1.下載mysql 網址： https://dev.mysql.com/downloads/mysql/ 2.選擇源碼包，通用版點擊下載 直接下載就可以了，不用登錄 3.解壓編譯 tar -zxvf mysql-5.7.19.tar.gz cd mysql-5.7.19.tar.gz 創建數據目錄 ...
1.下載mysql
網址： https://dev.mysql.com/downloads/mysql/
2.選擇源碼包，通用版點擊下載
直接下載就可以了，不用登錄
3.解壓編譯
tar -zxvf mysql-5.7.19.tar.gz
cd mysql-5.7.19.tar.gz
創建數據目錄 mkdir -p /data/mysql
先用cmake編譯，沒有這個命令需要先yum安裝
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql/ #這個是編譯安裝之後的mysql目錄所在地，可自行更改
-DMYSQL_DATADIR=/data/mysql/ #這個指向數據目錄
-DMYSQL_UNIX_ADDR=/tmp/mysql.sock
-DSYSCONFDIR=/usr/local/mysql-5.7/conf/
-DWITH_MYISAM_STORAGE_ENGINE=1
-DWITH_INNOBASE_STORAGE_ENGINE=1
-DWITH_BLACKHOLE_STORAGE_ENGINE=1
-DWITH_ARCHIVE_STORAGE_ENGINE=1
-DWITH_MEMORY_STORAGE_ENGINE=1
-DWITH_READLINE=1
-DMYSQL_TCP_PORT=3306
-DENABLED_LOCAL_INFILE=1
-DDEFAULT_CHARSET=utf8
-DDEFAULT_COLLATION=utf8_general_ci
-DMYSQL_USER=mysql
-DWITH_SSL=system
-DWITH_ZLIB=system -DDOWNLOAD_BOOST=1 -DWITH_BOOST=/usr/local/boost #從MySQL 5.7.5開始Boost庫是必需安裝的
編譯之後make && make install 漫長的等待....之後就安裝完成了
安裝完成之後路徑/usr/local/ 下麵會有一個目錄 mysql，這個目錄就是我編譯安裝設置的路徑-DCMAKE_INSTALL_PREFIX=/usr/local/mysql/
一般為了安全起見，我們都會創建一個mysql用戶和mysql組，執行以下命令
#添加用戶組
groupadd mysql
#添加用戶mysql 到用戶組mysql
useradd -g mysql mysql
給予mysql許可權
chown -R mysql:mysql mysql
4.接下來配置啟動向，設置開機啟動
- cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
- chmod +x /etc/init.d/mysqld
- chkconfig --add mysqld
- chkconfig mysqld on
配置/ect/my.cnf，如果沒有my.cnf可自行新建添加 , 僅供參考
[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
接下來就執行初始化資料庫語句：
註意 mysql_install_db 已經不再推薦使用了，建議改成 mysqld –initialize 完成實例初始化。
/usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql
這步很重要，如果沒有初始化直接啟動資料庫會報錯
ERROR! The server quit without updating PID file (/data/mysql/mysql.pid).
如果初始化失敗或者報以下錯誤，就需要先清空你的/data/mysql目錄了，因為mysql目錄下麵有數據所以初始化執行中止。
2017-08-29T13:39:47.241469Z 0 [ERROR] --initialize specified but the data directory has files in it. Aborting.
2017-08-29T13:39:47.241536Z 0 [ERROR] Aborting
清空之後再重新初始化
/usr/local/mysql/bin/mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql
接下來可以啟動mysql了
service mysqld start
登錄測試
/usr/local/mysql/bin/mysql -uroot -p
因為初始化--initialize-insecure 是預設沒有密碼的所以密碼不用輸入直接確定就行了；
假如登錄報錯
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
檢查一下你啟動資料庫成功沒 可執行 ps -ef | grep mysql 看看進程是不是啟動狀態
空密碼不安全所以我們還要設置密碼，下麵命令中的\"root\"就是設置密碼區域，我的密碼設置為root，可自行修改
[root@localhost local]# /usr/local/mysql/bin/mysql -e "grant all privileges on *.* to root@'127.0.0.1' identified by \"root\" with grant option;"
[root@localhost local]# /usr/local/mysql/bin/mysql -e "grant all privileges on *.* to root@'localhost' identified by \"root\" with grant option;"
接下來再登錄測試一次密碼修改成功沒有就完成啦！
