1 Enterprise Search and Solr framework

Paper: Enterprise Search with Development for Network Management System

2 Top 10 performance tips apache solr

http://myjeeva.com/top-10-performance-tips-apache-solr.html

3 Add UUID field on indexing

http://wiki.apache.org/solr/UniqueKey

in the schema.xml

<fields>
    <field name="uuid" type="uuid" indexed="true" stored="true" required="true" />
</fields>

<uniqueKey>uuid</uniqueKey>

<types>
    <fieldType name="uuid" class="solr.UUIDField" indexed="true" />
</types>

in the Solrconfig.xml

updateRequestProcessorChain allows you to configure a processing chain that processes a document before indexing

<requestHandler name="/dataimport"  class="org.apache.solr.handler.dataimport.DataImportHandler">  
    .........
    <lst name="defaults">
        <str name="config">data-config.xml</str>
        <str name="update.chain">uuid</str>
    </lst>
</requestHandler>

<updateRequestProcessorChain name="uuid">
  <processor class="solr.UUIDUpdateProcessorFactory">
      <str name="fieldName">uuid</str>
  </processor>
  <processor class="solr.RunUpdateProcessorFactory" />
</updateRequestProcessorChain>