MySQL的基本配置

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query_cache_size, tmp_table_size 这两个选项一定要设置!
 
# The following options will be passed to all MySQL clients
[client]
#password       = your_password
port           = 3306
socket                = /home/work//tmp/mysql.sock
 
# Here follows entries for some specific programs
 
# The MySQL server
[mysqld]
port           = 3306
bind-address = 127.0.0.1
socket                = /home/work/mysql/tmp/mysql.sock
#skip-locking
max_allowed_packet = 1M
table_open_cache = 16
sort_buffer_size = 8M
read_buffer_size = 512K
read_rnd_buffer_size = 256K
net_buffer_length = 8K
thread_stack = 128K
 
# Size of the Key Buffer, used to cache index blocks for MyISAM tables.
# Do not set it larger than 30% of your available memory, as some memory
# is also required by the OS to cache rows. Even if you're not using
# MyISAM tables, you should still set it to 8-64M as it will also be
# used for internal temporary disk tables.
key_buffer_size = 8M
 
# If the temporary file used for fast index creation would be bigger
# than using the key cache by the amount specified here, then prefer the
# key cache method.  This is mainly used to force long character keys in
# large tables to use the slower key cache method to create the index.
myisam_sort_buffer_size = 8M
 
# Query cache is used to cache SELECT results and later return them
# without actual executing the same query once again. Having the query
# cache enabled may result in significant speed improvements, if your
# have a lot of identical queries and rarely changing tables. See the
# "Qcache_lowmem_prunes" status variable to check if the current value
# is high enough for your load.
# Note: In case your tables change very often or if your queries are
# textually different every time, the query cache may result in a
# slowdown instead of a performance improvement.
query_cache_size=16M
 
# Maximum size for internal (in-memory) temporary tables. If a table
# grows larger than this value, it is automatically converted to disk
# based table This limitation is for a single table. There can be many
# of them.
tmp_table_size=16M
 
# 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
 
# Uncomment the following if you want to log updates
#log-bin=mysql-bin
 
# binary logging format - mixed recommended
#binlog_format=mixed
 
# Uncomment the following if you are using InnoDB tables
#default_storage_engine=InnoDB
 
innodb_data_home_dir = /home/work/mysql/var/
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /home/work/mysql/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 = 32M
innodb_additional_mem_pool_size = 4M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 10M
innodb_log_buffer_size = 16M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
 
[mysqldump]
quick
max_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 = 8M
sort_buffer_size = 8M
 
[mysqlhotcopy]
interactive-timeout

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