Enhanced support for large transactions in Group Replication

MySQL 8.0.16 is out and it enhances Group Replication as usual. For example, the group_replication_exit_state_action system variable has a new default value, and members that the group expels can now automatically try to rejoin. This post presents a new feature MySQL 8.0.16 brings to Group Replication: message fragmentation. As you Continue Reading

Change group_replication_exit_state_action default option to READ_ONLY

In MySQL 8.0.16, the Group Replication plugin variable group_replication_exit_state_action default value has been changed to READ_ONLY. The group_replication_exit_state_action plugin variable was introduced in MySQL 8.0.12 to allow the user to configure how Group Replication behaves when a server instance leaves the group unintentionally. The group_replication_exit_state_action has following two values: ABORT_SERVER: Continue Reading

Rotating binary log master key online

Starting on version 8.0.16, MySQL server introduces a new command that allowsfor the binary log master key rotation, online! When binary log encryption is enabled, the binary log master key can be rotated online by using the following new command: ALTER INSTANCE ROTATE BINLOG MASTER KEY; ALTER INSTANCE ROTATE BINLOG Continue Reading

MySQL 8.0.16 Replication Enhancements

MySQL 8.0.16 has been released last Thursday. In it, you can find some new replication features. Here is a quick summary. Follow-up blog posts will provide details about these features. Large Messages Fragmentation Layer for Group Replication. Tiago Vale’s work, introduces message fragmentation to the Group Communication Framework. Group Replication’s Paxos Continue Reading

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