I am running Solr4.0/Tomcat 7 on Centos6 According to this page http://wiki.apache.org/solr/SolrConfigXml if <dataDir> is not absolute, then it is relative to the instanceDir of the SolrCore.
However the index directory is always created under the directory where I start the Tomcat (startup.sh) rather than under instanceDir of the SolrCore. Am I doing something wrong in configuration? Regards, Patrick