Upgrade centos7 mysql5.5 to mysql5.7 non RPM in the form of tar package

1. demand

install DataSphereStudio, Requirements in the document mysql5.5+, Measure the of the machine 5.5.47 Can't install , Reason reference Last blog
Need to put mysql Upgrade to 5.7 edition .
Before the machine, the compressed package was installed directly mysql5.5,yum update You can't upgrade . So use the compressed package to upgrade

2. step

-1. Stop mysql service

serivce mysqld stop

0. download 5.7 Compressed package ,centos7 Next linux General purpose is OK https://dev.mysql.com/downloads/mysql/5.7.html#downloads
   

1. Before backup 5.5 The library in the library ,dump There are many ways to do this, so I won't make a fool of myself

2. decompression 5.7, Before my mysql5.5 The name of the folder is mysql, The name was changed to... For the sake of distinction mysql55.5.7 The unzipped folder is renamed mysql. In this 5.7 Renamed mysql New under folder data Folder .

3. Get into 5.7 Of bin Folder , Carry out orders ,basedir Change to yourself mysql The path of

bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --dat/mysql/data/

4. mysql5.7 An initialization password is generated ,cat to glance at

cat /root/.mysql_secret

5. mysql -u root -p Sign in , The password is from the previous step
   

6. Use the command to cut the library , Prompt error: you must reset the password to alter The way

ALTER USER USER() IDENTIFIED BY ‘a’;

7. Add remote access , Remember to restart mysql

• use mysql;
• update user set host = ‘%’ where user = ‘root’;

dbeaver Link test succeeded ！

3. Reference resources

https://www.jb51.net/article/136660.htm