title: Cannot get Mysql 8.0 to stay open in Mac OS
body: <p>MySQL suddenly cannot keep open.  I tried 
            ps -ef | grep mysql
            sudo kill -9 5211</p>
  
  <p>I tried removing my my.cnf
  I tried creating a new my.cnf as suggested by a previous post</p>
  
  <p>Nothing is working.  mySQL from "System Preference" turns on after I put my password and few seconds later turns off.</p>
  
  <p>Here is the error log:</p>
  
  <pre><code>2019-02-14T01:13:17.285925Z 0 [System] [MY-010116] [Server] /usr/local/Cellar/mysql/8.0.12/bin/mysqld (mysqld 8.0.12) starting as process 11402
  
   2019-02-14T01:13:17.288972Z 0 [Warning] [MY-010159] [Server] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
  
   2019-02-14T01:13:17.317235Z 1 [ERROR] [MY-012592] [InnoDB] InnoDB: Operating system error number 2 in a file operation.
  2019-02-14T01:13:17.317441Z 1 [ERROR] [MY-012593] [InnoDB] InnoDB: The error means the system cannot find the path specified.
  2019-02-14T01:13:17.317548Z 1 [ERROR] [MY-012594] [InnoDB] InnoDB: If you are  installing InnoDB, remember that you must create directories yourself, InnoDB does not create them.
   2019-02-14T01:13:17.317666Z 1 [ERROR] [MY-012646] [InnoDB] InnoDB: File ./ibdata1: 'open' returned OS error 71. Cannot continue operation
   2019-02-14T01:13:17.317798Z 1 [ERROR] [MY-012981] [InnoDB] InnoDB: Cannot continue operation.
   2019-02-14T01:15:15.776723Z 0 [System] [MY-010116] [Server] /usr/local/Cellar/mysql/8.0.12/bin/mysqld (mysqld 8.0.12) starting as process 12646
   2019-02-14T01:15:15.779642Z 0 [Warning] [MY-010159] [Server] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
    2019-02-14T01:15:15.796296Z 1 [ERROR] [MY-012592] [InnoDB] InnoDB: Operating system error number 2 in a file operation.
    2019-02-14T01:15:15.796337Z 1 [ERROR] [MY-012593] [InnoDB] InnoDB: The error means the system cannot find the path specified.
     2019-02-14T01:15:15.796352Z 1 [ERROR] [MY-012594] [InnoDB] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them.
     2019-02-14T01:15:15.796365Z 1 [ERROR] [MY-012646] [InnoDB] InnoDB: File ./ibdata1: 'open' returned OS error 71. Cannot continue operation
     2019-02-14T01:15:15.796380Z 1 [ERROR] [MY-012981] [InnoDB] InnoDB: Cannot continue operation.
  </code></pre>
  
  <p>Here is the error.  I will check what it means.  </p>