[21 Jul 2011 01:54:57,226] INFO com.interwoven.hunter.index.IndexServer (main) - Trying to bind to port 6715[21 Jul 2011 01:54:57,230] FATAL com.interwoven.hunter.index.IndexServer (main) - java.net.BindException: Address already in use
This is obviously the source of the problem. It's quite likely that your CLTs have gotten mixed up PIDs. Shutdown both search services, then check your running processes. I would expect to see an instance still running, and you'll have to kill the process manually before starting up the services again.