Apache Solr Basic Performance Tuning

For an interesting opinion on Solr implementations search for ‘The Seven Deadly Sins of Solr’.

Quick kill basic Solr cache tuning parameters for an operational instance of apachesolr-3.6.2 in ‘solr/conf/solrconfig.xml’ could be as follows:

 <filterCache class="solr.FastLRUCache"
 size="16384"
 initialSize="4096"
 autowarmCount="4096"/>

 <queryResultCache class="solr.LRUCache"
 size="16384"
 initialSize="4096"
 autowarmCount="4096"/>

 <documentCache class="solr.LRUCache"
 size="16384"
 initialSize="4096"
 autowarmCount="4096"/>

Sources:

http://wiki.apache.org/solr/SolrCaching
http://e-mats.org/2009/06/how-to-make-solr-go-45-faster/
http://h3x.no/2011/05/10/guide-solr-performance-tuning