: 1) INFO: PERFORMANCE WARNING: Overlapping onDeckSearchers=2 There's a FAQ on this... http://wiki.apache.org/solr/FAQ#head-1133543d05c65f889b25b85b3c7aaa17f532032a
...additional info can be found by searching the list archives for "PERFORMANCE WARNING" : 2) SEVERE: org.apache.solr.common.SolrException: Error opening new searcher. : exceeded limit of maxWarmingSearchers=4, try again later. : : My instinct says that this one is related to the first one but i'm not sure. correct, the example solrconfig.xml has a bit more explanation about this. : 3) WARNING: Could not getStatistics on info bean org.apache.solr.search.SolrIndexSearcher : org.apache.lucene.store.AlreadyClosedException: this IndexReader is closed : : Does this indicate there is a race condition between the info beans and the : closing of searchers? this one i'm not aware of ... it should include a full stack trace, can you please post that? (I suspect you're correct, in which case it's not a huge problem, but it would be nice to double check that there's not a bug somewhere) -Hoss
