MySQL Terminology Updates

It’s been 20 years since MySQL Replication was introduced in MySQL 3.23.15 (Released in May 2000). Since then, virtually every MySQL Database deployment in production has been using Replication in order to achieve high availability, disaster recovery, read scale out and various other purposes.…

MySQL 8.0.20 Replication Enhancements

We have just released MySQL 8.0.20. And it has some interesting replication enhancements. In particular one big and exciting feature: binary log compression. Here is the list of things in this release:

  • Binary Log Compression (WL#3549). This work done by Luís Soares implements binary log compression, making use of the popular compression algorithm ZSTD.

MySQL User Camp, Bangalore, India – 5th March 2020

A MySQL User Camp was held on 5th March 2020 at Oracle India Pvt Ltd, Kalyani Magnum Infotech Park, Bangalore, India. The attendees included developers, DBAs and trainers from Amex, Robert Bosch, Flipkart and others.

Sanjay Manwani, the Senior Director of MySQL Engineering India, presented an informative session which highlighted MySQL’s recent achievements like the DB of the Year award and the #1 ranking in the Most Popular DB with Developers StackOverflow survey.…

Preserving commit order on replicas with binary log disabled

MySQL 8.0.19 introduces Binlogless replicas with commit ordering which means you can deploy asynchronous replicas without binary logs enabled, and commit transactions in the same order they are replicated in. Yes, you can disable binlog (skip-log-bin) and the logging of changes done by the applier (log-slave-updates=FALSE) while at the same preserve commit order (slave-preserve-commit-order=TRUE).…

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.…