mysqld_safe — MySQL Server Startup Script [mysqld_safe] malloc-lib=tcmalloc To use a specific  tcmalloc  library, specify its full path name. Example: [mysqld_safe] malloc-lib=/opt/lib/libtcmalloc_minimal.so The name of the server program (in the  ledir  directory) that you want to start. This option is needed if you use the MySQL binary distribution but have the data directory outside of the binary distribution. If mysqld_safe  cannot find the server, use the  --ledir  option to indicate the path name to the directory where the server is located. This option is accepted only on the command line, not in option files. On platforms that use systemd, the value can be specified in the value of  MYSQLD_OPTS . See Section 2.5.9, “Managing MySQL Server with systemd” . This option is similar to the  --mysqld  option, but you specify only the suffix for the server program name. The base name is assumed to be  mysqld . For example, if you use  --mysqld- version=debug ,  mysqld_safe  starts the  mysqld-debug  program in the  ledir  directory. If the argument to  --mysqld-version  is empty,  mysqld_safe  uses  mysqld  in the  ledir  directory. This option is accepted only on the command line, not in option files. On platforms that use systemd, the value can be specified in the value of  MYSQLD_OPTS . See Section 2.5.9, “Managing MySQL Server with systemd” . Use the  nice  program to set the server’s scheduling priority to the given value. Do not read any option files. If program startup fails due to reading unknown options from an option file, --no-defaults  can be used to prevent them from being read. This must be the first option on the command line if it is used. For additional information about this and other option-file options, see Section 4.2.2.3, “Command-Line Options that Affect Option-File Handling” . The number of files that  mysqld  should be able to open. The option value is passed to  ulimit -n . You must start  mysqld_safe  as  root  for this to function properly. The path name that  mysqld  should use for its process ID file. The path name of the plugin directory. 386 • --plugin-dir= dir_name • --pid-file= file_name • --open-files-limit= count • --no-defaults • --nice= priority • --mysqld-version= suffix • --mysqld= prog_name Note