It could be related to NUMA. Check out this article about it which has some fixes that worked for me.
http://blog.jcole.us/2010/09/28/mysql-swap-insanity-and-the-numa-architecture/ -- View this message in context: http://lucene.472066.n3.nabble.com/Solr-4-3-1-memory-swapping-tp4126641p4127191.html Sent from the Solr - User mailing list archive at Nabble.com.
