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Displaying posts with tag: Group Communication System (reset)
More Robust Network Partition Handling in Group Replication

As Group Replication (GR) matures and it is deployed in a myriad of different systems, we begin to witness specific network conditions that we must be able to cope with in order to make Group Replication more tolerant and robust to those failures.…

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MySQL 8.0.21 Replication Enhancements

There is a new MySQL 8.0 release and it has some interesting replication features. The change log is available at the usual place, MySQL 8.0.21, but let me give you a brief summary.

  • Binary Log Checksums Support for Group Replication (WL#9038).

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Support for TLS 1.3 in Group Replication

In MySQL 8.0.18, we enhanced the Group Communication System (GCS) layer used by Group Replication (GR) with the ability to use and configure member-to-member connections using TLS v1.3. Therefore, you can secure further your system’s communication with the latest security algorithms.…

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MySQL 8.0.18 Replication Enhancements

The latest MySQL 8.0 release is out. That is MySQL 8.0.18.  We have some new replication enhancements and some work done on replication internals in this release that we would like to highlight and celebrate with our users. Here is a quick summary.…

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Configuring the communication protocol in Group Replication

In a previous blog post we presented the message fragmentation functionality that you can use starting with MySQL Group Replication 8.0.16.

No group member can have a version < 8.0.16 if you wish to use message fragmentation in a group. MySQL 8.0.16 also ships with a new Group Replication concept to help you ensuring backwards compatibility: the group’s communication protocol.…

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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.…

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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.

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IPv6 support in Group Replication

In 8.0.14, we add to Group Replication (GR) the ability to use IPv6 in all of its network-related configuration parameters. This means that now you can take advantage of this technology and “rock” those billion addresses using MySQL Group Replication.

What’s New

When you operate a Group Replication group, some variables use network addresses, mainly:

  • group_replication_local_address;
  • group_replication_ip_whitelist
  • group_replication_group_seeds;
  • group_replication_force_members.

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Group Replication now interacts with the Group Communication Engine more efficiently

MySQL 8.0.14 comes with a plethora of new features. Some of the new Group Replication features have userfacing options, some impact user-facing options, and others stay completely under the hood. This post will present one of the under-the-hood changes in MySQL 8.0.14: the way the Group Replication layer interacts with the underlying …

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Extending replication instrumentation: account for memory used in XCom

Version 8.0.12 added many great new features to MySQL. One of the new features included is the memory instrumentation of the XCom cache, which allows users to view and monitor the memory utilization of the cache by querying Performance Schema (PS).…

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