About a month ago, I published how you can connect to MySQL with a small form. One suggestion, or lets promote it to a request, from that post was: “Nice, but how do you create a reusable library for the MySQL Connection Dialog box?”

That was a good question but I couldn’t get back until now to write a new blog post. This reusable MySQL connection dialog lets you remove MySQL connection data from the command-line history. This post also shows you how to create and test a Powershell Module.

The first step to create a module requires that you set the proper %PSModulePath% environment variable. If you fail to do that, you can put it into a default PowerShell module location but that’s not too effective for testing. You launch the System Properties dialog and click the Environment …

Back in December 2018, when we announced the general availability of Percona Server for MySQL 8.0, we also announced that the TokuDB Storage Engine has been marked as “deprecated” in this release, recommending to use the MyRocks Storage Engine as an alternative. We believe that MyRocks provides similar benefits for the majority of workloads and is better optimized for modern hardware.

Since then, we have continued maintaining the storage engine in the 8.0 release, e.g. by incorporating bug fixes. However, the ongoing amount of …

To see what queries are sent to MySQL, it’s useful to enable query logging and piping the output to a file or even a table to inspect later. In this [...]

The post How to enable MySQL query logging appeared first on Geeky Hacker.

Percona Server for MySQL 8.0.23-14 was released last week and I wanted to take a minute to call out some of the interesting new features that we have introduced in this release. These are included in addition to the features and improvements in MySQL 8.0.23 that were introduced by the Oracle MySQL team (and to which Percona also contributed).

Hashicorp Vault Plugin Support for KV Secrets Engine – Version 2 (PS-5364)

As of Percona Server for MySQL 8.0.23-14, the Hashicorp Vault plugin can be configured to specifically use either V1 or V2 Secrets Engine API or it can be configured to probe and auto-detect the best version to use.

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In our last blog post about the Automatic Asynchronous Replication Connection Failover feature which was released in MySQL 8.0.22, we showed you its usage and benefits. We now present here additional changes we added in MySQL 8.0.23 to further enhance this feature by making the receiver aware of the source’s group membership changes.…

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This article provides a complete overview of how to create a new user account in MySQL and grant different types of privileges on a MySQL database. Learn the basics of user account management and find hints. Introduction First, let’s figure out why we need users and privileges. When you install MySQL Server on your system […]

The post How to Create a New User Account in MySQL and Grant Permissions on a Database appeared first on Devart Blog.

 As introduced in a previous blog RonDB enables us to easily execute benchmarks on RonDB using the Sysbench benchmark.

In this blog I will present some results where the RonDB cluster had 2 data nodes, each using a r5.4xlarge VM in AWS that has 16 VCPUs and 128 GB memory. The Sysbench test uses SQL to access RonDB.

In this particular test case we wanted to test the Key-Lookup performance using SQL. Key-Lookup performance is essential in the RonDB use case as an online Feature Store in Hopsworks.

In this case we use the …

In the previous blog, we were able to setup a MySQL NDB Cluster replication between one source and one replica cluster. In this blog, we will discuss about replication between one source and three replica clusters.

Note: With MySQL version (8.0.21), we have started changing the term “master” to “source”, the term “slave” to “replica”. So in this blog we will refer these terms ‘source’ and ‘replica’ wherever applicable.

The main advantage of this type of topology is good for giving ‘local’ reads in geographically distant areas as well as increased redundancy in case of issues.

Let’s create four MySQL NDB Cluster with the following environment, from which one will be termed as ‘source’ cluster while the rest will be ‘replica’ clusters.

• MySQL NDB Cluster version (Latest GA version)
• 1 Management node
• 4 Data nodes …

In this blog series, we will discuss various MySQL NDB Cluster replication topologies possible with a demonstration. We will start with a simple case i.e. one source (formerly called master) and one replica (formerly called slave).

Note: With MySQL version (8.0.21), we have started changing the term “master” to “source”, the term “slave” to “replica”. So in this blog we will refer these terms ‘source’ and ‘replica’ wherever applicable.

Let’s create two MySQL NDB Cluster with the following environment, from which one will be termed as ‘source’ cluster while the other one will be ‘replica’ cluster. For now, let’s stick to the identical environment from both the cluster. Later in the following blog series, we will change the environments and will run the replication.

• MySQL NDB Cluster version (Latest GA version)
• 1 Management node
• 4 Data nodes …

The architecture of the world’s most popular open source database system is very important for the Information Technology people. There are many reasons for MySQL’s popularity around the world, but one of the main reasons is its architecture, while there are many big players such as Oracle, Microsoft SQL and DB2, MySQL’s architecture makes it as unique and preferred choice for most of the developers. In this article, we are going to discuss about of the internal architecture of the MySQL relational database management system. The article is for novice database administrators, database developers, software developers and those who are interested to work with MySQL database.Major components The MySQL architecture describes how the different components of a MySQL system relate to one another. The MySQL architecture is basically a client – server system. MySQL database server is the server and the applications which are connecting to MySQL …