#本文是兼容mysql多实例安装的，多实例安装只需要本文的3306 全部替换即可。 日志文件名字根据自己需求更改。
创建目录和设置权限：
mkdir -p /data/mysql3306/data/
mkdir -p /data/mysql3306/log/
mkdir -p /data/mysql3306/tmp/
chown -R mysql.mysql /data/mysql3306/
初始化数据库：
/usr/local/mysql/scripts/mysql_install_db --defaults-file=/etc/mysql/my3306.cnf
--basedir=/usr/local/mysql --datadir=/data1/mysql3306/data --user=mysql
启动数据库：
/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/mysql/my3306.cnf
--ledir=/usr/local/mysql/bin/ >/dev/null &
mysql5.6 参考配置文件：
cat /etc/mysql/my3306.cnf
#this is a config file for MySQL 5.6.10
[client]
port = 3306
socket = /tmp/mysql3306.sock
default-character-set=utf8
[mysqld]
federated
transaction-isolation = READ-COMMITTED
default_storage_engine = Innodb
#sql_mode=STRICT_TRANS_TABLES
explicit_defaults_for_timestamp=true
# General variables
user = mysql
port = 3306
socket = /tmp/mysql3306.sock
pid-file = /data/mysql3306/mysqld.pid
#basedir = /usr/local/mysql
datadir = /data/mysql3306
general_log=0
general_log_file=/data/mysql3306/logs/otherlog/general.log
log-error = /data/mysql3306/logs/otherlog/error.log
slow_query_log=1
long_query_time = 0.5
slow_query_log_file = /data/mysql3306/logs/otherlog/slow-queries.log
log-bin = /data/mysql3306/logs/binlog/2241.log
binlog_format = ROW
expire_logs_days =10
max_connections = 5000
max_user_connections = 3000
max_connect_errors = 100000
character_set_server = utf8
collation_server = utf8_general_ci
log_bin_trust_function_creators=1
init-connect = 'set names utf8'
wait_timeout = 300
innodb_io_capacity = 1500
#########replacationsetup ###############################
#master-master
#auto_increment_increment=2
#auto_increment_offset=1
server-id = 2413306
#read_only=true
log-slave-updates=true
relay_log = /data/mysql3306/logs/relaylog/100132.log
sync_binlog =0
binlog_cache_size=2M
innodb_flush_log_at_trx_commit = 2
#skip-slave-start
skip-name-resolve
#slave-skip-errors = 1032,1062
########replicate_do_db ######
#replicate-do-db = Commodity
#replicate-do-db = m_gis
#replicate-do-db = mall
#replicate-do-db = mqlog
#replicate-do-db = wms_doc
#######replicate_ignore_db ###
#replicate_ignore_db = mysql
#replicate_ignore_db = Bi
#replicate_ignore_db = Com
#replicate_ignore_db = information_schema
#replicate_ignore_db = m_gis
#replicate_ignore_db = mall
#replicate_ignore_db = mqlog
#replicate_ignore_db = performance_schema
#replicate_ignore_db = procurement
#replicate_ignore_db = sbtest
#replicate_ignore_db = test
####session buffer size
sort_buffer_size = 8m
read_buffer_size = 8M
read_rnd_buffer_size = 8m
thread_stack=512K
join_buffer_size = 8m
#
max_allowed_packet = 512M
max_heap_table_size = 256M
tmp_table_size = 128M
bulk_insert_buffer_size = 64M
myisam-recover = BACKUP
key_buffer_size = 1024M
innodb_buffer_pool_size = 5G
innodb_additional_mem_pool_size = 64M
innodb_log_file_size = 1024M
innodb_log_buffer_size = 8M
innodb_log_files_in_group = 3
innodb_file_per_table = 1
innodb_buffer_pool_instances = 8
innodb_data_file_path = ibdata1:512M:autoextend
innodb_rollback_on_timeout
log_warnings
lower_case_table_names=0
###wsrep begin
wsrep_on=on
binlog_format=ROW
default-storage-engine=innodb
innodb_autoinc_lock_mode=2
bind-address=10.2.2.41
wsrep_provider=/usr/local/mariadb-galera-10.0.22-linux-x86_64/lib/libgalera_smm.so
wsrep_cluster_name="cluster_stage2"
wsrep_cluster_address="gcomm://10.2.2.41,10.2.2.42"
wsrep_slave_threads=64
wsrep_certify_nonPK=1
wsrep_max_ws_rows=131072
wsrep_max_ws_size=1073741824
wsrep_debug=0
wsrep_convert_LOCK_to_trx=0
wsrep_retry_autocommit=1
wsrep_auto_increment_control=1
wsrep_drupal_282555_workaround=0
wsrep_causal_reads=1
wsrep_notify_cmd=
wsrep_sst_method=xtrabackup-v2
wsrep_sst_auth=rsync_user:rsync_password
wsrep_provider_options="base_port=7654"
[myisamchk]
key_buffer_size = 1024M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout