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Glossary

Master

In single-master replication, the master server writes updates to its binary log files and maintains an index of those files to keep track of log rotation. The binary log files serve as a record of updates to be sent to any slave servers. When a slave connects to its master, it informs the master of the position up to which the slave read the logs at its last successful update. The slave receives any updates that have taken place since that time, and then blocks and waits for the master to notify it of new updates.