一、mysql安装
yum安装：
vim /etc/yum.repos.d/mysql.repo
[mysql57-community] name=MySQL 5.7 Community Server baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/ enabled=1 gpgcheck=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
yum -y install mysql yum -y install mysql-community-server.x86_64
初始化数据库
mysqld --initialize --user=mysql
或编译安装的
/usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql
启动、关闭、重启、开机自启动数据库
systenctl start mysqld
systemctl stop mysqld
systemctl restart mysqld
systemctl enable mysqld
查找初始密码
grep 'password' /var/log/mysqld.log
登录数据库
mysql -u root -p'8N4:=!QJee?.'
修改密码
ALTER USER'root'@'localhost' IDENTIFIED BY 'DuLingYu@123';
编译安装
#从MySQL 5.7.5开始Boost库是必需的
wget https://sourceforge.net/projects/boost/files/boost/1.68.0/boost_1_68_0.tar.gz
wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.25-el7-x86_64.tar.gz
安装依赖包
cd /root/oneinstack/src
groupadd mysql
useradd -r -g mysql -s /bin/false mysql
预编译
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DDOWNLOAD_BOOST=1 -DWITH_BOOST=../boost_1_59_0 -DSYSCONFDIR=/etc -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITH_MYISAM_STORAGE_ENGINE=1 -DENABLED_LOCAL_INFILE=1 -DENABLE_DTRACE=0 -DDEFAULT_CHARSET=utf8mb4 -DDEFAULT_COLLATION=utf8mb4_general_ci -DWITH_EMBEDDED_SERVER=1
编译安装
#编译很消耗系统资源，小内存可能编译通不过
make -j `grep processor /proc/cpuinfo | wc -l` make install
启动脚本，设置开机自启动
/bin/cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld chmod +x /etc/init.d/mysqld chkconfig --add mysqld chkconfig mysqld on
/etc/my.cnf，仅供参考
[client] port = 3306 socket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] port = 3306 socket = /tmp/mysql.sock basedir = /usr/local/mysql datadir = /data/mysql pid-file = /data/mysql/mysql.pid user = mysql bind-address = 0.0.0.0 server-id = 1 init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 #skip-name-resolve #skip-networking back_log = 300 max_connections = 1000 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M binlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M sort_buffer_size = 8M join_buffer_size = 8M key_buffer_size = 4M thread_cache_size = 8 query_cache_type = 1 query_cache_size = 8M query_cache_limit = 2M ft_min_word_len = 4 log_bin = mysql-bin binlog_format = mixed expire_logs_days = 30 log_error = /data/mysql/mysql-error.log slow_query_log = 1 long_query_time = 1 slow_query_log_file = /data/mysql/mysql-slow.log performance_schema = 0 explicit_defaults_for_timestamp #lower_case_table_names = 1 skip-external-locking default_storage_engine = InnoDB #default-storage-engine = MyISAM innodb_file_per_table = 1 innodb_open_files = 500 innodb_buffer_pool_size = 64M innodb_write_io_threads = 4 innodb_read_io_threads = 4 innodb_thread_concurrency = 0 innodb_purge_threads = 1 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 32M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 bulk_insert_buffer_size = 8M myisam_sort_buffer_size = 8M myisam_max_sort_file_size = 10G myisam_repair_threads = 1 interactive_timeout = 28800 wait_timeout = 28800 [mysqldump] quick max_allowed_packet = 16M [myisamchk] key_buffer_size = 8M sort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
初始化数据库
/usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql
设置数据库密码
dbrootpwd=oneinstack #数据库root密码 /usr/local/mysql/bin/mysql -e "grant all privileges on *.* to root@'127.0.0.1' identified by "$dbrootpwd" with grant option;" /usr/local/mysql/bin/mysql -e "grant all privileges on *.* to root@'localhost' identified by "$dbrootpwd" with grant option;"