# CLIENT SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by MySQL client applications.
# Note that only client applications shipped by MySQL are guaranteed
# to read this section. If you want your own MySQL client program to
# honor these values, you need to specify it as an option during the
# MySQL client library initialization.
#
[client]

port=3306

[mysql]

default-character-set=gb2312

# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
[mysqld]

# The TCP/IP Port the MySQL Server will listen on
port=3306


#Path to installation directory. All paths are usually resolved relative to this.
basedir="E:/Java/Mysql/"

#Path to the database root
datadir="C:/ProgramData/MySQL/MySQL Server 5.5/Data/"

# The default character set that will be used when a new schema or table is
# created and no character set is defined
character-set-server=gb2312

# The default storage engine that will be used when create new tables when
default-storage-engine=INNODB

# Set the SQL mode to strict
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

# The maximum amount of concurrent sessions the MySQL server will
# allow. One of these connections will be reserved for a user with
# SUPER privileges to allow the administrator to login even if the
# connection limit has been reached.
max_connections=100

# 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=0

# The number of open tables for all threads. Increasing this value
# increases the number of file descriptors that mysqld requires.
# Therefore you have to make sure to set the amount of open files
# allowed to at least 4096 in the variable "open-files-limit" in
# section [mysqld_safe]
table_cache=256

# 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=35M


# How many threads we should keep in a cache for reuse. When a client
# disconnects, the client's threads are put in the cache if there aren't
# more than thread_cache_size threads from before.  This greatly reduces
# the amount of thread creations needed if you have a lot of new
# connections. (Normally this doesn't give a notable performance
# improvement if you have a good thread implementation.)
thread_cache_size=8

#*** MyISAM Specific options

# The maximum size of the temporary file MySQL is allowed to use while
# recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
# If the file-size would be bigger than this, the index will be created
# through the key cache (which is slower).
myisam_max_sort_file_size=100G

# 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=69M

# 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=55M

# Size of the buffer used for doing full table scans of MyISAM tables.
# Allocated per thread, if a full scan is needed.
read_buffer_size=64K
read_rnd_buffer_size=256K

# This buffer is allocated when MySQL needs to rebuild the index in
# REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
# into an empty table. It is allocated per thread so be careful with
# large settings.
sort_buffer_size=256K

#*** INNODB Specific options ***


# Use this option if you have a MySQL server with InnoDB support enabled
# but you do not plan to use it. This will save memory and disk space
# and speed up some things.
#skip-innodb

# Additional memory pool that is used by InnoDB to store metadata
# information.  If InnoDB requires more memory for this purpose it will
# start to allocate it from the OS.  As this is fast enough on most
# recent operating systems, you normally do not need to change this
# value. SHOW INNODB STATUS will display the current amount used.
innodb_additional_mem_pool_size=3M

# If set to 1, InnoDB will flush (fsync) the transaction logs to the
# disk at each commit, which offers full ACID behavior. If you are
# willing to compromise this safety, and you are running small
# transactions, you may set this to 0 or 2 to reduce disk I/O to the
# logs. Value 0 means that the log is only written to the log file and
# the log file flushed to disk approximately once per second. Value 2
# means the log is written to the log file at each commit, but the log
# file is only flushed to disk approximately once per second.
innodb_flush_log_at_trx_commit=1

# The size of the buffer InnoDB uses for buffering log data. As soon as
# it is full, InnoDB will have to flush it to disk. As it is flushed
# once per second anyway, it does not make sense to have it very large
# (even with long transactions).
innodb_log_buffer_size=2M

# InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and
# row data. The bigger you set this the less disk I/O is needed to
# access data in tables. On a dedicated database server you may set this
# parameter up to 80% of the machine physical memory size. Do not set it
# too large, though, because competition of the physical memory may
# cause paging in the operating system.  Note that on 32bit systems you
# might be limited to 2-3.5G of user level memory per process, so do not
# set it too high.
innodb_buffer_pool_size=107M

# Size of each log file in a log group. You should set the combined size
# of log files to about 25%-100% of your buffer pool size to avoid
# unneeded buffer pool flush activity on log file overwrite. However,
# note that a larger logfile size will increase the time needed for the
# recovery process.
innodb_log_file_size=54M

