centos7配置部署mysql5.7 https://blog.csdn.net/u012052268/article/details/103923056https://www.bbsmax.com/A/mo5kkgeM5w/https://www.cnblogs.com/louis-liu-oneself/p/13504270.htmlhttps://www.cnblogs.com/dengshihuang/p/8029092.html //参考C7准备环境：卸载之前mysql版本-qa | grep mysql //检查当前是否安装mysqlrpm -e 已经存在的MySQL全名安装依赖包install -y gcc-c++ bison-devel ncurses-devel bison perl perl-devel perl perl-devel libaio3.下载mysqlwget https://repo.huaweicloud.com/mysql/Downloads/MySQL-5.7/mysql-5.7.34-linux-glibc2.12-x86_64.tar.gz4.解压mysqltar zxvf mysql-5.7.34-linux-glibc2.12-x86_64.tar.gz mv mysql-5.7.34-linux-glibc2.12-x86_64.tar.gz /usr/local/mysqlcp my-default.cnf /etc/my.cnf //拷贝配置文件并修改文件参考第10步骤cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld //拷贝启动脚本mkdir /usr/local/mysql/data //创建MySQL数据data目录5.添加用户组赋予权限groupadd mysqluseradd -r -g mysql mysqlpasswd mysqlchown -R mysql:mysql /usr/local/mysql/chown -R mysql /usr/local/mysql/datachown -R root /usr/local/mysqlcd /usr/local/mysql/bin初始化数据库配置（注意会生成随机密码）./mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data/ --initialize7.启动数据库mysql -hlocalhost -uroot -p--如果出现：-bash: mysql: command not found--就执行： # ln -s /usr/local/mysql/bin/mysql /usr/bin --没有出现就不用执行/etc/init.d/mysql startservice mysqld restart配置mysql自动启动chmod 755 /etc/init.d/mysqlchkconfig --add mysqlchkconfig --level 345 mysql on更改配置使其能远程连接--修改密码mysql> set password=password('root');--设置root账户的host地址（修改了才可以远程连接）mysql>grant all privileges on . to 'root'@'%' identified by 'root';mysql>flush privileges;10.配置文件[client]port = 3306socket = /home/mysql/mysql_data/mysql-5.7-01/mysql.sockdefault-character-set = utf8[mysqld]port = 3306socket = /home/mysql/mysql_data/mysql-5.7-01/mysql.sockbasedir = /home/mysql/mysql_client/mysql-5.7-01datadir = /home/mysql/mysql_data/mysql-5.7-01pid-file = /home/mysql/mysql_data/mysql-5.7-01/mysql/mysql.piduser = mysqlbind-address = 0.0.0.0server-id = 1init-connect = 'SET NAMES utf8'character-set-server = utf8back_log = 300max_connections = 1000max_connect_errors = 6000open_files_limit = 65535table_open_cache = 128max_allowed_packet = 4Mbinlog_cache_size = 1Mmax_heap_table_size = 8Mtmp_table_size = 16Mread_buffer_size = 2Mread_rnd_buffer_size = 8Msort_buffer_size = 8Mjoin_buffer_size = 8Mkey_buffer_size = 4Mthread_cache_size = 8query_cache_type = 1query_cache_size = 8Mquery_cache_limit = 2Mft_min_word_len = 4log_bin = /home/mysql/mysql_logs/mysql-5.7-01/mysql-binbinlog_format = mixedexpire_logs_days = 30log_error = /home/mysql/mysql_logs/mysql-5.7-01/mysql-error.logslow_query_log = 1long_query_time = 1slow_query_log_file = /home/mysql/mysql_logs/mysql-5.7-01/mysql-slow.logperformance_schema = 0explicit_defaults_for_timestampskip-external-lockingdefault_storage_engine = InnoDBinnodb_file_per_table = 1innodb_open_files = 500innodb_buffer_pool_size = 64Minnodb_write_io_threads = 4innodb_read_io_threads = 4innodb_thread_concurrency = 0innodb_purge_threads = 1innodb_flush_log_at_trx_commit = 2innodb_log_buffer_size = 2Minnodb_log_file_size = 32Minnodb_log_files_in_group = 3innodb_max_dirty_pages_pct = 90innodb_lock_wait_timeout = 120bulk_insert_buffer_size = 8Mmyisam_sort_buffer_size = 8Mmyisam_max_sort_file_size = 10Gmyisam_repair_threads = 1interactive_timeout = 28800wait_timeout = 28800[mysqldump]quickmax_allowed_packet = 16M[myisamchk]key_buffer_size = 8Msort_buffer_size = 8Mread_buffer = 4Mwrite_buffer = 4M