New Replication Features

Mats Kindahl (Oracle), Lars Thalmann (Oracle)
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Abstract:
In this talk, the developers behind MySQL Replication walk through some of the new Replication features of MySQL 5.5:

- Heartbeating is used to manage that the master and slave connection is always up.

- Semi-synchronous Replication is used to ensure that any update of the master is on the slave before transaction is acknowleged to the user.

- Replication Server Filtering ensures that the user can more easily replicate in a circle.

- Relay log synchronization ensures that the slave is restartable without clearing the relay log in case of crashes.

- Show relay log events to see what is in the relay log similar to how you can use the SHOW BINLOG EVENTS to see what is in the binary log.

- Support in mysqlbinlog for remote backup of binary logs.

Photo of Mats Kindahl

Mats Kindahl

Oracle

Mats Kindahl lead software developer at MySQL/Oracle. He is the main architect and implementor of the MySQL row-based replication and several other replication features.

He is co-author of the book MySQL High Availability (O’Reilly Media, Inc.)

In the time before starting at MySQL, he has worked with research in formal methods, automated program analysis, distributed systems, and as implementor of C/C++ compilers.

Photo of Lars Thalmann

Lars Thalmann

Oracle

Dr. Lars Thalmann is the development director for MySQL replication, backup, and connectors. He is responsible for the strategy and development of these features and leads the corresponding engineering teams. Thalmann has worked with MySQL development since 2001, when he started as a MySQL Cluster developer. More recently, he has driven the creation and development of the MySQL backup feature, has guided the evolution of MySQL replication since 2004, and has been a key player in the development of MySQL Cluster replication. Thalmann holds a doctorate in Computer Science from Uppsala University, Sweden. He is one of the authors of the “MySQL High Availability” book.

  • Oracle
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