(1.1)MHA概述 MHA是一套Perl编写的脚本,用来维护MySQL主从复制中Master节点的高可用。官方对其描述:Master High Availability Manager and tools for MySQL (MHA) for automating master failover and fast master switch. 主要功能有: 1.failover:主节点发生故障,将提升从节点为主节点。 2.switchover:主节点进行停机...
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys root@192.168.159.11's password: ## 虚拟...
初始化密码需要到日志里找 /opt/mysql7/bin/mysqld --initialize --user=mysql --basedir=/opt/mysql7 --datadir=/data/MHANODE01/data --explicit_defaults_for_timestamp #建立my.cnf,核心参数: [client] default-character-
socket=/tmp/mysql.sock [mysqld] #skip-name-reslove port=3306basedir=/u01/mysql/datadir=/u01/mysql/data/character-set-server=utf8 default_storage_engine=InnoDB innodb_buffer_pool_size=200M max_allowed_packet=16M explicit_defaults_for_timestamp=1lower_case_table_names=1log-output=FILE general_...
VALIDATE PASSWORD PLUGIN can be used to test passwords and improve security. It checks the strength of password and allows the users to set only those passwords which are secure enough. Would you like to setup VALIDATE PASSWORD plugin?
mysql>insertintosbtest.bvalues(5,'e'); Query OK,1row affected (0.01sec) 2. 分别查看master上binlog的内容,slave上relay log的内容 Master mysql>show binlog events; +---+---+---+---+---+---+ |Log_name|Pos|Event_type|Server_id|End_log_pos|Info| +---+---+---+---...
通过masterha_manager_monitor心跳检测脚本,检测数据库节点主库。默认探测4次,每隔(ping_interval=2)秒,如果主库一直没有心跳,认为主库宕机,进入failover过程。 2.3 选主 按照优先级>日志量最接近主库>配置文件顺序的选择顺序来选择宕机后的主节点 2.3.1 优先级 ...
所以三个都直接回车就行,不需要设置密码'Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: '//上传秘钥到节点服务器'[root@manager ~]# ssh-copy-id 192.168.73.140Are you sure you want to continue connecting ...
repl_password=Test.123 #对应的是上面同步用户的 密码 ping_interval=1 #设置监控主库,发送ping包的时间间隔,默认是3秒,尝试三次没有回应时自动进行切换 master_ip_failover_script=/scripts/master_ip_failover # 该脚本文件请见附录(文末) secondary_check_script= masterha_secondary_check -s 192.168.43.141...
mysqldump -A -F --single-transaction --master-data=1 --default-character-set=utf8 > $dir.sql echo "使用mysqldump备份成功,备份文件:$dir.sql" break ;; 2) xtrabackup --backup --target-dir=$dir &>/dev/null echo "使用xtrabackup备份成功,备份文件:$dir" ...