This may seem like a stupid question, but why on the info / stats pages do we
see two instances on SolrIndexSearcher?

The reason I ask is that we've implemented SOLR-465 to try and serve our
index from a RAMDirectory, but it appears that our index is being loaded
into memory twice, as our JVM heap size requirements are > 2 x our index
size on disk

Does Solr actually create two instances of SolrCore / SolrIndexSearcher on
startup? If one is used for warming, why isn't it destroyed when it's
finished?

http://lucene.472066.n3.nabble.com/file/n1599373/Screen_shot_2010-09-28_at_4.40.19_PM.png
 
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