32 GB server memory configuration, my. cnf Parameter Estimation

32 GB server memory configuration, my. the cnf parameter is estimated to be 32 GB memory, for mysql server configuration parameter changes, it is recommended that innodb_file_per_table = 1 open the independent tablespace back_log = 300 # back_log is the number of connections that the operating system can maintain in the listening queue max_connections = 8000 # number of simultaneous sessions allowed by the MySQL Service max_connect_errors = 30 # maximum number of errors allowed for each client connection table_cache = 4096 # number of tables opened by all threads open_files_limit = 10240max_allowed_packet = 32 M # size of each connection. dynamically increase the size of wait_timeout = 10 # specify the maximum connection time of a request sort_buffer_size = 16 M # The sort buffer is used to process the sort join_buffer_size = 16 M caused by order by and group by queues # this buffer is used to optimize full Union (full JOINs union without indexes ). query_cache_size = 128 M # The Query Buffer is often used to buffer SELECT results and will not be executed directly return results next time the same query transaction_isolation = REPEATABLE-READ # Set the default transaction isolation level thread_stack = 512 K # The heap size used by the thread. this capacity is reserved for each connection. log-bin = mysql-bin # enable the binary log function innodb_buffer_pool_size = 6G # InnoDB uses a buffer pool to store indexes and raw data on an independent database server, you can set this variable to 80% innodb_file_io_threads = 4 # Number of I/o threads used to synchronize IO operations innodb_thread_concurrency = 16 # Number of threads allowed in the InnoDb core innodb_log_buffer_size = 16 M # the buffer size used to buffer log data. innodb_log_file_size = 512 M size of each log file in the log group. innodb_log_files_in_group = 3 # Total number of files in the log group innodb_lock_wait_timeout = 120 # How long should an InnoDB Transaction wait for a lock to be approved before being rolled back;