大数据学习之 Linux安装Mysql

一 环境搭建

//本地上传mysql安装包到虚拟机中
//解压安装包到/usr/local/目录下，并构建软连接
tar -xzvf mysql-5.6.23-linux-glibc2.5-x86.tar.gz -C /usr/local/
//构建软链接
ln -s mysql-5.6.23-linux-glibc2.5-x86_64 mysql

创建用户和用户组

//指定组的gid 为101
gruopadd -g 101 dba
//指定uid为514 指定主组为dba，所有组添加root 指定用户的home目录为/usr/local/mysql
useradd -u 514 -g dba -G root -d /usr/local/mysql mysqladmin

拷贝环境变量到mysqladmin 的home目录

cp /etc/skel/.*  /usr/local/mysql

创建/etc/my.conf文件

//在默认路径下
touch  /etc/my.cnf 
vi my.cnf
//.........................................................................................................
[client]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock 
[mysqld]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock
kip-external-locking
key_buffer_size = 256M
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 4M
query_cache_size= 32M
max_allowed_packet = 16M
myisam_sort_buffer_size=128M
tmp_table_size=32M
table_open_cache = 512
thread_cache_size = 8
wait_timeout = 86400
interactive_timeout = 86400
max_connections = 600
thread_concurrency = 32
default-storage-engine = INNODB
transaction-isolation = READ-COMMITTED
server-id  = 1
basedir     = /usr/local/mysql
datadir     = /usr/local/mysql/data
pid-file     = /usr/local/mysql/data/hostname.pid
log-warnings
sysdate-is-now
binlog_format = MIXED
log_bin_trust_function_creators=1
log-error  = /usr/local/mysql/data/hostname.err
log-bin=/usr/local/mysql/arch/mysql-bin
#other logs
#general_log =1
#general_log_file  = /usr/local/mysql/data/general_log.err
#slow_query_log=1
#slow_query_log_file=/usr/local/mysql/data/slow_log.err
innodb_data_home_dir = /usr/local/mysql/data/
innodb_data_file_path = ibdata1:500M:autoextend
innodb_log_group_home_dir = /usr/local/mysql/arch
innodb_log_files_in_group = 2
innodb_log_file_size = 200M
innodb_buffer_pool_size = 2048M   //注意 这个看需求修改
innodb_additional_mem_pool_size = 50M
innodb_log_buffer_size = 16M
innodb_lock_wait_timeout = 100
#innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 1
innodb_locks_unsafe_for_binlog=1
#innodb io features: add for mysql5.5.8
performance_schema
innodb_read_io_threads=4
innodb-write-io-threads=4
innodb-io-capacity=200
#purge threads change default(0) to 1 for purge
innodb_purge_threads=1
innodb_use_native_aio=on
#case-sensitive file names and separate tablespace
innodb_file_per_table = 1
lower_case_table_names=1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[mysqlhotcopy]
interactive-timeout
[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

上面文件用于安装部分，可将innodb_buffer_pool_size修改大小

改变用户权限 用户和用户组

chown mysqladmin:dba /etc/my.cnf
chmod 640 /etc/my.cnf

chown +R mysqladmin:dba /usr/local/mysql
chmod 755 /usr/local/mysql
chown -R mysqladmin:dba /usr/local/mysql/*
chown -R mysqladmin:dba mysql-5.6.23-linux-glibc2.5-x86_64

创建binlog日志存储文件

su - XXX
mkdir -arch

正式安装

scripts/mysql_install_db  \
--user=mysqladmin \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data

更新密码 和清楚用户

use mysql;
select user,password,host from user;
//设置密码 和删除那些密码为0的
update user set password=password('123') where user ='root';
delete from user where user=' '

配置个人环境变量

//用户组下
vi .bash _profile
export MYSQL_HOME=/usr/local/mysql
PATH=${MYSQL_HOME}/bin :$PATH:$HOME/bin

mysql三句话 记住

创建数据库

creat database data;

创建用户

grant all privileges on XXXdata .* to XXX@'%' identified by '123' ;

刷新

flush privileges;