# Number of threads allowed inside the InnoDB kernel. The optimal value
# depends highly on the application, hardware as well as the OS
# scheduler properties. A too high value may lead to thread thrashing.
innodb_thread_concurrency=18

[client]  
port=3306  

[mysql]  
default-character-set=gbk  

[mysqld]
port = 3306
socket = /tmp/mysql.sock
# 設(shè)置mysql的安裝目錄
basedir=F:\\Hzq Soft\\MySql Server 51GA
# 設(shè)置mysql數(shù)據(jù)庫的數(shù)據(jù)的存放目錄，必須是data，或者是\\xxx-data
datadir=F:\\Hzq Soft\\MySql Server 51GA\\data
#innodb_log_arch_dir 默認(rèn)datadir
#innodb_log_group_home_dir  默認(rèn)datadir
# 設(shè)置mysql服務(wù)器的字符集，默認(rèn)編碼
default-character-set=utf8

#連接數(shù)的操作系統(tǒng)監(jiān)聽隊(duì)列數(shù)量，如果經(jīng)常出現(xiàn)“拒絕連接”錯誤可適當(dāng)增加此值
back_log = 50
#不使用接聽TCP / IP端口方法，mysqld通過命名管道連接
#skip-networking
# 最大連接數(shù)量
max_connections = 90
#打開表的線程數(shù)量限定，最大4096，除非用mysqld_safe打開限制
table_open_cache = 2048
#MySql 服務(wù)接收針對每個進(jìn)程最大查詢包大小
max_allowed_packet = 16M
#作用于SQL查詢單筆處理使用的內(nèi)存緩存，如果一筆操作的二進(jìn)制數(shù)據(jù)超過了限定大小，將會在磁盤上開辟空間處理，一般設(shè)為 1-2M即可，默認(rèn)1M
binlog_cache_size = 2M
#單個內(nèi)存表的最大值限定
max_heap_table_size = 64M
#為每個線程分配的排序緩沖大小
sort_buffer_size = 8M
#join 連表操作的緩沖大小,根據(jù)實(shí)際業(yè)務(wù)來設(shè)置，默認(rèn)8M
join_buffer_size = 32M
#操作多少個離開連接的線程的緩存
thread_cache_size = 8
#并發(fā)線程數(shù)量，默認(rèn)為8，可適當(dāng)增加到2倍以內(nèi)。如果有多個CPU可以乘 上CPU的數(shù)量。雙核CPU可以乘 上當(dāng)前最核數(shù)再乘 上70%-85%
thread_concurrency = 16
#專用于具體SQL的緩存，如果提交的查詢與幾次中的某查詢相同，并且在query緩存中存在，則直接返回緩存中的結(jié)果。
query_cache_size = 64M
#對應(yīng)上一條設(shè)置，當(dāng)查詢的結(jié)果超過下面設(shè)置的大小時(shí)，將不會趣入到上面設(shè)置的緩存區(qū)中，避免了一個大的結(jié)果占據(jù)大量緩存。
query_cache_limit = 2M
#設(shè)置加全文檢索中的最小單詞長度。
#ft_min_word_len = 4
#CREATE TABLE 語句的默認(rèn)表類型，如果不自己指定類型，則使用下行的類型
default-storage-engine = InnoDB
#線程堆棧大小，mysql說它自己用的堆棧大小不超過64K。這個值可適當(dāng)設(shè)高一點(diǎn)（在RCA的項(xiàng)目中都是共用同一個數(shù)據(jù)庫連接的），默認(rèn)192K
thread_stack = 800K
#設(shè)置事務(wù)處理的級別,默認(rèn) REPEATABLE-READ，一般用它就即可，以下二行按順序?qū)?yīng)，
#可讀寫未提交的數(shù)據(jù)，創(chuàng)建未提交的數(shù)據(jù)副本讀寫，未提交之前可讀不可寫，只允許串行序列招行事務(wù)。
# READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE
transaction_isolation = REPEATABLE-READ
#單一內(nèi)存臨時(shí)表在內(nèi)存中的大小，超過此值自動轉(zhuǎn)換到磁盤操作
