# Example MySQL config file for very large systems. # # This is for a large system with memory of 1G-2G where the system runs mainly # MySQL. # # MySQL programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, see: # http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # The following options will be passed to all MySQL clients [client] default-character-set=utf8 #password = your_password port = 3306 socket = MySQL # Here follows entries for some specific programs # The MySQL server [mysqld] default-character-set=utf8 basedir="E:/soft/mysql/" datadir="E:/soft/mysql/data/" default-storage-engine = MYISAM port = 3306 socket = MySQL skip-locking key_buffer_size = 384M max_allowed_packet = 32M table_open_cache = 512 sort_buffer_size = 4M read_buffer_size = 2M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 8 # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # #skip-networking # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id = 1 # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>, # MASTER_USER=<user>, MASTER_PASSWORD=<password> ; # # where you replace <host>, <user>, <password> by quoted strings and # <port> by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # change in this file to the variables' values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = <hostname> # # The username the slave will use for authentication when connecting # to the master - required #master-user = <username> # # The password the slave will authenticate with when connecting to # the master - required #master-password = <password> # # The port the master is listening on. # optional - defaults to 3306 #master-port = <port> # # binary logging - not required for slaves, but recommended #log-bin=mysql-bin # # binary logging format - mixed recommended binlog_format=mixed # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = C:\\mysql\\data\\ #innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend #innodb_log_group_home_dir = C:\\mysql\\data\\ # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 384M #innodb_additional_mem_pool_size = 20M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 100M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 [mysqldump] default-character-set=utf8 quick max_allowed_packet = 32M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout
说明:
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[client]
#设置客户端字符集
default-character-set=utf8
[mysqld] #设置字符集
default-character-set=utf8
#设置mysql路径
basedir=E:/mysql/
#设置mysql数据库的数据的存放路径
datadir=E:/mysql/data/
# 默认的存储引擎 default-storage-engine = MYISAM
#default 1M
max_allowed_packet = 32M
#default 2M
sort_buffer_size = 4M
[mysqldump]
#default 16M
max_allowed_packet = 32M
[mysql]
#设置字符集 default-character-set=utf8
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max_allowed_packet 参数说明: 参数的作用是,用来控制其通信缓冲区的最大长度。
sort_buffer_size 参数说明: 查询排序时所能使用的缓冲区大小。
注意:该参数对应的分配内存是每连接独占! 如果有100个连接,那么实际分配的总共排序缓冲区大小为100 × 6 = 600MB。 所以,对于内存在4GB左右的服务器推荐设置为6-8M。
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command:
(1)mysqld --install mysql
(2)net start mysql
(3)mysql -uroot -p(默认密码为空)
(4)mysql> use mysql
(5)mysql> update user set password=password("123456") where user="root";
(6)mysql> flush privileges;
(7)exit;