ProxySQL is proud to announce the release of the latest stable version of ProxySQL 2.0.13 on the 15th of July 2020

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded here or alternatively from the ProxySQL Repository, and freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

New Features

Although only bug fixes are supposed to go into ProxySQL 2.0, we had to introduce a few minor new features:

• A client can force ProxySQL to run a query in a new connection using a query annotation using create_new_connection=1 in a comment. For example SELECT /* create_new_connection=1 */ 1 . See #2874
• Added …

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).

… Tweet Share

MySQL does not limit the number of slaves that you can connect to the master server in a replication topology. However, as the number of slaves increases, they will have a toll on the master resources because the binary logs will need to be served to different slaves working at different speeds. If the data churn on the master is high, the serving of binary logs alone could saturate the network interface of the master.

A classic solution for this problem is to deploy a binlog server – an intermediate proxy server that sits between the master and its slaves. The binlog server is set up as a slave to the master, and in turn, acts as a master to the original set of slaves. It receives binary log events from the master, does not apply these events, but serves them to all the other slaves. This way, the load on the master is tremendously reduced, and at the same time, the binlog server serves …

ProxySQL is proud to announce the fast track release of the latest stable version of ProxySQL 2.0.12 on 18th of May 2020

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded here or alternatively from the ProxySQL Repository, and freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights Enhancements

• Added tracking capability for variable group_concat_max_len #2709
• Do not compile if GIT_VERSION is not set #2768
• Several new automated …

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.

… Tweet Share

The MySQL Development Team is happy to announce a new 8.0 Maintenance Release of MySQL Shell AdminAPI – 8.0.20!

Following the previous exciting release, on which InnoDB ReplicaSet was introduced, we focused on improving the management of ReplicaSets but also, most importantly, InnoDB cluster.…

Facebook Twitter LinkedIn

How to achieve MySQL high availability, data protection & disaster recovery

This MySQL high availability and disaster recovery use case is based on a customer of ours who is a government-regulated lottery service consisting of a number of games of chance. Its mission is to fuel imagination – and fund education for all citizens of their state as it uses the proceeds of its activities to do so. Through its games, it has provided billions of dollars in scholarship and other such education funding for several decades.

What is the Challenge?

As is common for gambling and betting organisations, our customer faced a number of challenges and needed to have a solid infrastructure in place in order to provide its services satisfactorily.

This includes:

• Ensuring 24/7/365 availability of its online gaming platform
• Handling thousands of transactions quickly and while ensuring zero downtime …

Percona XtraDB Cluster 8.0 is in the final stretch before GA release and we have pre-release packages available for testing, and I wanted to see how Percona XtraDB Cluster 8.0 performs in CPU and IO-bound scenarios, like in my previous posts about MySQL Group Replication.

In this blog, I want to evaluate Percona XtraDB Cluster 8.0 scaling capabilities in I/O bound cases when we increase the number of nodes and increase user connections. The version I used is available here: …

Percona XtraDB Cluster 8.0 is on the final stretch before GA release, and we have pre-release packages available for testing.

I wanted to see how Percona XtraDB Cluster 8.0 performs in CPU and IO-bound scenarios, like in my previous posts about MySQL Group Replication.

In this blog, I want to evaluate Percona XtraDB Cluster 8.0 scaling capabilities in cases when we increase the number of nodes and increase user connections. The version I used is available here: Percona-XtraDB-Cluster-8.0.18. …

This is a three-part blog series that focuses on dealing with an unexpected high traffic event as it is happening. Part one can be found here, and part two can be found here.   13. Configure MySQL Server Properly

Complexity:Medium
Potential Impact: High 

A poorly configured MySQL Server can cause severe issues, especially under high load during a traffic spike, yet getting the basics right is not that hard. While MySQL Server has more than 400 variables you can tune, you rarely need to change more than 10-20 of them to get 95% of the possible performance for your workload.

…