1,多配置文件部署方案
2,单一配置文件部署方案
推荐使用多配置文件部署方案,因为单一配置文件配置方案耦合度太高容易产生故障。
多配制文件配置方案;
1,创建多实例的配置文件:
#mkdir /data/{3306.3307}/data –p #cd /data/3306
my.cnf和上文提到的基本类似,只是修改了路径:
vim my.cnf [client] port = 3306 socket = /data/3306/mysql.sock [mysql] no-auto-rehash [mysqld] user = mysql port = 3306 socket = /data/3306/mysql.sock basedir = /application/mysql datadir = /data/3306/data open_files_limit = 1024 back_log = 600 max_connections = 800 max_connect_errors = 3000 table_cache = 614 external-locking = FALSE max_allowed_packet =8M sort_buffer_size = 1M join_buffer_size = 1M thread_cache_size = 100 thread_concurrency = 2 query_cache_size = 2M query_cache_limit = 1M query_cache_min_res_unit = 2k #default_table_type = InnoDB thread_stack = 192K #transaction_isolation = READ-COMMITTED tmp_table_size = 2M max_heap_table_size = 2M long_query_time = 1 #log_long_format #log-error = /data/3306/error.log #log-slow-queries = /data/3306/slow.log pid-file = /data/3306/mysql.pid log-bin = /data/3306/mysql-bin relay-log = /data/3306/relay-bin relay-log-info-file =/data/3306/relay-log.info binlog_cache_size = 1M max_binlog_cache_size = 1M max_binlog_size = 2M expire_logs_days = 7 key_buffer_size = 16M read_buffer_size = 1M read_rnd_buffer_size = 1M bulk_insert_buffer_size = 1M #myisam_sort_buffer_size = 1M #myisam_max_sort_file_size = 10G #myisam_max_extra_sort_file_size = 10G #myisam_repair_threads = 1 #myisam_recover lower_case_table_names = 1 skip-name-resolve slave-skip-errors = 1032,1062 replicate-ignore-db=mysql server-id = 1 innodb_additional_mem_pool_size = 4M innodb_buffer_pool_size = 32M innodb_data_file_path =ibdata1:128M:autoextend innodb_file_io_threads = 4 innodb_thread_concurrency = 8 innodb_flush_log_at_trx_commit = 2 innodb_log_buffer_size = 2M innodb_log_file_size = 4M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_lock_wait_timeout = 120 innodb_file_per_table = 0 [mysqldump] quick max_allowed_packet = 2M [mysqld_safe] log-error=/data/3306/mysql_3306.err pid-file=/data/3306/mysqld.pid
#vim /data/3306/mysql #!/bin/sh #init port=3306 mysql_user="root" mysql_pwd="" CmdPath="/application/mysql/bin" mysql_sock="/data/${port}/mysql.sock" #startup function function_start_mysql() { if[ ! -e "$mysql_sock" ];then printf "Starting MySQL...\n" /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf2>&1 > /dev/null & else printf "MySQL is running...\n" exit fi } #stop function function_stop_mysql() { if [ ! -e "$mysql_sock" ];then printf "MySQL is stopped...\n" exit else printf "Stoping MySQL...\n" ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S/data/${port}/mysql.sock shutdown fi } #restart function function_restart_mysql() { printf "Restarting MySQL...\n" function_stop_mysql sleep 2 function_start_mysql } case $1 in start) function_start_mysql ;; stop) function_stop_mysql ;; restart) function_restart_mysql ;; *) printf "Usage: /data/${port}/mysql {start|stop|restart}\n" esac
授权mysql用户和组管理多实例目录/data
#chown –R mysql.mysql /data
授权mysql多实例服务所有启动文件可执行:
#find /data –type f –name mysql |xargs chmod700
2,初始化mysql多实例数据库文件:
#/application/mysql/scripts/mysql_install_db --user=mysql --datadir=/data/3306/data --basedir=/application/mysql #/application/mysql/scripts/mysql_install_db --user=mysql --datadir=/data/3307/data --basedir=/application/mysql
3,启动数据库:
#/data/{3306,3307}/mysql start
4,多实例数据库管理:
登录数据库:
#mysql –uroot –pabc-123 –S/data/3306/mysql.sock #mysql –uroot –pabc-123 –S/data/3307/mysql.sock
重启数据库
#mysqladmin –uroot –p’abc-123’ –S/data/3306/mysql.sock shutdown #mysqladmin –uroot –p’abc-123’ –S/data/3307/mysql.sock shutdown #/data/{3306,3307}/mysql start
远程登录
#mysql -uroot –p’abc-123’ –h 10.0.0.2 –P 3307
5,强制关闭数据库的方法
#killall mysqld #pkill mysqld #killall -9 mysqld
强制关闭数据库非常危险,可能造成无法启动问题。
转载于:https://blog.51cto.com/luckypaiwl/1726737