linux - Is mysql started like this?

Question

Why can’t I see the master process process? Is it not started successfully?

Answer 1

$ sudo netstat -nlpt | grep mysql 
tcp6       0      0 :::3306         :::*         LISTEN      5525/mysqld 

Check whether port 3306 is already listening, and the startup process is mysqld.

Answer 2

Only if port 3306 is open and you can log in can the startup be successful

Answer 3

Does the test user have permission to start mysql?
It should have failed to start successfully.