mysql group replication

the slave as much as possible. When Master goes down, it switches to slave without a lot of data loss.This method of asynchronous replication was used until the 2010 MySQL 5.5 release. The transaction execution of the main library does not Tabeku the synchronization progress, if the repository is backward and the main library is unfortunate crash, data loss will result. As a result,

= "192.168.1.29", master_port=3306,master_user= "root", master_password= "[email protected] "For CHANNEL" Master1 ";Change Master tomaster_host= "192.168.1.37", master_port=3306,master_user= "root", master_password= "[email protected] "For CHANNEL" Master2 ";4, start slavestart slave for channel "master1";start slave for channel "master2";MySQL 5.7 is called true parallel replication, the main reason is tha

First, IntroductionIn the master-slave copy of the previous article: http://www.cnblogs.com/lay2017/p/9043985.htmlWe learned that MySQL writes logs through master, slave reads and executes the log content to achieve slave data consistent with master. So based on this principle, we can realize the replication function of two master.Broadly as follows:1, both master open Log-bin write log2, ID to repeat3. Con

Mysql uses group by for group sorting and mysqlgroupby for group sorting Yesterday, I had a need to deduplicate and rank the database data. The same user had the highest score, the lowest time, and the earliest data to participate in the activity. We can use the group by fe

The role of Master and subordinate: 1. Can be used as a backup method 2. Used to achieve the separation of read and write, ease the pressure of a database MySQL master-slave backup principle: MySQL's master-slave replication is at least two MySQL services, of course, MySQL services can be distributed on different s

later.Confirm the password again.At this point, the master-slave server MySQL installation completedThird, build MySQL master-slave replicationHere is the principle of master-slave replication, is based on the MySQL log files, the main server's MySQL operation log files sen

. During Mysql replication, you can restrict replication (master) Binlog-do-db = work # Copy only Binlog_ignore_db = mysql # Copying is not allowed Replicate_Do_DB = mysql Replicate-ignore-db = mysql There are also several commo

There are 3 main steps to the MySQL replication function The primary server logs changes to the binary log (these are called Binary log events)Copy the primary server's binary log events from the server to its trunk logRedo the events in the relay log from the server.The first part of the process is that the primary server records the binary logs, and before each transaction updates the data is completed,Ma

I. OverviewKeep one server's data in sync with other server data. Data from one master library can be synchronized to multiple repositories, and the repository itself can be configured as the main repository for other servers.Main applications:1) Data distribution2) Load Balancing3) Pseudo backup. Add more secure technical supplements based on backup4) High availability and failover. Avoid MySQL single point of failure5) Upgrade test. Before upgrading

; Finally, go back to the B-node MySQL operation: Start slave; The entire schema has been adjusted for completion. Summarize The above is a summary of some work, the focus is to provide you with a way of thinking, I hope that we can continue to expand the thinking on this basis. With a clear idea, it's not difficult to write management scripts in MySQL replication