Our Ubuntu server that runs SOLR for our public websites has been brought to a crawl after we had a process hang that runs every night (to update our SOLR index). One of our techs killed the process, and ever since then tomcat6 has been using up all 8 of our CPU cores. We've tried restarting the server multiple times, and deleting unnecessary records, but to no avail. Has anyone had any experience with this? Any suggestions?