Mac上怎么配置MySQL

在Mac上可以通过官方dmg文件或者Homebrew的方式安装MySQL,具体方式就不介绍了,可以谷歌一下,安装完成之后,在电脑上却找不到MySQL的配置文件my.cnf,可以通过命令find / -iname my.cnf进行全盘查找。难道我们Mac上的MySQL不需要配置文件?

我们进入到MySQL的安装路径下,查看support-files/mysql.server文件内容,在文件中有一块说明了my.cnf文件的默认位置:

image-20200428162211287

大致意思就是如果mysql没有安装在/usr/local/mysql目录下的话,需要手动在/etc目录下创建my.cnf文件来配置安装的MySQL,并且在服务启动的时候会默认先去读取/etc/my.cnf,若文件存在则直接使用该文件中的配置,从这条规则来看,我们只需要在/etc目录下创建一个my.cnf文件,并将我们需要自定义的配置写到里面即可

image-20200428163629688

附赠一份官方的my.cnf配置文件内容:

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# 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://dev.mysql.com/doc/mysql/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]
default-character-set=utf8
#password = your_password
port= 3306
socket= /tmp/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
character-set-server=utf8
init_connect='SET NAMES utf8
port= 3306
socket= /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character-set-server=utf8
init_connect='SET NAMES utf8'
# 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
#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 omitted
server-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 = /usr/local/mysql/data
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /usr/local/mysql/data
# 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]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
default-character-set=utf8

[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout