3

What is the use of log_slow_verbosity = query_plan parameter in my.cnf ?

I got an error when installing MySQL in my machine because of this parameter.

4

log_slow_verbosity is for MariaDB, not MySQL

Perhaps your OS has MariaDB repos installed instead of MySQL. If you downloaded MySQL and installed it, mysqld encountered an already existing my.cnf that was for MariaDB.

  • I have been removed my.cnf file before installing mysql but still i got an error then after i removed log_slow_verbosity = query_plan from my.cnf and installed MySQL.Now MySQL running perfectly. – Ravi Kumar Jun 10 '15 at 12:41
  • This variable was added to the my,cnf file during a recent update of software on Ubuntu 18.04. Removing the line from my.cnf fixed this. – crafter Jul 31 '19 at 7:21

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