MYSQL 连接数过多造成挂掉

MYSQL 配置文件 写道 user = mysql port = 3306 socket = /tmp/mysql.sock basedir = /usr/local/mysql datadir = /usr/local/mysql/data open_files_limit = 3072 back_log = 200 max_connections = 600 max_connect_errors = 512 table_cache = 307 external-locking = FALSE #max_allowed_packet = 512M sort_buffer_size = 2M join_buffer_size = 2M thread_cache_size = 26 thread_concurrency = 8 query_cache_size = 512M query_cache_limit = 2M #query_cache_min_res_unit = 2k default_table_type = MyISAM thread_stack = 192K transaction_isolation = READ-COMMITTED tmp_table_size = 61M max_heap_table_size = 61M #/usr/local/mysql/data/slow.log #/usr/local/mysql/data/error.log #long_query_time = 1 #log-slow-queries = /web/mysql-slow.log log_long_format server-id = 1 log-bin = /usr/local/mysql/data/binlog binlog_cache_size = 4M max_binlog_cache_size = 8M max_binlog_size = 512M #expire_logs_days = 3 key_buffer_size = 1024M read_buffer_size = 4M read_rnd_buffer_size = 16M bulk_insert_buffer_size = 64M myisam_sort_buffer_size = 512M myisam_max_sort_file_size = 10G myisam_max_extra_sort_file_size = 10G myisam_repair_threads = 1 myisam_recover wait-timeout = 150 interactive-timeout = 250 skip-locking skip-name-resolve 我的myslq设置