【linux】安装和配置 mysql服务器
按照官网教程,根据自己的系统安装不同的发行版
https://dev.mysql.com/doc/refman/5.6/en/linux-installation-yum-repo.html
配置:
# Example MySQL config file for very large systems.
#
# This is for a large system with memory of 1G-2G where the system runs mainly
# MySQL.
#
# 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]
#password = your_password
port = 13306
socket = /var/lib/mysql/mysql.sock # Here follows entries for some specific programs # The MySQL server
[mysqld]
port = 13306
socket = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 384M
max_allowed_packet = 1M
table_open_cache = 512
sort_buffer_size = 4M
read_buffer_size = 4M
read_rnd_buffer_size = 8M
# thread_cache_size = 32
# 1G->8, 2G->16, 3G->32, 3G+->64
# 此值可能引发org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction;的异常
thread_cache_size = 64
lower_case_table_names=1 # query_cache_type 可以设置为0(OFF),1(ON)或者2(DEMOND)
# 分别表示完全不使用query cache
# 除显式要求不使用query cache(使用sql_no_cache)之外的所有的select都使用query cache
# 只有显示要求才使用query cache(使用sql_cache)
# query_cache_type = ON
query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency
thread_concurrency = 10 max_connections = 800
back_log = 200 # 以下表明如果列为 TIMESTAMP, 则需要显示指定其行为
# TIMESTAMP如果没有显示声明NOT NULL,是允许NULL值的,可以直接设置改列为NULL,而没有默认填充行为。
# TIMESTAMP不会默认分配DEFAULT CURRENT_TIMESTAMP 和 ON UPDATE CURRENT_TIMESTAMP属性。
# 声明为NOT NULL且没有默认子句的TIMESTAMP列是没有默认值的。往数据表中插入列,又没有给TIMESTAMP列赋值时,
# 如果是严格SQL模式,会抛出一 个错误,如果严格SQL模式没有启用,该列会赋值为’0000-00-00 00:00:00′,同时出现一个警告。
# 这和MySQL处理其他时间类型数据一样,如DATETIME
explicit_defaults_for_timestamp = true # binlog
log_bin = mysql-bin
binlog_format = mixed
expire_logs_days = 30 #超过30天的binlog删除 # slow query
slow_query_log = 1
long_query_time = 1 #慢查询时间 超过1秒则为慢查询
slow_query_log_file = /var/log/mysql-slow.log # MySQL支持4种事务隔离级别,他们分别是:
# READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE.
# 如没有指定,MySQL默认采用的是REPEATABLE-READ,ORACLE默认的是READ-COMMITTED
transaction_isolation = REPEATABLE-READ # 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 # 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
#
# binary logging format - mixed recommended
#binlog_format=mixed ###########################################
# Innodb settings
########################################## # Uncomment the following if you are using InnoDB tables
innodb_data_home_dir = /var/lib/mysql
# need to be commented, or you will create one
# innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend
innodb_log_group_home_dir = /var/lib/mysql
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
innodb_buffer_pool_size = 1024M
innodb_additional_mem_pool_size = 20M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 100M
innodb_log_buffer_size = 8M
# 0: fastest but not safe, 1 safest but not fast, 2 fast and safe(1-2s)
innodb_flush_log_at_trx_commit = 2
#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 = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M [mysqlhotcopy]
interactive-timeout
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