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# Example MySQL config file for small systems.
#数据库最小系统配置文件样例
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# This is for a system with little memory (<= 64M) where MySQL is only used # from time to time and it's important that the mysqld daemon # doesn't use much resources.
#这个配置时为内存比较小的系统且数据库不连续使用的系统设置的，
#最重要的时它的后台服务几乎不会使用太多资源
# 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
#数据库程序寻找调度平台可以调度的一些位置的选项文件。
#你可以把选项文件复制到这些位置
# 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.
#在这个文件中，你可以使用程序支持的所有长选项。
#如果你想只知道程序支持哪个选项，运行程序查找帮助
# The following options will be passed to all MySQL clients
#下列选项应用到数据库的客户端
[client] #password= your_password #密码 port= 3306 #端口 socket= /tmp/mysql.sock #socket位置
# Here follows entries for some specific programs
#接下来的条目是为一些特别程序准备的
# The MySQL server [mysqld] port= 3306 #端口 socket= /tmp/mysql.sock #socket位置 skip-external-locking #跳过扩展锁 key_buffer_size = 16K #键缓存是 16K max_allowed_packet = 1M #允许最大信息包 1M table_open_cache = 4 #打开表缓存 4 sort_buffer_size = 64K #排序缓存 64K read_buffer_size = 256K #读缓存区 256K read_rnd_buffer_size = 256K # net_buffer_length = 2K #网络缓存长度2K thread_stack = 128K #线程堆 128K
# 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 # (using the "enable-named-pipe" option) will render mysqld useless! # #skip-networking server-id= 1
#不要一直监听一个tcp/ip端口。如果所有进程需要连接到相同主机数据库后台，那么这个是安全加强项。
#和数据库后台的所有交互必须经过Unix code或命名管道。
#注意如果windows没有激活相应选项（enable-named-pipe），这个选项是无效的。
# Uncomment the following if you want to log updates #日志更新 #log-bin=mysql-bin
# binary logging format - mixed recommended #binlog_format=mixed
# 二进制混合格式日志记录
# Causes updates to non-transactional engines using statement format to be # written directly to binary log. Before using this option make sure that # there are no dependencies between transactional and non-transactional # tables such as in the statement INSERT INTO t_myisam SELECT * FROM # t_innodb; otherwise, slaves may diverge from the master. #binlog_direct_non_transactional_updates=TRUE
#更新到非事务引擎使用说明格式写到二进制日志中，
#使用这个选项之前确保依赖在事务和非事务表
#例如:插入数据。否则，备机和主机背道而驰。
# Uncomment the following if you are using InnoDB tables #是否使用Innodb表 #innodb_data_home_dir = /usr/local/mysql/data #innodb_data_file_path = ibdata1:10M:autoextend #innodb_log_group_home_dir = /usr/local/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 = 16M #innodb_additional_mem_pool_size = 2M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 5M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50
[mysqldump] #备份 quick max_allowed_packet = 16M
[mysql] #no-auto-rehash
#命令不自动补全 http://blog.51yip.com/mysql/1056.html
auto-rehash
#修改为自动补全 只能提示表名和表里面字段名
# Remove the next comment character if you are not familiar with SQL #安全更新 #safe-updates
[myisamchk]
#获得有关你的数据库表的统计信息或检查、修复、优化他们 http://blog.csdn.net/wyzxg/article/details/7303486
key_buffer_size = 8M
sort_buffer_size = 8M
[mysqlhotcopy]
#热备 https://www.centos.bz/2011/11/backup-mysql-database-with-mysqlhotcopy/
interactive-timeout