The MySQL NDB Cluster team works on fundamental redesigns of core parts of NDB architecture. One of these changes is the partial checkpoint algorithm. You can now take full advantage of it when building much larger clusters: NDB 8.0 can use 16 TB data memory per data node for in-memory tables.…
Automatic Schema Synchronization in NDB Cluster 8.0: Part 1
Data nodes are the distributed, sharded storage core of MySQL NDB Cluster. Its data is usually accessed by MySQL Servers (also called SQL nodes in NDB parlance). The MySQL servers each have their own transactional Data Dictionary (DD) where all the metadata describing tables, databases, tablespaces, logfile groups, foreign keys, and other objects are stored for use by MySQL server.…
NDB Cluster 8.0 is Generally Available
MySQL’s NDB Cluster Development team proudly announces NDB Cluster 8.0 General Availability.
NDB 8.0.19 GA is a completely new generation of the world’s highest throughput transactional datastore MySQL NDB Cluster. Some of the key highlights of 8.0 are
- NDB is now fully aligned with MySQL Server 8.0
Restrict MySQL replication to row based events
In a follow-up to the work presented on MySQL 8.0.18 where we introduced privilege checks for slave applier threads, in this post we present a new feature to further increase your ability to securely replicate your data: you can now restrict replication streams to row based events only.…
MySQL 8.0.19 Replication Enhancements
Here comes another MySQL release, and together with it, a set of new replication features. As usual, we would like to summarize them. And, also as usual, follow up blogs will provide further details.
- Configure Replication Applier to Require Row-based Replication only.
Group Replication delivery message service
In the process of enhancing MySQL replication with new features for our users, we also improve the internals. A lot of work goes also to modernize the codebase and make it easier to maintain and obviously extend as well.
In MySQL 8.0.18,…
Automatic member fencing with OFFLINE_MODE in Group Replication
Group Replication enables you to create fault-tolerant systems with redundancy by replicating the system state to a set of servers. Even if some of the servers subsequently fail, as long it is not all or a majority, the system is still available.…
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.…
Replication with restricted privileges
Up until MySQL 8.0.18, the slave executes replicated transactions without checking privileges. It does so to be able to apply everything that its upstream server (the master) tells it to. In practice this means that the slave fully trusts its master.…
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.…