這篇文章主要介紹了Linux下Centos7安裝Mysql5.7.19的教學詳解,需要的朋友可以參考下
1.下載mysql
#2.選擇原始碼包，通用版點擊下載
#直接下載就可以了，不用登入
3.解壓縮編譯
tar -zxvf mysql-5.7.19.tar.gz cd mysql-5.7.19.tar.gz
建立資料目錄 mkdir -p / data/mysql
先用cmake編譯，沒有這個指令需要先yum安裝
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql/ #这个是编译安装之后的mysql目录所在地，可自行更改 -DMYSQL_DATADIR=/data/mysql/ #这个指向数据目录 -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 #从MySQL 5.7.5开始Boost库是必需安装的
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/ 下面會有一個目錄mysql，這個目錄就是我編譯安裝設定的路徑-
DCMAKE_INSTALL_PREFIX=/usr/local/mysql/
一般為了安全起見，我們都會建立一個mysql使用者和mysql群組，執行下列指令
#添加用户组 groupadd mysql #添加用户mysql 到用户组mysql useradd -g mysql mysql
給予mysql權限
chown -R mysql:mysql mysql #添加用户组 groupadd mysql #添加用户mysql 到用户组mysql useradd -g mysql mysql
給予mysql權限
chown -R mysql:mysql mysql
4.接下來設定啟動向，設定開機啟動
設定/ect/my.cnf，如果沒有my.cnf可自行新建新增, 僅供參考
[client] ort = 3306 ocket = /tmp/mysql.sock default-character-set = utf8mb4 [mysqld] ort = 3306 ocket = /tmp/mysql.sock asedir = /usr/local/mysql datadir = /data/mysql id-file = /data/mysql/mysql.pid user = mysql ind-address = 0.0.0.0 erver-id = 1 init-connect = 'SET NAMES utf8mb4' character-set-server = utf8mb4 #skip-name-resolve #skip-networking ack_log = 300 max_connections = 1000 max_connect_errors = 6000 open_files_limit = 65535 table_open_cache = 128 max_allowed_packet = 4M inlog_cache_size = 1M max_heap_table_size = 8M tmp_table_size = 16M read_buffer_size = 2M read_rnd_buffer_size = 8M ort_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-bi inlog_format = mixed expire_logs_days = 30 log_error = /data/mysql/mysql-error.log low_query_log = 1 long_query_time = 1 low_query_log_file = /data/mysql/mysql-slow.log erformance_schema = 0 explicit_defaults_for_timestam #lower_case_table_names = 1 kip-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 ulk_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 ort_buffer_size = 8M read_buffer = 4M write_buffer = 4M
接下來就執行初始化資料庫語句：
注意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
這一步很重要，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).
如果初始化失敗或報以下錯誤，就需要先清空你的/data/mysql目錄了，因為mysql目錄下面有資料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.2017-08-2913:39:47.241536Z [ERR
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
ervice mysqld start
登入測試
/usr/local/mysql/bin/mysql -uroot -
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；
#假如登入報錯
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
檢查你啟動資料庫成功沒 可執行 ps -ef | grep mysql 看看行程是不是啟動狀態
空密碼不安全所以我們還要設定密碼，下面指令中的\"root\"就是設定密碼區域，我的密碼設定為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;"
接下來再登入測試一次密碼修改成功沒有就完成囉！
總結
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