Documentation Home
MySQL 8.0 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 32.6Mb
PDF (A4) - 32.6Mb
PDF (RPM) - 30.7Mb
HTML Download (TGZ) - 7.8Mb
HTML Download (Zip) - 7.9Mb
HTML Download (RPM) - 6.7Mb
Man Pages (TGZ) - 143.2Kb
Man Pages (Zip) - 202.4Kb
Info (Gzip) - 3.0Mb
Info (Zip) - 3.0Mb


MySQL 8.0 Reference Manual  /  Group Replication

Pre-General Availability Draft: 2017-06-27

Chapter 21 Group Replication

This chapter explains MySQL Group Replication and how to install, configure and monitor groups. MySQL Group Replication is a MySQL Server plugin that enables you to create elastic, highly-available, fault-tolerant replication topologies.

Groups can operate in a single-primary mode with automatic primary election, where only one server accepts updates at a time. Alternatively, for more advanced users, groups can be deployed in multi-primary mode, where all servers can accept updates, even if they are issued concurrently.

There is a built-in group membership service that keeps the view of the group consistent and available for all servers at any given point in time. Servers can leave and join the group and the view is updated accordingly. Sometimes servers can leave the group unexpectedly, in which case the failure detection mechanism detects this and notifies the group that the view has changed. This is all automatic.

The chapter is structured as follows:


User Comments
Sign Up Login You must be logged in to post a comment.