MySQL 5.5.35 单机多实例配置详解
# cd src/# cd mysql-5.5.35
# cp support-files/my-small.cnf /data/mysql/etc/my.cnf
# cd /data/mysql/etc/
# vim my.cnf
# This server may run 4+ separate instances. So we use mysqld_multi to manage their services.
default-character-set = utf8
mysqld = /data/mysql/bin/mysqld_safe
mysqladmin = /data/mysql/bin/mysqladmin
log = /data/mysql/log/mysqld_multi.log
user = root
#password =
# This is the general purpose database.
# The locations are default.
# They are left in in case the server is started normally instead of by mysqld_multi.
socket = /data/mysql/run/mysqld.sock
port = 3306
pid-file = /data/mysql/run/mysqld.pid
datadir = /data/mysql/data
lc-messages-dir = /data/mysql/share/english
# These support master - master replication
#auto-increment-increment = 4
#auto-increment-offset = 1# Since it is master 1
log-bin = /data/mysql/binlogs/bin-log-mysqld1
log-bin-index = /data/mysql/binlogs/bin-log-mysqld1.index
#binlog-do-db = # Leave this blank if you want to control it on slave
max_binlog_size = 1024M
# This is exlusively for mysqld2
# It is on 3307 with data directory /data/mysqld/data2
socket = /data/mysql/run/mysqld.sock2
port = 3307
pid-file = /data/mysql/run/mysqld.pid2
datadir = /data/mysql/data2
lc-messages-dir = /data/mysql/share/english
# Disable DNS lookups
#skip-name-resolve
# These support master - slave replication
log-bin = /data/mysql/binlogs/bin-log-mysqld2
log-bin-index = /data/mysql/binlogs/bin-log-mysqld2.index
#binlog-do-db =# Leave this blank if you want to control it on slave
max_binlog_size = 1024M
#>
#relay-log = /data/mysql/log/relay-log-mysqld2
#relay-log-index = /data/mysql/log/relay-log-mysqld2.index
#relay-log-space-limit = 4G
# Slow query log settings
#log-slow-queries = /data/mysql/log/slow-log-mysqld2
#long_query_time = 2
#log-queries-not-using-indexes
# This is exlusively for mysqld3
# It is on 3308 with data directory /data/mysqld/data3
socket = /data/mysql/run/mysqld.sock3
port = 3308
pid-file = /data/mysql/run/mysqld.pid3
datadir = /data/mysql/data3
lc-messages-dir = /data/mysql/share/english
#Disable DNS lookups
#skip-name-resolve
# These support master - slave replication
log-bin = /data/mysql/binlogs/bin-log-mysqld3
log-bin-index = /data/mysql/binlogs/bin-log-mysqld3.index
#binlog-do-db =# Leave this blank if you want to control it on slave
max_binlog_size = 1024M
# This is exlusively for mysqld4
# It is on 3309 with data directory /data/mysqld/data4
socket = /data/mysql/run/mysqld.sock4
port = 3309
pid-file = /data/mysql/run/mysqld.pid4
datadir = /data/mysql/data4
lc-messages-dir = /data/mysql/share/english
# Disable DNS lookups
#skip-name-resolve
# These support master - slave replication
log-bin = /data/mysql/binlogs/bin-log-mysqld4
log-bin-index = /data/mysql/binlogs/bin-log-mysqld4.index
#binlog-do-db =# Leave this blank if you want to control it on slave
max_binlog_size = 1024M
# The rest of the my.cnf is shared
# Here follows entries for some specific programs
# The MySQL server
basedir = /data/mysql
tmpdir = /data/mysql/tmp
socket = /data/mysql/run/mysqld.sock
port = 3306
pid-file = /data/mysql/run/mysqld.pid
datadir = /data/mysql/data
lc-messages-dir = /data/mysql/share/english
skip-external-locking
key_buffer_size = 16K
max_allowed_packet = 1M
table_open_cache = 4
sort_buffer_size = 64K
read_buffer_size = 256K
read_rnd_buffer_size = 256K
net_buffer_length = 2K
thread_stack = 128K
# Increase the max connections
max_connections = 2
# The expiration time for logs, including binlogs
expire_logs_days = 14
# Set the character as utf8
character-set-server = utf8
collation-server = utf8_unicode_ci
# This is usually only needed when setting up chained replication
#log-slave-updates
# Enable this to make replication more resilient against server crashes and restarts
# but can cause higher I/O on the server
#sync_binlog = 1
# The server>
server-id = 1
# Set this to force MySQL to use a particular engine/table-type for new tables
# This setting can still be overridden by specifying the engine explicitly
# in the CREATE TABLE statement
default-storage-engine = INNODB
# Enable Per Table Data for InnoDB to shrink ibdata1
innodb_file_per_table = 1
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /data/mysql/data
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /data/mysql/data
# You can set .._buffer_pool_size up to 50 - 80 % of RAM
# but beware of setting memory usage too high
innodb_buffer_pool_size = 16M
innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool>
innodb_log_file_size = 5M
innodb_log_buffer_size = 8M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
quick
max_allowed_packet = 16M
no-auto-rehash
key_buffer_size = 8M
sort_buffer_size = 8M
interactive-timeout
user = mysql
log-error = /data/mysql/log/mysqld.log
pid-file = /data/mysql/run/mysqld.pid
open-files-limit = 8192
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