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  1. # Example MySQL config file for very large systems.
  2. #
  3. # This is for a large system with memory of 1G-2G where the system runs mainly
  4. # MySQL.
  5. #
  6. # You can copy this file to
  7. # /etc/my.cnf to set global options,
  8. # mysql-data-dir/my.cnf to set server-specific options (in this
  9. # installation this directory is /var/lib/mysql) or
  10. # ~/.my.cnf to set user-specific options.
  11. #
  12. # In this file, you can use all long options that a program supports.
  13. # If you want to know which options a program supports, run the program
  14. # with the "--help" option.
  15.  
  16. # The following options will be passed to all MySQL clients
  17. [client]
  18. #password = your_password
  19. port = 3306
  20. socket = /var/run/mysqld/mysqld.sock
  21.  
  22. # Here follows entries for some specific programs
  23.  
  24. # The MySQL server
  25. [mysqld]
  26. port = 3306
  27. socket = /var/run/mysqld/mysqld.sock
  28. skip-locking
  29. key_buffer_size = 384M
  30. max_allowed_packet = 1024M
  31. table_open_cache = 512
  32. sort_buffer_size = 2M
  33. read_buffer_size = 2M
  34. read_rnd_buffer_size = 8M
  35. myisam_sort_buffer_size = 64M
  36. thread_cache_size = 8
  37. query_cache_size = 32M
  38. # Try number of CPU's*2 for thread_concurrency
  39. thread_concurrency = 8
  40.  
  41. # Don't listen on a TCP/IP port at all. This can be a security enhancement,
  42. # if all processes that need to connect to mysqld run on the same host.
  43. # All interaction with mysqld must be made via Unix sockets or named pipes.
  44. # Note that using this option without enabling named pipes on Windows
  45. # (via the "enable-named-pipe" option) will render mysqld useless!
  46. #
  47. #skip-networking
  48.  
  49. # Replication Master Server (default)
  50. # binary logging is required for replication
  51. log-bin=mysql-bin
  52.  
  53. # required unique id between 1 and 2^32 - 1
  54. # defaults to 1 if master-host is not set
  55. # but will not function as a master if omitted
  56. server-id = 1
  57.  
  58. # Replication Slave (comment out master section to use this)
  59. #
  60. # To configure this host as a replication slave, you can choose between
  61. # two methods :
  62. #
  63. # 1) Use the CHANGE MASTER TO command (fully described in our manual) -
  64. # the syntax is:
  65. #
  66. # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
  67. # MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
  68. #
  69. # where you replace <host>, <user>, <password> by quoted strings and
  70. # <port> by the master's port number (3306 by default).
  71. #
  72. # Example:
  73. #
  74. # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
  75. # MASTER_USER='joe', MASTER_PASSWORD='secret';
  76. #
  77. # OR
  78. #
  79. # 2) Set the variables below. However, in case you choose this method, then
  80. # start replication for the first time (even unsuccessfully, for example
  81. # if you mistyped the password in master-password and the slave fails to
  82. # connect), the slave will create a master.info file, and any later
  83. # change in this file to the variables' values below will be ignored and
  84. # overridden by the content of the master.info file, unless you shutdown
  85. # the slave server, delete master.info and restart the slaver server.
  86. # For that reason, you may want to leave the lines below untouched
  87. # (commented) and instead use CHANGE MASTER TO (see above)
  88. #
  89. # required unique id between 2 and 2^32 - 1
  90. # (and different from the master)
  91. # defaults to 2 if master-host is set
  92. # but will not function as a slave if omitted
  93. #server-id = 2
  94. #
  95. # The replication master for this slave - required
  96. #master-host = <hostname>
  97. #
  98. # The username the slave will use for authentication when connecting
  99. # to the master - required
  100. #master-user = <username>
  101. #
  102. # The password the slave will authenticate with when connecting to
  103. # the master - required
  104. #master-password = <password>
  105. #
  106. # The port the master is listening on.
  107. # optional - defaults to 3306
  108. #master-port = <port>
  109. #
  110. # binary logging - not required for slaves, but recommended
  111. #log-bin=mysql-bin
  112. #
  113. # binary logging format - mixed recommended
  114. #binlog_format=mixed
  115.  
  116. # Point the following paths to different dedicated disks
  117. #tmpdir = /tmp/
  118. #log-update = /path-to-dedicated-directory/hostname
  119.  
  120. # Uncomment the following if you are using InnoDB tables
  121. #innodb_data_home_dir = /var/lib/mysql/
  122. #innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend
  123. #innodb_log_group_home_dir = /var/lib/mysql/
  124. # You can set .._buffer_pool_size up to 50 - 80 %
  125. # of RAM but beware of setting memory usage too high
  126. #innodb_buffer_pool_size = 384M
  127. #innodb_additional_mem_pool_size = 20M
  128. # Set .._log_file_size to 25 % of buffer pool size
  129. #innodb_log_file_size = 100M
  130. #innodb_log_buffer_size = 8M
  131. #innodb_flush_log_at_trx_commit = 1
  132. #innodb_lock_wait_timeout = 50
  133.  
  134. [mysqldump]
  135. quick
  136. max_allowed_packet = 16M
  137.  
  138. [mysql]
  139. no-auto-rehash
  140. # Remove the next comment character if you are not familiar with SQL
  141. #safe-updates
  142.  
  143. [myisamchk]
  144. key_buffer_size = 256M
  145. sort_buffer_size = 256M
  146. read_buffer = 2M
  147. write_buffer = 2M
  148.  
  149. [mysqlhotcopy]
  150. interactive-timeout
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