mysql group replication

Original source: http://www.cnblogs.com/luckcs/articles/2543607.htmlMySQL Master-slave Replication (master-slave) and read-write separation (mysql-proxy) practicesAs the most widely used free database in the world, MySQL believes that all engineers engaged in system operations must have contacted. However, in the actual production environment, the single

The implementation of MySQL master-slave replication 1, the implementation of MySQL replication principle MySQL supports one-way, bidirectional replication, asynchronous replication,

MySQL replication exception big literacy: Quick traceability and troubleshooting full solutionHttps://mp.weixin.qq.com/s/0Ic8BnUokyOj7m1YOrk1tAAuthor IntroductionWang Songlei, currently working in Ucloud, is engaged in the MySQL database core research and development work, mainly responsible for the Ucloud cloud database UDB kernel troubleshooting work and the ne

Because group by actually does the same sort operation, group by is mostly just a grouping operation after sorting. Of course, if other aggregate functions are used when grouping, then some aggregation function calculations are also required. As a result, the index can also be used as an order by in the implementation of Group by. In

The last article on MySQL replication focuses on the design points and constraints of the two-way synchronous replication architecture. The dual-master, dual-write, and bidirectional synchronization scenarios of databases are restricted, mainly considering data integrity, consistency, and conflict avoidance. For the last article about

Label:MySQL Replication is a very distinctive feature of MySQL, and he is able to copy the data from one MySQL server Instance to the Instance of another MySQL server. Although the replication process is not real-time but asynchronous, due to its efficient performance design

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-synchronous, asynchronous, an

Mysql5.6 gtid (GlobalTransactionIDs) introduced in MySQL5.6 Based on GTID master-slave replication and mysql-proxy read/write separation makes the configuration, monitoring and management of its replication function easier to implement and more healthy .. Mysql5.6 gtid (GlobalTransactionIDs) introduced in MySQL5.6 Based on GTID master-slave

In the previous articles, the high-availability scheme for MySQL databases, master-slave replication, latency generation of master-slave replication, latency Detection and latency solutions (not fundamentally addressed), this master-slave replication scheme guarantees data redundancy while simultaneously reading and wr

, and the INSERT into inserts the data into the SQL.)Because DDL causes autocommit, this SQL requires at least two gtid, but in Gtid mode, only one gtid is generated for this SQL)3. Do not allow one SQL to update both a transaction engine table and a non-transactional engine table4. In a replication group, you must require a unified open Gtid or a shutdown gtid5. Restart Gtid required (except 5.7)6. When Gt

-binbinlog_format = MIXED #非必需relay-log = mysqld-relay-binbinlog-ignore-db = Mysqlbinlog-ig nore-db = information_schemabinlog-ignore-db = Performance_schemareplicate-wild-ignore-table = mysql.% replicate-wild-ignore-table = Information_schema.%replicate-wild-ignore-table = performance_schema.%Iv. manual synchronization of the databaseIf there is already data on master, it is necessary to synchronize the two MySQL