Server Command Options • --log-short-format • --log-tc= file_name • --log-tc-size= size • --memlock 745 --memlock  works on systems that support the  mlockall()  system call; this includes Solaris, most Linux distributions that use a 2.4 or higher kernel, and perhaps other Unix systems. On Linux systems, Lock the  mysqld  process in memory. This option might help if you have a problem where the operating system is causing  mysqld  to swap to disk. The size in bytes of the memory-mapped transaction coordinator log. The default and minimum values are 6 times the page size, and the value must be a multiple of the page size. The name of the memory-mapped transaction coordinator log file (for XA transactions that affect multiple storage engines when the binary log is disabled). The default name is  tc.log . The file is created under the data directory if not given as a full path name. This option is unused. Log less information to the slow query log, if it has been activated. Command-Line Format --log-short-format[={OFF|ON}] Type Boolean Default Value OFF Command-Line Format --log-tc=file_name Type File name Default Value tc.log Command-Line Format --log-tc-size=# Type Integer Default Value 6 * page size Minimum Value 6 * page size Maximum Value (64-bit platforms) 18446744073709551615 Maximum Value (32-bit platforms) 4294967295 Command-Line Format --memlock[={OFF|ON}] Type Boolean Default Value OFF