Codership is pleased to announce a new Generally Available (GA) release of the multi-master Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.48 (release notes, download) and MySQL-wsrep 5.7.30 (release notes, download) with a new Galera Replication library 3.30 (release notes, download), implementing wsrep API version 25. This release incorporates all changes to MySQL 5.6.48 and 5.7.30 respectively, making it a MySQL High Availability solution.

A highlight of this release is that with MySQL 5.7.30, you will now have access to using the Percona audit log plugin, which will help with monitoring and logging connection and query activity that has been performed on specific servers. This implementation is provided as an alternative to the MySQL Enterprise Audit Log Plugin.

The Galera Replication library 3.30 has an enhancement to ensure that upon GCache recovery, all available space will be reclaimed in the …

Codership is proud to announce the first Generally Available (GA) release of Galera Cluster 4 for MySQL 8 and improve MySQL High Availability a great deal. The current release comes with MySQL 8.0.19 and includes the Galera Replication Library 4.5 with wsrep API version 26. You can download it now (and note that we have packages for various Linux distributions). 

Galera 4 and MySQL 8.0.19 have many new features, but here are some of the highlights:

• Streaming replication to support large transactions by splitting transaction replication then applying them in smaller fragments. You can use this feature to load data faster, as data is written to all nodes simultaneously (or not at all in case of a failure in any single node).
• Improved …

We recently covered Installing Galera Cluster 4 with MySQL 8 on Ubuntu 18.04 , the new Galera version for MySQL High Availability. We got a request to see if we would be able to install it on Amazon Linux 2, and the short answer is yes, we are able to deploy Galera Cluster on Amazon Linux 2.

We have even published Installing a Galera Cluster on AWS guide for Geo-distributed MySQL Multi-master clustering which covers how to install a 3-node Galera Cluster on CentOS 7 to achieve disaster recovery . It turns out, Amazon Linux 2 tends to be quite compatible with this article ( …

Since the beta of Galera Cluster 4 with MySQL 8 has been released, we’ve had people asking questions as to how to install it on Ubuntu 18.04. This blog post will cover just that.

Prerequisites

• All 3 nodes need to have Ubuntu 18.04 installed
• Firewall (if setup) needs to accept connections on 3306, 4444, 4567, 4568 (a default setup has the firewall disabled)
• AppArmor disabled (this is as simple as executing: systemctl stop apparmor and systemctl disable apparmor).

Installation and Configuration

We have good installation documentation as well as a quick how to get this installed in AWS (though this is CentOS centric).

First, you will need to ensure that the …

A time for new beginnings beckons upon us, and Codership is pleased to announce the much anticipated Release Candidate of MySQL 8.0 that comes with Galera 4. It comes with MySQL 8.0.19 and includes the Galera Replication Library 4.5 Release Candidate and wsrep API version 26. 

Galera 4 and MySQL 8.0.19 have many new features, but here are some of the highlights:

• Streaming replication to support large transactions by splitting transaction replication then applying them in smaller fragments.
• Improved foreign key support, as write set certification rules are optimised and there will be a reduction in the number of foreign key related false conflicts in certifications.
• Group commit is …

Codership is pleased to announce a new Generally Available (GA) release of Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.47 (release notes, download) and MySQL-wsrep 5.7.29 (release notes, download) with a new Galera Replication library 3.29 (release notes, download), implementing wsrep API version 25. This …

Codership is pleased to announce a new Generally Available (GA) release of Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.46 (release notes, download) and MySQL-wsrep 5.7.28 (release notes, download). There is no Galera replication library release this time, so please continue using the 3.28 version, implementing wsrep API version 25.

This release incorporates all changes to MySQL 5.6.46 and 5.7.28 respectively and can be considered an updated rebased version. It is worth noting that …

Công việc lập trình là một công việc đòi hỏi người thực hiện phải có một niềm đam mê lớn và khả năng tư duy nhạy bén. Tuy nhiên với thời buổi công nghệ phát triển mạnh mẽ như hiện nay, việc một lập trình viên có đam mê và năng lực thì chưa đủ, bạn cần phải biết cũng như là sử dụng thành thạo các công cụ tiện ích để hỗ trợ bạn viết ra được những chương trình chất lượng một cách nhanh chóng cũng như là bảo mật tốt cho sản phẩm trí tuệ của mình. Trong bài viết này, chúng tôi sẽ giới thiệu đến bạn một loại công cụ rất được các công ty lập trình ưa chuộng, được sử dụng thường xuyên tại công ty Mona Media –  chính là MySQL Workbench.

1. MySQL Workbench …

EverData a leading data center and cloud solution provider in India has recently been writing quite a bit about Galera Cluster and it seems like we should highlight them. For one, they’ve talked about streaming replication in Galera Cluster 4, available in MariaDB Server 10.4. However, let us focus on their post: Galera Cluster vs Amazon RDS: A Comprehensive Review.

They compared MySQL with MHA, MySQL with Galera Cluster and also Amazon Web Services (AWS) Relational Database Service (RDS). Their evaluation criteria was to see how quickly there would be recovery after a crash, as well as performance while managing concurrent reads and writes.

In their tests, they found that time for …

We (Codership, the original and continued developers and experts of Galera Cluster) participated in Austin 2019, and so it would have seemed remiss if we did not also show up at the Percona Live Open Source Database Conference Europe 2019 (that was a mouthful!) happening in Amsterdam September 30 – October 2 2019. We have a booth in the expo hall at the Hilton Amsterdam Schipol Airport, so come drop by and say hello!

While we do not have any talks accepted in the main program, we do have a tutorial that involves using Galera Cluster and MariaDB Server on the first day at 9am by Colin Charles.  View the whole …