Historically MySQL is great in horizontal READ scale. The scaling, in that case, is offered by the different number of Replica nodes, no matter if using standard asynchronous replication or synchronous replication.

However, those solutions do not offer the same level of scaling for writes operation.

Why? Because the solutions still rely on writing in one single node that works as Primary. Also, in the case of multi-Primary, the writes will be distributed by transaction. In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated.

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS …

It is in the middle of the summer, but we found some time to prepare a new RonDB release. Today we are proud to release new RonDB versions.

https://www.logicalclocks.com/blog/new-rondb-release-21-10-1

RonDB is a stable distribution of NDB Cluster, a key-value store with SQL capabilities. It is based on a release of MySQL, an SQL database server.

RonDB 21.04.1 is the second release of the stable version of RonDB. It contains 3 new features and 18 bug fixes. We plan to support RonDB 21.04 until 2024.

RonDB 21.10.1 is the first beta version of RonDB 21.10. It contains 4 new features that improves throughput of the DBT2 benchmark by 70% compared to RonDB 21.04.1.

Detailed release notes are available in the RonDB documentation.

The new …

We are proud to announce the latest release of ProxySQL version 2.2.0

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded from the ProxySQL Repository (instructions here) or for a Docker image check out the Official ProxySQL Docker Repository. ProxySQL is freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

ProxySQL v2.2.0 is a minor release comprising of backward compatible changes, enhancements and bug fixes. Going forward ProxySQL will be using the common versioning standard “Major.Minor.Patch” and so this is essentially the first minor release of the 2.1 branch and inclues many fixes and features that were added to the 2.0 branches …

We are proud to announce the latest release of ProxySQL version 2.1.1 on the 21st of April 2021

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded from the ProxySQL Repository (instructions here) or for a Docker image check out the Official ProxySQL Docker Repository. ProxySQL is freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

ProxySQL v2.1.1 is a patch release comprising of minor backward compatible changes and bug fixes. This release is the first patch release of the 2.1 branch and inclues many fixes and features that were introduced in the 2.0.x branches after 2.1 was released.

Be sure to try out the ProxySQL …

We are proud to announce the latest release of ProxySQL version 2.0.18 on the 8th of April 2021

ProxySQL is a high performance, high availability, protocol aware proxy for MySQL, with a GPL license! It can be downloaded from the ProxySQL Repository (instructions here) or for a Docker image check out the Official ProxySQL Docker Repository. ProxySQL is freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

ProxySQL v2.0.18 is a patch release comprising of minor backward compatible changes and bug fixes.

• Note: ProxySQL v2.1.0 remains the latest stable GA release.

Be sure to try out the ProxySQL 2.0.18 release and …

ProxySQL is proud to announce the latest release of ProxySQL version 2.0.17 on the 9th of February 2021

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, or the Docker image available on our Official ProxySQL Docker Repository.  ProxySQL is freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

ProxySQL v2.0.17 is a patch release comprising of minor backward compatible changes and bug fixes. 

Be sure to try out the new ProxySQL 2.0.17 release and …

ProxySQL is proud to announce the latest release of ProxySQL version 2.0.16 on the 26th of January 2021

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, or the Docker image available on our Official ProxySQL Docker Repository.  ProxySQL is freely usable and accessible according to the GNU GPL v3.0 license.

Release Overview Highlights

ProxySQL v2.0.16 is a patch release comprising of minor backward compatible changes and bug fixes. This release brings several fixes to ProxySQL’s Native Galera monitor, AWS Aurora and connection handling.

…

ProxySQL is proud to announce the latest release of ProxySQL version 2.0.15 on the 30th of October 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

ProxySQL v2.0.15 is a patch release comprising of minor backward compatible changes and bug fixes.

The most interesting highlight of this release is the introduction of ARMv8 64-bit packages which have been compiled for CentOS-RHEL 7/8, Debian 9/10 and Ubuntu 18/20 as well as a Docker image available on our …

For what reason should I use a real multi-primary setup?

To be clear, not a multi-writer solution where any node can become the active writer in case of needs, as for Percona XtraDB Cluster (PXC) or Percona Server for MySQL using Group_replication. No, we are talking about a multi-primary setup where I can write at the same time on multiple nodes. I want to insist on this “why?”.

After having excluded the possible solutions mentioned above, both covering the famous 99.995% availability, which is 26.30 minutes of downtime in a year, what is left?

Disaster Recovery? Well, that is something I would love to have, but to be a real DR solution we need to put several kilometers (miles for imperial) in the middle.

And we know …

ProxySQL is proud to announce the release of the latest stable version of ProxySQL 2.0.14 on the 8th of September 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

Before discussing the features and fixes in this release we’d like to mention that we are aware of the delays in new releases. Ideally we would like to release ProxySQL more rapidly however we have recently been focusing our development efforts on ProxySQL 2.1.

The next edition of ProxySQL brings improved performance as well as many new and exciting …