back_log = 300
max_connections = 3000
max_connect_errors = 30
table_cache = 4096
max_allowed_packet = 32M
#external-locking
#skip-networking
binlog_cache_size = 4M
max_heap_table_size = 128M
sort_buffer_size = 16M
join_buffer_size = 16M
thread_cache_size = 16
thread_concurrency = 8
query_cache_size = 128M
ft_min_word_len = 8
#memlock
thread_stack = 512K
transaction_isolation = REPEATABLE-READ
tmp_table_size = 128M
#log_slave_updates
#log
#log_warnings
log_slow_queries
long_query_time = 6
log_long_format
................

[client]
port    = 3306
socket    = /tmp/mysql.sock
default-character-set = utf8 #設(shè)置客戶端的字符編碼
[mysqld]
# generic configuration options
port    = 3306
socket    = /tmp/mysql.sock
#*** char set ***
character-set-server = utf8 #設(shè)置服務(wù)器端的字符編碼
            
#*** network ***
back_log = 512
#skip-networking #默認(rèn)沒(méi)有開(kāi)啟
max_connections = 3000
max_connect_errors = 30
table_open_cache = 4096
#external-locking #默認(rèn)沒(méi)有開(kāi)啟
max_allowed_packet = 32M
max_heap_table_size = 128M
            
# *** global cache ***
read_buffer_size = 8M
read_rnd_buffer_size = 64M
sort_buffer_size = 16M
join_buffer_size = 16M
            
# *** thread ***
thread_cache_size = 16
thread_concurrency = 8
thread_stack = 512K
            
# *** query cache ***
query_cache_size = 128M
query_cache_limit = 4M
            
# *** index ***
ft_min_word_len = 8
            
#memlock #默認(rèn)沒(méi)有開(kāi)啟
default-storage-engine = INNODB
transaction_isolation = REPEATABLE-READ
            
# *** tmp table ***
tmp_table_size = 64M
            
# *** bin log ***
log-bin=mysql-bin
binlog_cache_size = 4M
binlog_format=mixed
#log_slave_updates #默認(rèn)沒(méi)有開(kāi)啟
#log #默認(rèn)沒(méi)有開(kāi)啟，此處是查詢?nèi)罩?，開(kāi)啟會(huì)影響服務(wù)器性能
log_warnings #開(kāi)啟警告日志
            
# *** slow query log ***
slow_query_log
long_query_time = 10
# *** Replication related settings
server-id = 1
#server-id = 2
#master-host = <hostname>
#master-user = <username>
#master-password = <password>
#master-port = <port>
#read_only
#*** MyISAM Specific options
key_buffer_size = 128M
bulk_insert_buffer_size = 256M
myisam_sort_buffer_size = 256M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
myisam_recover
            
# *** INNODB Specific options ***
#skip-innodb #默認(rèn)沒(méi)有開(kāi)啟
innodb_additional_mem_pool_size = 64M
innodb_buffer_pool_size = 6G #注意在32位系統(tǒng)上你每個(gè)進(jìn)程可能被限制在 2-3.5G 用戶層面內(nèi)存限制, 所以不要設(shè)置的太高.
innodb_data_file_path = ibdata1:10M:autoextend
#innodb_data_home_dir = <directory>
innodb_write_io_threads = 8
innodb_read_io_threads = 8
#innodb_force_recovery=1
innodb_thread_concurrency = 16
innodb_flush_log_at_trx_commit = 2
#說(shuō)明：innodb_flush_log_at_trx_commit = 2 如果是游戲服務(wù)器，建議此值設(shè)置為2；如果是對(duì)數(shù)據(jù)安全要求極高的應(yīng)用，建議設(shè)置為1；設(shè)置為0性能最高，但如果發(fā)生故障，數(shù)據(jù)可能會(huì)有丟失的危險(xiǎn)！默認(rèn)值1的意思是每一次事務(wù)提交或事務(wù)外的指令都需要把日志寫入（flush）硬盤，這是很費(fèi)時(shí)的。特別是使用電池供電緩存（Battery backed up cache）時(shí)。設(shè)成2對(duì)于很多運(yùn)用，特別是從MyISAM表轉(zhuǎn)過(guò)來(lái)的是可以的，它的意思是不寫入硬盤而是寫入系統(tǒng)緩存。日志仍然會(huì)每秒flush到硬盤，所以你一般不會(huì)丟失超過(guò)1-2秒的更新。設(shè)成0會(huì)更快一點(diǎn)，但安全方面比較差，即使MySQL掛了也可能會(huì)丟失事務(wù)的數(shù)據(jù)。而值2只會(huì)在整個(gè)操作系統(tǒng)掛了時(shí)才可能丟數(shù)據(jù)。
#innodb_fast_shutdown
innodb_log_buffer_size = 16M
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
#innodb_log_group_home_dir
innodb_max_dirty_pages_pct = 90
#innodb_flush_method=O_DSYNC
innodb_lock_wait_timeout = 120
[mysqldump]
quick
max_allowed_packet = 32M
[mysql]
no-auto-rehash
[myisamchk]
key_buffer_size = 2048M
sort_buffer_size = 2048M
read_buffer = 32M
write_buffer = 32M
[mysqlhotcopy]
interactive-timeout
[mysqld_safe]
open-files-limit = 10240