tmp_table_size = 64M
#啟動二進(jìn)制日志功能，可通過它實(shí)現(xiàn)時(shí)間點(diǎn)恢復(fù)最新的備份
#log-bin=mysql-bin
#二進(jìn)制日志格式，對就上一條，-建議混合格式
#binlog_format=mixed
#轉(zhuǎn)換查詢?yōu)榫徛樵?
slow_query_log
#對應(yīng)上一條，如果一個查詢超過了下條設(shè)定的時(shí)間則執(zhí)行上一條。
long_query_time = 2
#自定義主機(jī)ID識別符，用于主從或多服務(wù)器之間識別，為 一個 int 類型
server-id = 1
#一般用來緩存MyISAM表的主鍵，也用于臨時(shí)的磁盤表緩存主鍵，上面多次出現(xiàn)臨時(shí)磁盤表，所以就算不用MyISAM也最好為其設(shè)置一個不小的值，默認(rèn)32M
key_buffer_size = 56M
#全表掃描MyISAM表時(shí)的緩存，每個線程擁有下行的大小。
read_buffer_size = 2M
#排序操作時(shí)與磁盤之間的緩存，分到每個線程，默認(rèn)16M
read_rnd_buffer_size = 16M
#MyISAM使用特殊樹形進(jìn)行批量插入時(shí)的緩存，如insert ... values(..)(..)(..)
bulk_insert_buffer_size = 64M
#MyISAM索引文件的最大限定，
myisam_max_sort_file_size = 12G
#如果一個myisam表有一個以上的索引， MyISAM可以使用一個以上線程來排序并行它們。較耗硬件資源，如果你的環(huán)境不錯，可以增加此值。
myisam_repair_threads = 2
#自動檢查和修復(fù)無法正確關(guān)閉MyISAM表。
myisam_recover
# *** INNODB Specific options ***
#開啟下條將會禁用 INNODB
#skip-innodb
#一般不用設(shè)置或者說設(shè)了也沒多大用，InnoDB會自己與操作系統(tǒng)交互管理其附加內(nèi)存池所使用InnoDB的存儲數(shù)據(jù)的大小
innodb_additional_mem_pool_size = 16M
#innodb整體緩沖池大小，不宜過大，設(shè)為本地內(nèi)存的 50%-75% 比較合適,在本機(jī)開發(fā)過程中可以設(shè)得較小一點(diǎn)如 64M,256M
innodb_buffer_pool_size = 256M
#InnoDB的數(shù)據(jù)存儲在一個或多個數(shù)據(jù)文件組成的表空間
innodb_data_file_path = ibdata1:10M:autoextend
#用于異步IO操作的線程數(shù)量，默認(rèn)為 4 ，可適當(dāng)提高
innodb_file_io_threads = 8
#線程數(shù)內(nèi)允許的InnoDB內(nèi)核,不宜太高
innodb_thread_concurrency = 14
#InnoDB的事務(wù)日志快存行為,默認(rèn)為 1，為0可減輕磁盤I/0操作，還有以為2
innodb_flush_log_at_trx_commit = 1
#InnoDB的用于的緩沖日志數(shù)據(jù)的大小
innodb_log_buffer_size = 16M
#日志文件，可設(shè)置為25%-90%的總體緩存大小，默認(rèn) 256M. 修改此項(xiàng)要先刪除datadir\ib_logfileXXX
innodb_log_file_size = 256M
#日志組數(shù)量，默認(rèn)為3
innodb_log_files_in_group = 3
#InnoDB的日志文件位置。默認(rèn)是MySQL的datadir
#innodb_log_group_home_dir
#InnoDB最大允許的臟頁緩沖池的百分比，默認(rèn)90
innodb_max_dirty_pages_pct = 90
#事務(wù)死鎖超時(shí)設(shè)定
innodb_lock_wait_timeout = 120

[client]
port = 3306
socket = /tmp/mysql.sock
# 設(shè)置mysql客戶端的字符集
default-character-set=utf8

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash

# Only allow UPDATEs and DELETEs that use keys.
#safe-updates

[WinMySQLAdmin]
# 指定mysql服務(wù)啟動啟動的文件
Server=F:\\myweb\\MySql Server\\bin\\mysqld.exe