anchor.diff:       -->
       <!--<mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler"/>-->
   
  -	  
  +
       <!--
         This option specifies which Lucene LockFactory implementation to use.
  -      
  +
         single = SingleInstanceLockFactory - suggested for a read-only index
                  or when there is no possibility of another process trying
                  to modify the index.
  
positive.code: 
    <!-- XSLT response writer transforms the XML output by any xslt file found
         in Solr's conf/xslt directory.  Changes to xslt files are checked for
         every xsltCacheLifetimeSeconds.  
     -->
    <queryResponseWriter name="xslt" class="org.apache.solr.request.XSLTResponseWriter">
      <int name="xsltCacheLifetimeSeconds">5</int>
  
negative.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>
  