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因使用源码安装的MySQL5.7.28多实例,在导入数据库时会出现问题,所以重新研究使用mysql_multi的方法来管理多实例,经过测试环境验证之后,在各方面使用上特别在备份还原上,没有报MySQL5.7.28多实例的问题,踩了不少坑,这里我将我的部署过程分享下,如果在哪里出问题的,还请多多指正与指导,谢谢!!
参考文章:Centos7.5安装mysql5.7.24二进制包方式部署
https://www.jb51.net/article/151867.htm
本从就直接从2.7章节开始安装mysql多实例,具体部署过程如下:
2.7 安装mysql多实例
2.7.1. 创建软件安装目录(部署路径请根据实际修改)
[root@~]# mkdir -pv /data/mysql/{3306,3307} [root@~]# mkdir -v /data/mysql/3306/{logs,data,binlog} [root@~]# mkdir -v /data/mysql/3307/{logs,data,binlog}
2.7.2. MySQL安装包下载
[root@~]# cd /opt [root@~]# wget -c https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz [root@~]# tar zxvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz [root@~]# mv mysql-5.7.28-linux-glibc2.12-x86_64 /usr/local/mysql [root@~]# chown -R mysql:mysql /usr/local/mysql [root@~]# chown -R mysql:mysql /data
2.7.3. MySQL参数配置
配置my.cnf参数文件
(1)server_id=3306与server_id=3307数值请根据实际配置,注意配置的id值与局域网内其他各实例所配置的数值不可以冲突;
(2)max_connections=1000配置MySQL数据库的最大连接数,根据实际需要配置,其他参数的优化根据实际需要修改或添
加;
(3)配置文件全部内容如下
[root@~]# vim /etc/my.cnf [mysqld_multi] mysqld = /usr/local/mysql/bin/mysqld mysqladmin = /usr/local/mysql/bin/mysqladmin log = /data/mysql/mysqld_multi.log #user=root #pass= [mysql] prompt="\u@jsshapp \R:\m:\s [\d]> " no-auto-rehash [mysqld3306] user = mysql port = 3306 symbolic-links = 0 #basedir = /usr/ datadir = /data/mysql/3306/data socket = /data/mysql/3306/mysql3306.sock pid-file = /data/mysql/3306/mysqld3306.pid server_id = 3306 character_set_server = utf8 max_connections = 1000 skip_name_resolve = 1 open_files_limit = 65536 thread_cache_size = 64 table_open_cache = 4096 table_definition_cache = 1024 table_open_cache_instances = 64 max_prepared_stmt_count = 1048576 explicit_defaults_for_timestamp = true log_timestamps = system binlog_format = row log_bin = /data/mysql/3306/binlog/mysql-bin binlog_rows_query_log_events = on expire_logs_days = 7 binlog_cache_size = 4M max_binlog_cache_size = 2G max_binlog_size = 1G sync_binlog = 1 log_bin_trust_function_creators = 1 slow_query_log = on slow_query_log_file = /data/mysql/3306/data/slow.log log-error = /data/mysql/3306/logs/error.log log_queries_not_using_indexes = on long_query_time = 1.000000 gtid_mode = on enforce_gtid_consistency = on default_storage_engine = innodb default_tmp_storage_engine = innodb innodb_data_file_path = ibdata1:12M:autoextend:max:2000M innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:2000M innodb_buffer_pool_filename = ib_buffer_pool innodb_log_files_in_group = 3 innodb_log_file_size = 512M innodb_online_alter_log_max_size = 1024M innodb_open_files = 4096 innodb_page_size = 16k innodb_thread_concurrency = 0 innodb_read_io_threads = 4 innodb_write_io_threads = 4 innodb_purge_threads = 4 innodb_page_cleaners = 4 innodb_print_all_deadlocks = on innodb_lock_wait_timeout = 20 innodb_spin_wait_delay = 128 innodb_autoinc_lock_mode = 2 innodb_io_capacity = 200 innodb_io_capacity_max = 2000 #innodb_flush_neighbors = innodb_log_buffer_size = 8M innodb_flush_log_at_timeout = 1 innodb_flush_log_at_trx_commit = 2 innodb_buffer_pool_size = 1024M innodb_buffer_pool_instances = 4 autocommit = 1 innodb_buffer_pool_dump_pct = 25 innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_load_at_startup = ON [mysqld3307] user = mysql port = 3307 symbolic-links = 0 lower_case_table_names = 1 #basedir = /usr/ datadir = /data/mysql/3307/data socket = /data/mysql/3307/mysql3307.sock pid-file = /data/mysql/3307/mysqld3307.pid server_id = 3307 character_set_server = utf8 max_connections = 1000 skip_name_resolve = 1 open_files_limit = 65536 thread_cache_size = 64 table_open_cache = 4096 table_definition_cache = 1024 table_open_cache_instances = 64 max_prepared_stmt_count = 1048576 explicit_defaults_for_timestamp = true log_timestamps = system binlog_format = row log_bin = /data/mysql/3307/binlog/mysql-bin binlog_rows_query_log_events = on expire_logs_days = 7 binlog_cache_size = 4M max_binlog_cache_size = 2G max_binlog_size = 1G sync_binlog = 1 slow_query_log = on slow_query_log_file = /data/mysql/3307/data/slow.log log-error = /data/mysql/3307/logs/error.log log_queries_not_using_indexes = on long_query_time = 1.000000 gtid_mode = on enforce_gtid_consistency = on default_storage_engine = innodb default_tmp_storage_engine = innodb innodb_data_file_path = ibdata1:12M:autoextend:max:2000M innodb_temp_data_file_path = ibtmp1:12M:autoextend:max:2000M innodb_buffer_pool_filename = ib_buffer_pool innodb_log_files_in_group = 3 innodb_log_file_size = 512M innodb_online_alter_log_max_size = 1024M innodb_open_files = 4096 innodb_page_size = 16k innodb_thread_concurrency = 0 innodb_read_io_threads = 4 innodb_write_io_threads = 4 innodb_purge_threads = 4 innodb_page_cleaners = 4 innodb_print_all_deadlocks = on innodb_lock_wait_timeout = 20 innodb_spin_wait_delay = 128 innodb_autoinc_lock_mode = 2 innodb_io_capacity = 200 innodb_io_capacity_max = 2000 #innodb_flush_neighbors = innodb_log_buffer_size = 8M innodb_flush_log_at_timeout = 1 innodb_flush_log_at_trx_commit = 2 innodb_buffer_pool_size = 1024M innodb_buffer_pool_instances = 4 autocommit = 1 innodb_buffer_pool_dump_pct = 25 innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_load_at_startup = ON [mysqldump] quick max_allowed_packet = 32M