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Mysql5.7版本更新后有很多变化，比如json等，连安装都有变化，他安装必须要BOOST库，不过mysql的官网源码有带boost库的源码和不带boost库的源码两种，因此有两种安装方式，其实都是一样的，仅仅是不带boost库源码的需要单独安装boost，还有后续文章percona-xtrabackup需要用到boost库
下载软件
到usr/local目录下：
cd /usr/local wget http://downloads.sourceforge.net/project/boost/boost/1.59.0/boost_1_59_0.tar.gz wget http://cdn.mysql.com//Downloads/MySQL-5.7/mysql-boost-5.7.11.tar.gz wget http://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.11.tar.gz
安装boost
注:此处如果只为安装mysql其实可以不用安装的，解压就好，到时安装mysql时引用目录，不过percona-xtrabackup需要用到，所以我安装了。
tar xzf boost_1_59_0.tar.gz cd boost_1_59_0 ./bootstrap.sh ./b2 install
不带boost的mysql源码安装
1、安装依赖包
yum -y install gcc gcc-c++ ncurses ncurses-devel cmake
2、添加禁止登陆的mysql用户
groupadd mysql useradd -r -g mysql -s /bin/false mysql
3、编译安装
从MySQL 5.7.5开始Boost库是必需的
mkdir -p /data/mysql tar xzf mysql-5.7.11.tar.gz cd mysql-5.7.11 cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DDOWNLOAD_BOOST=1 -DWITH_BOOST=/usr/local/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 make make install
4、配置开机启动项
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld chmod +x /etc/init.d/mysqld chkconfig --add mysqld chkconfig mysqld on
5、配置/etc/my.cnf 仅供参考，可以不配，用默认的。
cat > /etc/my.cnf << EOF [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 EOF
6、初始化数据
/usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql
注： 之前版本mysql_install_db是在mysql_basedir/script下，5.7放在了mysql_install_db/bin目录下,且已被废弃
“–initialize”会生成一个随机密码(~/.mysql_secret)，而”–initialize-insecure”不会生成密码
–datadir目标目录下不能有数据文件
7、启动数据库
service mysqld start
带boost的mysql源码安装
1、安装依赖包
yum -y install make gcc-c++ cmake bison-devel ncurses-devel bison perl perl-devel perl perl-devel
2、解压到/usr/local目录下
tar -zxvf mysql-boost-5.7.11.tar.gz -C /usr/local
3、创建mysql组和用户
groupadd mysql useradd -r -g mysql -s /bin/false mysql
4、编译mysql
cd /usr/local/mysql-5.7.11/ cmake -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_BOOST=boost make make install
5、把原来的/etc/my.cnf备份
cp /etc/my.cnf /etc/my.cnf.bak rm -f /etc/my.cnf
6、把安装目录用户和组更改为mysql
cd /usr/local/mysql chown -R mysql . chgrp -R mysql .
7、创建一个数据目录
mkdir -p /data/mysql/data/
8、初始化mysql，及开启ssl新功能
bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data
bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data
9、 设为root是为了防止普通用户不小心删除数据库
chown -R root . chown -R mysql /data
10、拷贝配置文件
cp support-files//my-default.cnf /etc/my.cnf cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
11、修改环境变量
vi /etc/profile # 在profile文件末尾增加两行 PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH export PATH # 使PATH搜索路径立即生效： source /etc/profile
12、修改配置文件
vi /etc/my.cnf #修改第19行(取消注释且修改为) datadir = /data/mysql/data/
13、启动
service mysql start