Mysql
在 Centos7 上安裝 mysql 客戶端而不是伺服器
我試圖在 centos 7 伺服器上安裝一個 mysql 客戶端。
我有一個需要連接的遠端 mysql 伺服器，我不想安裝 mysql 伺服器。
從 Centos 7 開始，它將預設為 mariadb，這很好
[root@server ~]# cat /etc/centos-release CentOS Linux release 7.7.1908 (Core) [root@server ~]# yum install mysql Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.umd.edu * epel: mirror.math.princeton.edu * extras: mirror.atlanticmetro.net * updates: packages.oit.ncsu.edu Resolving Dependencies --> Running transaction check ---> Package mariadb.x86_64 1:5.5.64-1.el7 will be installed --> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.64-1.el7 for package: 1:mariadb-5.5.64-1.el7.x86_64 --> Running transaction check ---> Package mariadb-libs.x86_64 1:5.5.64-1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================================================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================================================================================================================= Installing: mariadb x86_64 1:5.5.64-1.el7 base 8.7 M Installing for dependencies: mariadb-libs x86_64 1:5.5.64-1.el7 base 759 k Transaction Summary ============================================================================================================================================================================================================================================= Install 1 Package (+1 Dependent package) Total download size: 9.5 M Installed size: 53 M Is this ok [y/d/N]: y Downloading packages: (1/2): mariadb-libs-5.5.64-1.el7.x86_64.rpm | 759 kB 00:00:00 (2/2): mariadb-5.5.64-1.el7.x86_64.rpm | 8.7 MB 00:00:03 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 2.4 MB/s | 9.5 MB 00:00:03 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : 1:mariadb-libs-5.5.64-1.el7.x86_64 1/2 Installing : 1:mariadb-5.5.64-1.el7.x86_64 2/2 Verifying : 1:mariadb-libs-5.5.64-1.el7.x86_64 1/2 Verifying : 1:mariadb-5.5.64-1.el7.x86_64 2/2 Installed: mariadb.x86_64 1:5.5.64-1.el7 Dependency Installed: mariadb-libs.x86_64 1:5.5.64-1.el7 Complete!當我嘗試執行 mysql 我得到
[root@server ~]# mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)我不知道如何啟動它
[root@server ~]# systemctl start mysql Failed to start mysql.service: Unit not found. [root@server ~]# systemctl start mysqld Failed to start mysqld.service: Unit not found. [root@server ~]# systemctl start mariadb Failed to start mariadb.service: Unit not found. [root@server ~]#
您的 mysql 客戶端目前正在嘗試連接到在本地電腦上執行的伺服器（該伺服器不存在）。
您需要在命令行上為您嘗試連接的伺服器指定連接字元串（包括使用者、主機名、埠等）。
$ mysql --help提供 CLI 選項的完整列表。您需要特別注意的是：
-D / --database-h / --host-u / --user-P / --port