# Example mysql config file for very large systems. [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld_safe mysqladmin = /usr/local/mysql/bin/mysqladmin user = multi_admin password = multipass log = /mysqldata/mysqld_multi.log [mysqld1] bind-address=192.168.0.12 socket = /tmp/mysql-main.sock port = 13306 pid-file = /mysqldata/mainmysqldata/main.pid log-error = /mysqldata/mainmysqldata/main.err datadir = /mysqldata/mainmysqldata user = mysql1 max_connections = 500 max_connect_errors = 1000 interactive_timeout = 300 wait_timeout = 300 key_buffer = 384M max_allowed_packet = 80M table_cache = 512 sort_buffer_size = 2M read_buffer_size = 2M myisam_sort_buffer_size = 64M thread_cache = 8 query_cache_size = 128M query_cache_limit= 4M tmp_table_size = 512M [mysqld2] bind-address=192.168.0.12 socket = /tmp/mysql-dev2.sock port = 23306 pid-file = /mysqldata/dev2mysqldata/dev2.pid log-error = /mysqldata/dev2mysqldata/dev2.err datadir = /mysqldata/dev2mysqldata user = mysql2 max_connections = 800 max_connect_errors = 1000 interactive_timeout = 300 wait_timeout = 300 key_buffer = 384M max_allowed_packet = 80M table_cache = 512 sort_buffer_size = 2M read_buffer_size = 2M myisam_sort_buffer_size = 64M thread_cache = 8 query_cache_size = 128M query_cache_limit= 4M # # This is for large system with memory of 1G-2G where the system runs mainly # MySQL. # # You can copy this file to # /etc/my.cnf to set global options, # mysql-data-dir/my.cnf to set server-specific options (in this # installation this directory is /usr/local/mysql4.0.18/var) or # ~/.my.cnf to set user-specific options. # # One can in this file use all long options that the program supports. # If you want to know which options a program support, run the program # with --help option. # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] bind-address=192.168.0.14 port = 3306 socket = /tmp/mysql-db.sock skip-locking #key_buffer = 384M #max_allowed_packet = 1M #table_cache = 512 #sort_buffer_size = 2M #read_buffer_size = 2M #myisam_sort_buffer_size = 64M #thread_cache = 8 #query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 4 datadir = /mnt/sdb7/77dbmysqldata pid-file = /mnt/sdb7/77dbmysqldata/tongjidb.pid log-error= /mnt/sdb7/77dbmysqldata/tongjidb.err interactive_timeout = 300 wait_timeout = 300 # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # #skip-networking # Replication Master Server (default) # binary logging is required for replication #log-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted #server-id = 2 # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=, # MASTER_USER=, MASTER_PASSWORD= ; # # where you replace , , by quoted strings and # by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # change in this file to the variables' values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = # # The username the slave will use for authentication when connecting # to the master - required #master-user = # # The password the slave will authenticate with when connecting to # the master - required #master-password = # # The port the master is listening on. # optional - defaults to 3306 #master-port = # # binary logging - not required for slaves, but recommended #log-bin # Point the following paths to different dedicated disks #tmpdir = /tmp/ #log-update = /path-to-dedicated-directory/hostname # Uncomment the following if you are using BDB tables #bdb_cache_size = 384M #bdb_max_lock = 100000 # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /usr/local/mysql4.0.18/var/ #innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend #innodb_log_group_home_dir = /usr/local/mysql4.0.18/var/ #innodb_log_arch_dir = /usr/local/mysql4.0.18/var/ # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 384M #innodb_additional_mem_pool_size = 20M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 100M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [isamchk] key_buffer = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [myisamchk] key_buffer = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout