I'm trying to separate magento back end and front end in 2 nodes. I follow the HOW-TO on magento site. Now I have two installation of magento that work properly. My problem comes when magento start reindex process. It doesn't stop, it's in pending state since friday (5 days). I try to stop it by removing all locks file in /var/locks folder and restarting apache, but nothing has changed. Now I can't restart it because magento throw me an exception because reindex is in progress and I can't install any extension.
How can I restore the state of reindex process?