重点：配置GNR时需要所有的GNR以[
mysqld
xxx]的格式命名，否则会报找到GNR的错误
企业建站必须是能够以充分展现企业形象为主要目的，是企业文化与产品对外扩展宣传的重要窗口，一个合格的网站不仅仅能为公司带来巨大的互联网上的收集和信息发布平台，
成都创新互联面向各种领域：
成都楼梯护栏等
成都网站设计公司、
营销型网站建设解决方案、网站设计等建站排名服务。
准备Mysqld_multi配置文件加入多实例的配置信息
指定GNR启动实例(不要指定MYSQLD这个关键词)
mysqld_multi start 3308
指定端口和SOCK文件关闭实例
mysqladmin -uroot -p123456 -P3307 -S/mydata/data2/mysql.sock shutdown
指定连接实例
mysql -uroot -p123456 -S/mydata/data2/mysql.sock
指定启动实例
mysqld_multi start mysqld3307
如下为多实例的配置文件
[client]
#socket = /mydata/data/mysql.sock
[mysqld_multi]
log=/mydata/mysqld_multi.log
#mysqld=/usr/sbin/mysqld
user=mysql
#basedir = /usr
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld3306]
########basic settings########
user=mysql
server-id = 333
port = 3306
socket=/mydata/data/master1.sock
#skip-grant-tables
character_set_server=utf8
skip_name_resolve = 1
max_connections = 2000
max_connect_errors = 1000
datadir = /mydata/data
explicit_defaults_for_timestamp = 1
join_buffer_size = 134217728
tmp_table_size = 67108864
tmpdir = /tmp
lower_case_table_names=1
log_error = error.log
########replication settings########
master_info_repository = TABLE
relay_log_info_repository = TABLE
log_bin = bin.log
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
binlog_format = row
relay_log = relay.log
relay_log_recovery = 1
#binlog_gtid_simple_recovery = 1
slave_skip_errors = ddl_exist_errors
########innodb settings########
innodb_buffer_pool_size = 1G
innodb_buffer_pool_instances = 8
innodb_lock_wait_timeout = 50
innodb_log_file_size = 500M
innodb_purge_threads = 4
innodb_large_prefix = 1
innodb_thread_concurrency = 64
innodb_print_all_deadlocks = 1
innodb_strict_mode = 1
innodb_sort_buffer_size = 67108864
########semi sync replication settings########
#plugin_dir=/usr/local/mysql/lib/plugin
#plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
loose_rpl_semi_sync_master_enabled = 1
loose_rpl_semi_sync_slave_enabled = 1
loose_rpl_semi_sync_master_timeout = 5000
[mysqld3307]
########basic settings########
user=mysql
server-id = 789
port = 3307
skip-grant-tables
socket=/mydata/data2/master2.sock
character_set_server=utf8
skip_name_resolve = 1
max_connections = 2000
max_connect_errors = 1000
datadir = /mydata/data2
explicit_defaults_for_timestamp = 1
join_buffer_size = 134217728
tmp_table_size = 67108864
tmpdir = /tmp
lower_case_table_names=1
log_error = error.log
########replication settings########
master_info_repository = TABLE
relay_log_info_repository = TABLE
log_bin = bin.log
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
binlog_format = row
relay_log = relay.log
relay_log_recovery = 1
#binlog_gtid_simple_recovery = 1
slave_skip_errors = ddl_exist_errors
########innodb settings########
innodb_buffer_pool_size = 1G
innodb_buffer_pool_instances = 8
innodb_lock_wait_timeout = 50
innodb_log_file_size = 500M
innodb_purge_threads = 4
innodb_large_prefix = 1
innodb_thread_concurrency = 64
innodb_print_all_deadlocks = 1
innodb_strict_mode = 1
innodb_sort_buffer_size = 67108864
########semi sync replication settings########
#plugin_dir=/usr/local/mysql/lib/plugin
#plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
loose_rpl_semi_sync_master_enabled = 1
loose_rpl_semi_sync_slave_enabled = 1
loose_rpl_semi_sync_master_timeout = 5000
新闻名称：MYSQL多实例安装以及常见运维点-创新互联
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