Source Installation Prerequisites. Postinstallation Setup and Testing. Changes in MySQL 8. Preparing Your Installation for Upgrade. Upgrade Troubleshooting. Rebuilding or Repairing Tables or Indexes. Installing ActiveState Perl on Windows.
InnoDB Cluster. InnoDB ReplicaSet. Error Messages and Common Problems. MySQL 8. The server is initialized. An SSL certificate and key files are generated in the data directory. MySQL server as an embedded library with compatibility for applications using version 18 of the library. The source code RPM looks similar to mysql-community To install only the client programs, you can skip installing the MySQL-server package; issue the following command replace yum with zypper for SLES systems :.
A standard installation of MySQL using the RPM packages result in files and resources created under the system directories, shown in the following table.
Table 2. The installation also creates a user named mysql and a group named mysql on the system. MySQL is not automatically started at the end of the installation process. Use the following command to start MySQL:. At the initial start up of the server, the server is initialized if the data directory of the server is empty. It is necessary after installation to start the server, connect as root using the initial random password, and assign a new root password.
Untar RPM Packages 3. Start MySQL service 5. Login to MySQL using temporary password 7. Change the root localhost password 8. Download RPM Packages. Untar RPM Packages. Notice that certain things might work differently on systemd platforms: for example, changing the location of the data directory might cause issues. See Section 2. One exception: if the edition also changes during an upgrade such as community to commercial, or vice-versa , then MySQL server is not restarted.
At the initial start up of the server, the following happens, given that the data directory of the server is empty:. A superuser account 'root' 'localhost' is created. A password for the superuser is set and stored in the error log file. The next step is to log in with the generated, temporary password and set a custom password for the superuser account:.
For some Linux distributions, it might be necessary to increase the limit on number of file descriptors available to mysqld. See Section B. If you have installed packages for MySQL from your Linux distribution's local software repository, it is much preferable to install the new, directly-downloaded packages from Oracle using the package management system of your platform yum , dnf , or zypper , as described above.
The command replaces old packages with new ones to ensure compatibility of old applications with the new installation; for example, the old mysql-libs package is replaced with the mysql-community-libs-compat package, which provides a replacement-compatible client library for applications that were using your older MySQL installation.
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