# rpm -Uvh mysql-community-client-5.7.29-1.el7.x86_64.rpm mysql-community-common-5.7.29-1.el7.x86_64.rpm mysql-community-devel-5.7.29-1.el7.x86_64.rpm mysql-community-embedded-5.7.29-1.el7.x86_64.rpm mysql-community-embedded-compat-5.7.29-1.el7.x86_64.rpm mysql-community-embedded-devel-5.7.29-1.el7.x86_64.rpm mysql-community-libs-5.7.29-1.el7.x86_64.rpm mysql-community-libs-compat-5.7.29-1.el7.x86_64.rpm mysql-community-server-5.7.29-1.el7.x86_64.rpm mysql-community-test-5.7.29-1.el7.x86_64.rpm
warning: mysql-community-client-5.7.29-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-common-5.7.29-1.e################################# [ 10%]
   2:mysql-community-libs-5.7.29-1.el7################################# [ 20%]
   3:mysql-community-client-5.7.29-1.e################################# [ 30%]
   4:mysql-community-server-5.7.29-1.e################################# [ 40%]
   5:mysql-community-devel-5.7.29-1.el################################# [ 50%]
   6:mysql-community-embedded-5.7.29-1################################# [ 60%]
   7:mysql-community-embedded-devel-5.################################# [ 70%]
   8:mysql-community-test-5.7.29-1.el7################################# [ 80%]
   9:mysql-community-libs-compat-5.7.2################################# [ 90%]
  10:mysql-community-embedded-compat-5################################# [100%]
# systemctl status mysqld
¡´ mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: inactive (dead)
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
10:08
# systemctl start mysqld
# systemctl status mysqld
¡´ mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2020-03-23 10:33:00 HKT; 20min ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 9150 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
  Process: 5135 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 9153 (mysqld)
    Tasks: 28
   CGroup: /system.slice/mysqld.service
           ¢|¢w9153 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mys...

Mar 23 10:07:35 jira87x systemd[1]: Starting MySQL Server...
Mar 23 10:33:00 jira87x systemd[1]: Started MySQL Server.

*** First time mysqld started by 26 mins as shown above ***

*** Then I stopped it and started it again ***
# systemctl status mysqld
¡´ mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: inactive (dead) since Mon 2020-03-23 10:57:17 HKT; 2s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 9150 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
  Process: 5135 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 9153 (code=exited, status=0/SUCCESS)

Mar 23 10:07:35 jira87x systemd[1]: Starting MySQL Server...
Mar 23 10:33:00 jira87x systemd[1]: Started MySQL Server.
Mar 23 10:57:16 jira87x systemd[1]: Stopping MySQL Server...
Mar 23 10:57:17 jira87x systemd[1]: Stopped MySQL Server.

# systemctl status mysqld
¡´ mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2020-03-23 11:25:57 HKT; 7min ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 14911 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
  Process: 11501 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 14914 (mysqld)
    Tasks: 27
   CGroup: /system.slice/mysqld.service
           ¢|¢w14914 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid

Mar 23 10:57:38 jira87x systemd[1]: Starting MySQL Server...
Mar 23 11:25:57 jira87x systemd[1]: Started MySQL Server.

*** Second time mysqld started by 28 mins as shown above ***

# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.29

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

*** END ***