mysql synchronous replication

Master-slave replication is widely used in MySQL. it is mainly used to synchronize data on one server to multiple slave servers. it can be used for load balancing, high availability and failover, and backup. MySQL supports a variety of replication technologies, such as unidirectional, semi-

Mysql backup and AB replication are available in two ways: Synchronous replication (msylq-cluster) asynchronous replication (mysql-ms master-slave backup is also called dual-machine Hot Backup) I.

can use the root user if you do not want to create a user). --Grant Replication Slave,replication client on * * to ' slave ' @ ' 10.10.2.157 ' identified by ' dbadmin '; --Lock all table write operations- flush tables with read lock; --Shows the status of the primary server-show master status; --Change the synchronization from the server from the 8,042-bit position in the main binary file

Mariadb or MySQL master/Master synchronous Backup Settings (windows)Abstract: This article only describes the configuration of master-master synchronous backup in a dual database. If you need to implement real failover and load balancing, you also need to configure other software such as Keepalived (using Keepalived, you must use the linux system. This software i

. mysql> SHOW BINARY LOGS;A log is generally recorded: Generation time (timestamp); Position (position) time itself (offset),Binary logging is not perfect, so if you do not back up your database, it may not be possible to recover data by simply binary files. So the best way is to put the database back on one sideBecause the primary server allows parallel execution, such as having multiple CPUs to perform several writes at the same time, writing to the

original 2016-07-21 Song Li mysql Chinese web Share Themes"MySQL 5.7 Replication new Features"Guest IntroductionSong Li , MySQL research engineer. 2009 joined the MySQL Global research and development team to develop MySQL

| 359 |TABLE_ID: -Flags:stmt_end_f| |Host2-Bin.000001 | 359 |Xid| 1 | 390 | COMMIT /*xid=423*/ | |Host2-Bin.000001 | 390 |Stop| 2 | 413 | | +------------------+-----+----------------+-----------+-------------+----------------------------------------- --------------------------+ 8Rowsinch Set(0.00Sec The following are some of the deletions are bin

Detailed steps for implementing mysql hot backup in linux (mysql master-slave replication) bitsCN.com Role of the master and slave: 1. it can be used as a backup method. 2. read/write splitting to relieve the pressure on a database MySQL master-slave backup principle: Mysql

MySQL replication details and simple instances, mysql detailed examples MySQL replication details and simple instances Master-slave replication is widely used in MySQL. It is mainly use

) unsigned not NULL,PRIMARY KEY (' user_log_id ')) Engine=myisam DEFAULT Charset=utf8;4, establish the account for replicationGrant Replication Slave on * * to [e-mail protected] '% ' identified by ' timescode888′;Quit#重启服务器/etc/init.d/mysql restart#进入mysql查看有没有生效Mysql-u root-pMysql> Show master status;+ —————— + ———-+

or SQL line threads. changing Master The line is impersonating is processing the change MASTER to statement. Killing slave The line is impersonating is processing the stop slave statement. Opening Master Dump Table This state occurs after the creating table from master dump. Reading Master Dump table data This state occurs after the opening Master dump table. Rebuilding the index on Master dump table This state occurs after r

Label:mysql> stop slave; mysql> change Master to master_delay=10; #单位是秒 mysql> start slave; Mysql> show Slave status\g *************************** 1. Row *************************** slave_io_state: Waiting for Master to send event ... Sql_delay:10 sql_remaining_delay:null slave_sql_running_state:slave have read a

= 1Innodb_flush_logs_at_trx_commit = 1(3) Database Replication FilteringMaster Server[Mysqld]Binlog-do-db = mageduFilter on the master server: no database-related write operations will be recorded in binary logs, so it is best not to set them. Generally, you can set them on the slave server.Slave Server:Replicate_do_dbRpplicate_ignore_db Replicate_do_tableReplicate_ignore_table Replicate_wild_do_tableReplicate_wild_ignore_tableCopy only one testdb da

Tags: mysql semi-synchronous detailed configurationSemi-synchronous1. Main servicemysql > Install plugin rpl_semi_sync_master soname ' semisync_master.so '; # Turn on the main service semi-sync functionMySQL > Show global variables like '%semi% '; #查看半同步开启状态信息MySQL > Set global rpl_semi_sync_master_enabled=on; Turn on semi-sy