Closest thing I found was /var/log/mysqld.log (I'm on a directadmin system)
061221 13:38:22 mysqld started
061221 13:38:22 [Warning] Asked for 196608 thread stack, but got 126976
061221 13:38:22 [ERROR] Can't start server: Bind on TCP/IP port: Address already in use
061221 13:38:22 [ERROR] Do you already have another mysqld server running on port: 3306 ?
061221 13:38:22 [ERROR] Aborting
If you can't connect to the mysql process from localhost it's likely just stalled. You'll need to kill the process manually. Use ps to get the process id and do a kill -9 (or try -TERM first) to it. When you start it up again you may want to perform a mysqlcheck on the databases to make sure everything is in order.
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