mysql - How to configure my.cnf in 5.6.17? -

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On the production server (linux machine mysql 5.6.17), I tried c.cf to search for system variables , But My.cnf /etc/my.cnf was not in place. It was in the USR / directory Also in that file only comments are as follows - 

  Remove # major # and most important data Set the quantity of RAM for # # MySQL starts with 70% of total RAM for dedicated server and 10% please tell me my.cnf I can copy and how can I change the variables like -  
  innodb_buffer_pool_size = 200M max_connections = 300     
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 There are several ways in which you can modify the global variable.  
 Its Mary. In the Cf file, add / edit values ​​under the  
  [mysqld]  block;  [mysqld] innodb_buffer_pool_size = 200M max_connections = 300   
 Then restart the  mysqld  daemon to change the change.  
 Run a query  
 You can run the following questions to change the values ​​of those variables, but once the  mysqld  daemon restarts / reboots the server / Etc. will be reset.  
  SET global innodb_buffer_pool_size = 200M; Set global max_connection = 300;   
 You can read more about this here:

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