler would look like:
      <arr name="components">
        <str>query</str>
  
negative.code: 
    <query>
      <!-- Maximum number of clauses in a boolean query... in the past, this affected
          range or prefix queries that expanded to big boolean queries - built in Solr
          query parsers no longer create queries with this limitation.
          An exception is thrown if exceeded.  -->
      <maxBooleanClauses>1024</maxBooleanClauses>
  
  