For homebrew mysql installs where s my cnf

Question

For homebrew mysql installs  where s my cnf  Does it install one

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ps aux   grep mysqld  usr local opt mysql bin mysqld --basedir  usr local opt mysql --datadir  usr local var mysql --plugin-dir  usr local opt mysql lib plugin Drop your my cf file to  usr local opt mysql brew services restart mysql

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For MacOS  High Sierra   MySQL that has been installed with home brew    Increasing the global variables from mysql environment was not successful  So in that case creating of    my cnf is the safest option  Adding variables with  mysqld  will include the changes  Note  if you change with  mysql    the change might not work        lt    my cnf    mysqld    connect timeout   43200   max allowed packet     2048M   net buffer length   512M   Restart the mysql server  and check the variables  y     sql  SELECT   max allowed packet     ----------------------      max allowed packet      ----------------------              1073741824      ----------------------    1 row in set  0 00 sec

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in my system it was   nano  usr local etc my cnf default    as template and  nano  usr local etc my cnf   as working

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Since mysql --help shows a list of files  I find it useful to pipe the result to ls to see which of them exist     mysql --help   grep  my cnf   xargs ls ls   etc my cnf  No such file or directory ls   etc mysql my cnf  No such file or directory ls     my cnf  No such file or directory  usr local etc my cnf   For my  Homebrew installed  MySQL 5 7  it seems the files is on  usr local etc my cnf

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There is no my cnf by default   As such  MySQL starts with all of the default settings   If you want to create your own my cnf to override any defaults  place it at  etc my cnf   Also  you can run mysql --help and look through it for the conf locations listed   Default options are read from the following files in the given order   etc my cnf  etc mysql my cnf  usr etc my cnf    my cnf  The following groups are read  mysql client The following options may be given as the first argument  --print-defaults        Print the program argument list and exit  --no-defaults           Don t read default options from any option file  --defaults-file         Only read default options from the given file    --defaults-extra-file   Read this file after the global files are read    As you can see  there are also some options for bypassing the conf files  or specifying other files to read when you invoke mysql on the command line

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On your shell type my print defaults --help  At the bottom of the result  you should be able to see the file from which the server reads the configurations  It prints something like this   Default options are read from the following files in the given order   etc my cnf  etc mysql my cnf  usr local etc my cnf    my cnf

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I believe the answer is no  Installing one in    my cnf or  usr local etc seems to be the preferred solution

User · Answer

Nothing really helped me - I could not overwrite settings in a  etc my cnf file  So I searched like John suggested https   stackoverflow com a 7974114 717251  sudo  usr libexec locate updatedb   wait a few minutes for it to finish locate my cnf   It found another my cnf in    usr local Cellar mysql 5 6 21 my cnf   changing this file worked for me  Don t forget to restart the launch Agent   launchctl unload   Library LaunchAgents homebrew mxcl mysql plist launchctl load   Library LaunchAgents homebrew mxcl mysql plist     Update   If you have a fairly recent installation of homebrew you should use the brew services commands to restart mysql  use your installed homebrew mysql version  i e  mysql or mysql 5 7    brew services stop mysql brew services start mysql

User · Answer

One way to find out   sudo  usr libexec locate updatedb   wait a few minutes for it to finish locate my cnf

User · Answer

run sudo find   -name my cnf Usually the first result is the correct one  Should be in  usr local etc

User · Answer

The homebrew mysql contains sample configuration files in the installation s support-files folder   ls   brew --prefix mysql  support-files my-    If you need to change the default settings you can use one of these as a starting point   cp   brew --prefix mysql  support-files my-default cnf  usr local etc my cnf   As  rednaw points out  a homebrew install of MySQL will most likely be in  usr local so the my cnf file should not be added to the system  etc folder  so I   ve changed the command to copy the file into  usr local etc   If you are using MariaDB rather than MySQL use the following   cp   brew --prefix mariadb  support-files my-small cnf  usr local etc my cnf

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Server version  8 0 19 Homebrew  macOS Catalina 10 15 5 and installed MySQL via Homebrew  Found this file here    usr local etc my cnf   This solution helped

User · Answer

You can find where the my cnf file has been provided by the specific package  e g   brew list mysql   or  mariadb   In addition to verify if that file is read  you can run   sudo fs usage   grep my cnf   which will show you filesystem activity in real-time related to that file

User · Answer

In case of Homebrew  mysql would also look for my cnf in it s Cellar directory  for example    usr local Cellar mysql 5 7 21 my cnf   For the case one prefers to keep the config close to the binaries - create my cnf here if it s missing   Restart mysql after change   brew services restart mysql

[mysql] For homebrew mysql installs, where's my.cnf?

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