Replication
Replication in MySQL is the process of copying and synchronizing data from one MySQL database server to another. This is done by creating one or more exact copies of the database on different servers, which allows for high availability and scalability of the database.
There are different types of replication in MySQL, such as master-slave replication and master-master replication. In master-slave replication, one server acts as the master and is responsible for writing to the database, while one or more slave servers receive a copy of the data and can be used for read operations. In master-master replication, two or more servers can both read and write to the database and changes are propagated to all servers.
The replication process involves setting up a replication topology, which includes configuring the servers, defining replication channels, and starting the replication process. Once replication is set up, data changes made on the master server are replicated to the slave server(s) through the replication channel. The replication can be asynchronous or synchronous, depending on the configuration.
Replication can provide several benefits, such as increased availability and scalability, improved performance, and backup and disaster recovery options. However, it also requires careful planning and configuration to ensure data consistency and avoid data conflicts.
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