This article is following the MySQL 5.7 Performance series started from 1.6M QPS details post

Let's focus now on the Sysbench "mixed" OLTP_RO workload (so, not only Point-Selects, but all RO queries as it was initially designed in OLTP_RO scenario in Sysbench), which is composed of :

• x10 point-selects
• x1 simple-ranges
• x1 order-ranges
• x1 sum-ranges
• x1 distinct-ranges

Note about test conditions :

• in this and in the previous article we're seeking for MySQL & InnoDB scalability limits ;-)
• so, yes, the client and server are running locally on the same host (we're not testing here network stuff vendors)
• the load is not IO-bound either, very quickly the whole …

Live demo recording of ClusterControl 1.2.11 and its new features 

Thanks to everyone who joined us for our recent live webinar on ‘ClusterControl 1.2.11 - new release’ led by Art van Scheppingen , Senior Support Engineer at Severalnines. The replay and slides to the webinar are now available to watch and read online via the links below.

During this live webinar, Art demonstrated the latest ClusterControl release and its new features such as support for MariaDB’s MaxScale and related MySQL updates; this is also the best ClusterControl release for PostgreSQL yet.

In fact, and during a live demo, Art not only introduced the new features, but also proceeded to deploy MongoDB, PostgreSQL, MySQL clusters and replicated setups as well as MariaDB’s MaxScale proxy all in the one session and the one ClusterControl instance - within 40min! Impressive stuff, which can be viewed again in this recording! …

Live demo recording of ClusterControl 1.2.11 and its new features 

Thanks to everyone who joined us for our recent live webinar on ‘ClusterControl 1.2.11 - new release’ led by Art van Scheppingen , Senior Support Engineer at Severalnines. The replay and slides to the webinar are now available to watch and read online via the links below.

During this live webinar, Art demonstrated the latest ClusterControl release and its new features such as support for MariaDB’s MaxScale and related MySQL updates; this is also the best ClusterControl release for PostgreSQL yet.

In fact, and during a live demo, Art not only introduced the new features, but also proceeded to deploy MongoDB, PostgreSQL, MySQL clusters and replicated setups as well as MariaDB’s MaxScale proxy all in the one session and the one ClusterControl instance - within 40min! Impressive stuff, which can be viewed again in this recording! …

The client library — libmysqlclient — is part of the same source code repository as the server. It comes both as a dynamic link library (.so), also called a shared library, and as a static link library (.a). During the 5.7 development cycle, we’ve made several improvements to the library, which has resulted in a bump from ABI version 18 to version 20.…

Requires ClusterControl. Applies to all supported database clusters. Applies to all supported operating systems (RHEL/CentOS/Debian/Ubuntu).

ClusterControl requires a super-privileged SSH user to provision database nodes. If you are running as non-root user, the corresponding user must able to execute sudo commands with or without sudo password. Unfortunately, this could generate another issue where performing remote command with “sudo” requires an interactive session (tty). We will explain this in details in the next sections.

What’s up with sudo?

By default, most of the RHEL flavors have the following configured under /etc/sudoers:

Defaults requiretty

When an interactive session (tty) is required, each time the sudo user SSH into the box with -t flag (force pseudo-tty allocation), entries …

Requires ClusterControl. Applies to all supported database clusters. Applies to all supported operating systems (RHEL/CentOS/Debian/Ubuntu).

ClusterControl requires a super-privileged SSH user to provision database nodes. If you are running as non-root user, the corresponding user must able to execute sudo commands with or without sudo password. Unfortunately, this could generate another issue where performing remote command with “sudo” requires an interactive session (tty). We will explain this in details in the next sections.

What’s up with sudo?

By default, most of the RHEL flavors have the following configured under /etc/sudoers:

Defaults requiretty

When an interactive session (tty) is required, each time the sudo user SSH into the box with -t flag (force pseudo-tty allocation), entries …

MySQL 5.7 has a lot of enhancements and new features. I summarized this list previously in this blog post.

Adding replication filters online is one of the MySQL 5.7 features described in this manual. However, I will describe and summarize a few examples in this blog post.

Filtering replication events is also known as Partial Replication. Partial replication can be done from the master or slave. Filtering events on the master server via …

Previous Episodes:

MySQL-Docker operations. - Part 1: Getting started with MySQL in DockerMySQL-Docker operations. - Part 2: Customizing MySQL in Docker
With the material covered in the first two articles, we have all the elements needed to set up replication in Docker. We just need to put the pieces together.
If you want to do everything by hand, it will only take a few minutes. The steps are not complicated. If you have followed the reasoning in the past episodes, you will know what to do.
Or, you can make your life easier by using the ready-made scripts available in Github as MySQL …

A new version of the Group Replication plugin for MySQL is available now. The newest release is available on Mac OS X, Solaris, and FreeBSD.

Additional platform support has been made possible via a new group communication implementation. This new communication system supports communication of messages between servers on many platforms, allowing MySQL to embrace the diversity of the MySQL community and enables Group Replication for more people on more platforms.…

This is a quick setup guide of 10-steps to install and configure (multiple) MySQL instance on 3307 port, and make it slave from MySQL running on port 3306.

The post Setting-up second MySQL instance & replication on Linux in 10 steps first appeared on Change Is Inevitable.