問(wèn)：# Example MySQL config file for medium systems.## This is for a system with little memory (32M – 64M) where MySQL plays# an important part, or systems up to 128M where MySQL is used together with# other programs (such as a web server)## 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://xxxxxxxx.xxxxx.xxxxx/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]#password = your_passwordport = 3306socket = /tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server[mysqld]port = 3306socket = /tmp/mysql.gkey_buffer_size = 16Mmax_allowed_packet = 1Mtable_open_cache = 64sort_buffer_size = 512Knet_buffer_length = 8Kread_buffer_size = 256Kread_rnd_buffer_size = 512Kmyisam_sort_buffer_size = 8M # 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 # binary logging format – mixed recommended#binlog_format=mixed # 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 omittedserver-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 # Uncomment the following if you are using InnoDB tables#innodb_data_home_dir = /www/wdlinux/mysql-5.1.61/var#innodb_data_file_path = ibdata1:10M:autoextend#innodb_log_group_home_dir = /www/wdlinux/mysql-5.1.61/var# 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]quickmax_allowed_packet = 16M [mysql]no-auto-rehash# Remove the next comment character if you are not familiar with SQL#safe-updates [myisamchk]key_buffer_size = 20Msort_buffer_size = 20Mread_buffer = 2Mwrite_buffer = 2M [mysqlhotcopy]intt
