Mysql proxy startproblem

I have a problem with started mysql proxy

2011-06-06 11:11:52: (message) mysql-proxy 0.8.0 started
2011-06-06 11:11:52: (critical) chassis-limits.c:81: could not raise RLIMIT_NOFILE to 8192, Invalid argument (22). Current limit still 1024.
2011-06-06 11:11:52: (critical) network-socket.c:397: bind(192.168.10.52:3306) failed: Address already in use (98)
2011-06-06 11:11:52: (critical) chassis.c:947: Failure from chassis_mainloop. Shutting down.
2011-06-06 11:11:52: (message) Initiating shutdown, requested from chassis.c:949
2011-06-06 11:11:52: (message) shutting down normally, exit code is: 1
2011-06-06 11:11:52: (message) chassis.c:210: [angel] PID=11845 exited normally with exit-code = 1 (it used 1 kBytes max)
2011-06-06 11:11:52: (message) Initiating shutdown, requested from chassis.c:350
2011-06-06 11:11:52: (message) shutting down normally, exit code is: 1

i dont know why he sad that