MySQL配置文件-my.ini
1 # SERVER SECTION
2 # ----------------------------------------------------------------------
3 #
4 # The following options will be read by the MySQL Server. Make sure that
5 # you have installed the server correctly (see above) so it reads this
6 # file.
7 #
8 [mysqld]
9
10 # The TCP/IP Port the MySQL Server will listen on
11 port=3306
12
13
14 #Path to installation directory. All paths are usually resolved relative to this.
15 basedir="E:/Java/Mysql/"
16
17 #Path to the database root
18 datadir="C:/ProgramData/MySQL/MySQL Server 5.5/Data/"
19
20 # The default character set that will be used when a new schema or table is
21 # created and no character set is defined
22 character-set-server=gb2312
23
24 # The default storage engine that will be used when create new tables when
25 default-storage-engine=INNODB
26
27 # Set the SQL mode to strict
28 sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
29
30 # The maximum amount of concurrent sessions the MySQL server will
31 # allow. One of these connections will be reserved for a user with
32 # SUPER privileges to allow the administrator to login even if the
33 # connection limit has been reached.
34 max_connections=100
35
36 # Query cache is used to cache SELECT results and later return them
37 # without actual executing the same query once again. Having the query
38 # cache enabled may result in significant speed improvements, if your
39 # have a lot of identical queries and rarely changing tables. See the
40 # "Qcache_lowmem_prunes" status variable to check if the current value
41 # is high enough for your load.
42 # Note: In case your tables change very often or if your queries are
43 # textually different every time, the query cache may result in a
44 # slowdown instead of a performance improvement.
45 query_cache_size=0
46
47 # The number of open tables for all threads. Increasing this value
48 # increases the number of file descriptors that mysqld requires.
49 # Therefore you have to make sure to set the amount of open files
50 # allowed to at least 4096 in the variable "open-files-limit" in
51 # section [mysqld_safe]
52 table_cache=256
53
54 # Maximum size for internal (in-memory) temporary tables. If a table
55 # grows larger than this value, it is automatically converted to disk
56 # based table This limitation is for a single table. There can be many
57 # of them.
58 tmp_table_size=35M
59
60
61 # How many threads we should keep in a cache for reuse. When a client
62 # disconnects, the client's threads are put in the cache if there aren't
63 # more than thread_cache_size threads from before. This greatly reduces
64 # the amount of thread creations needed if you have a lot of new
65 # connections. (Normally this doesn't give a notable performance
66 # improvement if you have a good thread implementation.)
67 thread_cache_size=8
68
69 #*** MyISAM Specific options
70
71 # The maximum size of the temporary file MySQL is allowed to use while
72 # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
73 # If the file-size would be bigger than this, the index will be created
74 # through the key cache (which is slower).
75 myisam_max_sort_file_size=100G
76
77 # If the temporary file used for fast index creation would be bigger
78 # than using the key cache by the amount specified here, then prefer the
79 # key cache method. This is mainly used to force long character keys in
80 # large tables to use the slower key cache method to create the index.
81 myisam_sort_buffer_size=69M
82
83 # Size of the Key Buffer, used to cache index blocks for MyISAM tables.
84 # Do not set it larger than 30% of your available memory, as some memory
85 # is also required by the OS to cache rows. Even if you're not using
86 # MyISAM tables, you should still set it to 8-64M as it will also be
87 # used for internal temporary disk tables.
88 key_buffer_size=55M
89
90 # Size of the buffer used for doing full table scans of MyISAM tables.
91 # Allocated per thread, if a full scan is needed.
92 read_buffer_size=64K
93 read_rnd_buffer_size=256K
94
95 # This buffer is allocated when MySQL needs to rebuild the index in
96 # REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
97 # into an empty table. It is allocated per thread so be careful with
98 # large settings.
99 sort_buffer_size=256K
