Too many connection

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
symbolic-links=0
user=mysql
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
log_slow_queries = /var/log/mysql-slow.log
key_buffer_size = 6G
max_allowed_packet = 64M
net_buffer_length = 32K
thread_stack = 192K
thread_cache_size = 16M
thread_cache = 64
myisam-recover = BACKUP
max_connections = 80
thread_concurrency = 16
query_cache_type = 1
query_cache_size = 196M
query_cache_limit = 256M
wait_timeout = 20
interactive_timeout = 20
myisam_sort_buffer_size = 384M
join_buffer_size = 256M
read_buffer_size = 16M
sort_buffer_size = 16M
long_query_time = 10
table_cache = 700
max_heap_table_size = 512M
tmp_table_size = 512M
read_rnd_buffer_size = 8M
;log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 800M
binlog_cache_size = 128K
innodb_data_home_dir = /var/lib/mysql/
innodb_data_file_path = /ibdata1:1000M:autoextend
innodb_buffer_pool_size = 8G
innodb_flush_log_at_trx_commit = 0
innodb_log_buffer_size = 16M
innodb_lock_wait_timeout = 70
innodb_thread_concurrency = 48
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
key_buffer_size = 512M
max_allowed_packet = 64M
net_buffer_length = 32K
thread_stack = 192K
thread_cache_size = 4
thread_cache = 64
myisam-recover = BACKUP
max_connections = 60
thread_concurrency = 16
query_cache_type = 1
;query_cache_limit = 128M
query_cache_size = 32M
wait_timeout = 15
interactive_timeout = 15
myisam_sort_buffer_size = 384M
join_buffer_size = 16M
read_buffer_size = 16M
sort_buffer_size = 64M
long_query_time = 10
table_cache = 7048
max_heap_table_size = 512M
tmp_table_size = 512M
read_rnd_buffer_size = 16M
log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 800M
binlog_cache_size = 128K
innodb_data_home_dir = /var/lib/mysql/
innodb_data_file_path = /ibdata1:1000M:autoextend
innodb_buffer_pool_size = 3G
innodb_flush_log_at_trx_commit = 0
innodb_log_buffer_size = 16M
innodb_lock_wait_timeout = 70
innodb_thread_concurrency = 48
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
[mysql]
[isamchk]
key_buffer = 160M