1 # Example MySQL config file for medium systems.
3 # This is for a system with little memory (32M - 64M) where MySQL plays
4 # an important part, or systems up to 128M where MySQL is used together with
5 # other programs (such as a web server)
7 # MySQL programs look for option files in a set of
8 # locations which depend on the deployment platform.
9 # You can copy this option file to one of those
10 # locations. For information about these locations, see:
11 # http://dev.mysql.com/doc/mysql/en/option-files.html
13 # In this file, you can use all long options that a program supports.
14 # If you want to know which options a program supports, run the program
15 # with the "--help" option.
17 # The following options will be passed to all MySQL clients
19 #password = your_password
21 socket = /tmp/percona_server57.sock
23 # Here follows entries for some specific programs
28 socket = /tmp/percona_server57.sock
31 max_allowed_packet = 1M
33 sort_buffer_size = 512K
34 net_buffer_length = 8K
35 read_buffer_size = 256K
36 read_rnd_buffer_size = 512K
37 myisam_sort_buffer_size = 8M
39 # Don't listen on a TCP/IP port at all. This can be a security enhancement,
40 # if all processes that need to connect to mysqld run on the same host.
41 # All interaction with mysqld must be made via Unix sockets or named pipes.
42 # Note that using this option without enabling named pipes on Windows
43 # (via the "enable-named-pipe" option) will render mysqld useless!
47 # Replication Master Server (default)
48 # binary logging is required for replication
51 # binary logging format - mixed recommended
54 # required unique id between 1 and 2^32 - 1
55 # defaults to 1 if master-host is not set
56 # but will not function as a master if omitted
59 # Replication Slave (comment out master section to use this)
61 # To configure this host as a replication slave, you can choose between
64 # 1) Use the CHANGE MASTER TO command (fully described in our manual) -
67 # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
68 # MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
70 # where you replace <host>, <user>, <password> by quoted strings and
71 # <port> by the master's port number (3306 by default).
75 # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
76 # MASTER_USER='joe', MASTER_PASSWORD='secret';
80 # 2) Set the variables below. However, in case you choose this method, then
81 # start replication for the first time (even unsuccessfully, for example
82 # if you mistyped the password in master-password and the slave fails to
83 # connect), the slave will create a master.info file, and any later
84 # change in this file to the variables' values below will be ignored and
85 # overridden by the content of the master.info file, unless you shutdown
86 # the slave server, delete master.info and restart the slaver server.
87 # For that reason, you may want to leave the lines below untouched
88 # (commented) and instead use CHANGE MASTER TO (see above)
90 # required unique id between 2 and 2^32 - 1
91 # (and different from the master)
92 # defaults to 2 if master-host is set
93 # but will not function as a slave if omitted
96 # The replication master for this slave - required
97 #master-host = <hostname>
99 # The username the slave will use for authentication when connecting
100 # to the master - required
101 #master-user = <username>
103 # The password the slave will authenticate with when connecting to
104 # the master - required
105 #master-password = <password>
107 # The port the master is listening on.
108 # optional - defaults to 3306
109 #master-port = <port>
111 # binary logging - not required for slaves, but recommended
114 # Uncomment the following if you are using InnoDB tables
115 #innodb_data_home_dir = /var/percona-server/5.7/data
116 #innodb_data_file_path = ibdata1:10M:autoextend
117 #innodb_log_group_home_dir = /var/percona-server/5.7/data
118 # You can set .._buffer_pool_size up to 50 - 80 %
119 # of RAM but beware of setting memory usage too high
120 #innodb_buffer_pool_size = 16M
121 #innodb_additional_mem_pool_size = 2M
122 # Set .._log_file_size to 25 % of buffer pool size
123 #innodb_log_file_size = 5M
124 #innodb_log_buffer_size = 8M
125 #innodb_flush_log_at_trx_commit = 1
126 #innodb_lock_wait_timeout = 50
128 explicit_defaults_for_timestamp = 1
132 max_allowed_packet = 16M
136 # Remove the next comment character if you are not familiar with SQL
140 key_buffer_size = 20M
141 sort_buffer_size = 20M