如有特殊需求需要编译安装MySQL请看编译安装MySQL5.7
准备工作
卸载系统中的MySQL或mariadb
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| rpm -qa | grep mysql rpm -qa | grep mariadb yum remove xxx
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下载二进制安装包
MySQL官网
选择操作系统为 Linux-Generic
选择下载文件名为:mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz
当然也可以用wget直接下载
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| wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz
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创建用户
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| useradd -M -s /sbin/nologin -r mysql
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安装依赖包
为了避免执行mysql命令报错ibncurses.so.5
或者libnuma.so.1
找不到
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| yum install -y ncurses-devel numactl-libs
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| apt install -y libncurses5
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设置安装路径
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| export BASE_DIR="/usr/local/mysql" export DATA_DIR="/data/mysql"
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解压安装包
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| tar -xf mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz -C /usr/local/ ln -s ${BASE_DIR}-5.7.39-linux-glibc2.12-x86_64/ ${BASE_DIR}
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初始化数据库
创建数据保存目录
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| mkdir -p ${DATA_DIR}/{binlog,data,logs,redolog,relaylog,tmp,undolog} mkdir -p ${BASE_DIR}/etc chown -R mysql.mysql ${DATA_DIR} touch ${DATA_DIR}/logs/error_mysqld.log chown -R mysql.mysql ${DATA_DIR}/logs/error_mysqld.log chown -R mysql.mysql ${BASE_DIR} chown -R mysql.mysql ${BASE_DIR}-5.7.39-linux-glibc2.12-x86_64/
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initialize
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| ${BASE_DIR}/bin/mysqld --initialize --user=mysql --basedir=${BASE_DIR} --datadir=${DATA_DIR}/data
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配置文件与服务
创建最小化配置文件
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| cat > ${BASE_DIR}/etc/my.cnf <<-EOF ## MySQL 5.7 Configuration File
[mysqld]
## General user = mysql bind_address = 0.0.0.0 port = 3306 basedir = ${BASE_DIR}/ datadir = ${DATA_DIR}/data tmpdir = ${DATA_DIR}/tmp socket = ${DATA_DIR}/logs/mysql.sock pid-file = ${DATA_DIR}/logs/mysqld.pid
character_set_server = utf8
skip-symbolic-links skip_name_resolve = ON skip_external_locking = ON
performance_schema = ON # default ON performance-schema-instrument = 'memory/%=ON' #lower_case_table_names = 0 # default 0
### Storage Engines default_storage_engine = InnoDB
## InnoDB innodb_log_group_home_dir = ${DATA_DIR}/redolog/ innodb_log_file_size = 256M innodb_log_files_in_group = 2 innodb_log_buffer_size = 16M innodb_rollback_segments = 128 # defautl 128 innodb_undo_directory = ${DATA_DIR}/undolog/ innodb_open_files = 4000 innodb_thread_concurrency = 32 innodb_flush_log_at_trx_commit = 1 innodb_flush_log_at_timeout = 1 # defautl 1, when innodb_flush_log_at_trx_commit = 0 or 2 innodb_purge_threads = 4 innodb_print_all_deadlocks = ON innodb_max_dirty_pages_pct = 70 innodb_lock_wait_timeout = 50 innodb_flush_method = O_DIRECT innodb_old_blocks_time = 1000 # since 5.6.6 default 1000 innodb_io_capacity = 600 # default 200 innodb_io_capacity_max = 2000 # default 2000 innodb_lru_scan_depth = 1024 # default 1024 innodb_read_io_threads = 8 innodb_write_io_threads = 8 innodb_buffer_pool_load_at_startup = ON innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_filename = ib_buffer_pool # default ib_buffer_pool innodb_sort_buffer_size = 64M # default 1M , 64K - 64M , for change index
innodb_buffer_pool_dump_pct = 40 innodb_page_cleaners = 16 innodb_undo_log_truncate = ON innodb_max_undo_log_size = 2G innodb_purge_rseg_truncate_frequency = 128
## Gtid #gtid_mode = ON #enforce_gtid_consistency = ON #binlog_gtid_simple_recovery = 1
## Replication server_id = 101 log_bin = ${DATA_DIR}/binlog/mysql_bin expire_logs_days = 7 binlog_format = ROW binlog_row_image = noblob # default full #innodb_autoinc_lock_mode = 2 # default 1 binlog_rows_query_log_events = 1 max_binlog_size = 500M binlog_cache_size = 1M sync_binlog = 1 master_info_repository = TABLE relay_log_info_repository = TABLE skip-slave-start = 1 relay_log = ${DATA_DIR}/relaylog/relay_log max_relay_log_size = 500M # default 0, use max_binlog_size log_slave_updates = ON # default OFF slave_transaction_retries = 128
## MTS relay_log_recovery = 1
## Logging log_output = FILE slow_query_log = ON slow_query_log_file = ${DATA_DIR}/logs/slow_mysqld.log log_queries_not_using_indexes = OFF # default OFF log_throttle_queries_not_using_indexes = 10 # default 0 min_examined_row_limit = 0 # default 0 log_slow_admin_statements = ON log_slow_slave_statements = ON long_query_time = 1 #log-short-format = 0 log_error = ${DATA_DIR}/logs/error_mysqld.log general_log = OFF general_log_file = ${DATA_DIR}/logs/general_mysqld.log log_timestamps = system
## Index ft_min_word_len = 4
[mysqld_safe] open_files_limit = 65535
[mysql] no_auto_rehash prompt = "MySQL [\\d] > "
[mysqldump] quick max_allowed_packet = 256M
[mysqlhotcopy] interactive_timeout
[client] socket = ${DATA_DIR}/logs/mysql.sock
EOF
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做软链接
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| ln -s ${BASE_DIR}/etc/my.cnf /etc/my.cnf
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生成systemd配置
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| cat > /usr/lib/systemd/system/mysql.service <<-EOF [Unit] Description=MySQL Server Documentation=man:mysqld(8) Documentation=https://dev.mysql.com/doc/refman/en/using-systemd.html After=network.target After=syslog.target [Install] WantedBy=multi-user.target [Service] User=mysql Group=mysql ExecStart=${BASE_DIR}/bin/mysqld --defaults-file=/etc/my.cnf LimitNOFILE = 5000 EOF
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启动服务
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| systemctl enable --now mysql
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优化工作
添加环境变量
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| echo "export PATH=\$PATH:${BASE_DIR}/bin" >> /etc/profile
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修改root密码
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| mysql -uroot -hlocalhost -p
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| alter user 'root'@'localhost' IDENTIFIED BY 'Vb6CAEJqqtcmKndiAkEl'; CREATE USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'Vb6CAEJqqtcmKndiAkEl'; Grant all privileges on *.* to 'root'@'%' with grant option;
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