How do I get Solr back up when indexes are locked and true doesn't work?

Question

I have a Solr slave that is running in Tomcat. I added a core, so I changed solr.xml. To reload it I decided to simply restart Tomcat using the Windows Services managament conso

Answer 1

In case the other answers don't work, check your file permissions. In my case, I had to do a

chown -R tomcat6:tomcat6 /opt/solr/corename