Shulou(Shulou.com)06/02 Report--

Linux system version: CentOS7.4

MySQL version: 5.7.28

There are RPM package, binary package and source package 3 in Linux platform. This article mainly takes RPM package as an example to introduce how to install MySQL under Linux platform.

Download address:

Https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz

The specific installation steps are as follows:

(1) Uninstall mariadb first, otherwise it will conflict with the libraries needed to install mysql:

[root@localhost ~] # rpm-qa | grep mariadbmariadb-libs-5.5.56-2.el7.x86_64 [root@localhost ~] # rpm-e-nodeps mariadb-libs-5.5.56-2.el7.x86_64

(2) Log in to the system with root users, add mysql users and groups, and install the database under this user:

[root@localhost ~] # groupadd mysql [root@localhost ~] # useradd-r-g mysql-s / bin/false mysql

(3) prepare the data directory

Using / app/data as an example, logical volumes are recommended

[root@localhost ~] # mkdir-p / app/data [root@localhost ~] # chown mysql.mysql / app/data/ [root@localhost ~] # chmod 750 / app/data

(4) prepare binaries:

[root@localhost ~] # tar xvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz-C / usr/local/root@localhost ~] # cd / usr/local [root@localhost local] # ln-sv mysql-5.7.28-linux-glibc2.12-x86_64 mysql'mysql'-> 'mysql-5.7.28-linux-glibc2.12-x86_64'

(5) initialize MySQL:

[root@localhost] # cd / usr/local/mysql [root@localhost mysql] # bin/mysqld-- initialize-- user=mysql-- basedir=/usr/local/mysql-- datadir=/app/data2019-11-03T09:47:18.263716Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use-- explicit_defaults_for_timestamp server option (see documentation for more details). 2019-11-03T09:47:19.059462Z 0 [Warning] InnoDB: New log files created, LSN=457902019-11-03T09:47:19.140866Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.2019-11-03T09:47:19.207569Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: ed1cd8ec-fe1e-11e9-8c9c-000c29f8617a.2019-11-03T09:47:19.209181Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.2019-11-03T09:47:19.646366Z 0 [Warning] CA certificate ca.pem is self signed.2019-11-03T09:47:20.056792Z 1 [Note] A temporary password is generated for root@localhost:

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