Raspberry PI is a small single-board computer (SBCs) developed by the Raspberry Pi Foundation in association with Broadcom. This tiny computer is extremely popular and widely used in many areas. Thanks to its size, low cost, and low energy requirements, it can be used to collect data in remote locations or from sensor devices. We often need to be able to store large amounts of data efficiently on these devices.

MyRocks is a MySQL engine that uses RocksDB to store data. It is space efficient and able to handle writes quite efficiently.

First things first

Building and installing Percona Server for MySQL with MyRocks engine enabled is easy but requires some time. It is essential to make sure that you have all the ingredients and meet all the requirements:

• Raspberry PI 3, 4, 400, or superior.
• SD Card with …

To follow up on my previous Kubernetes articles:

• Installed in part one (see Using Percona Kubernetes Operators With K3s Part 1: Installation) and
• Have Percona Server for MySQL running (Using Percona Kubernetes Operators With K3s Part 2: Percona Server for MySQL Operator)
• Monitoring with Percona Monitoring and Management (PMM): Using Percona Kubernetes Operators With K3s Part 3: Monitoring and PMM

I would like to introduce a project which brings Kubernetes observability to the next …

Codership is pleased to announce a new Generally Available (GA) release of the multi-master Galera Cluster for MySQL 5.7, consisting of MySQL-wsrep 5.7.38 (release notes, download). This release incorporates all changes to MySQL 5.7.39, adding a synchronous option for your MySQL High Availability solutions.

We have backported the InnoDB wsrep applier lock wait timeout from 8.0 which introduces the variable innodb-wsrep-applier-lock-wait-timeout to improve the reliability in resolving …

We’re ecstatic and energised about the prospect of sowing seeds of knowledge in our opensource database community.

Thank you to everyone who joined us for the 17th edition of MyWebinar. We hope that our time together helped to elevate and seam your work to perfection. We’re committed to giving back to the opensource database community in the coming days by presenting more LIVE events.

Maha Lakshmi Ganapathineedi from Mydbops was successful in making this event more interactive, engaging, and, most importantly, productive for the audience. Thank you for your continuous contribution to the opensource community.

Topic: Redo …

With MySQL Cluster you can now from version 8.0.31 use transparent data encryption (TDE). Together with the encrypted backup feature it encrypts all data persisted on disk for tables that uses the Ndb storage engine in MySQL. This complements other already existing features that encrypts data at rest in MySQL.

TDE encryption uses XTS-AES and is transparent to applications accessing the data via MySQL or directly using the C++ NdbAPI. The same application can run unmodified whether …

Once again, the latest version of MySQL 8.0 includes several contributions from the MySQL Community.

MySQL 8.0.31 was released on October 11th 2022.

I would like to thank all contributors on behalf of the entire Oracle MySQL team !

This new release contains patches from Facebook/Meta, Dennis Gao, Lou Shuai, Caza Zhang, Zhang Simon from Tencent, Dimitry Kudryavtsev, Rahul Malik from Percona, Alex Xing, Marcelo Altmann from Percona, Matthew Steeples, Adam Croot, Luis Pinto and Evgeniy Patlan from Percona for all his patches on MySQL Shell.

Here is the list of the above contributions and related bugs:

Replication

• #101056 – Ack_receiver may lost the slave semi-sync ack due to net timeout – Dennis Gao …

As I teach students how to create tables in MySQL Workbench, it’s always important to review the meaning of the checkbox keys. Then, I need to remind them that every table requires a natural key from our prior discussion on normalization. I explain that a natural key is a compound candidate key (made up of two or more column values), and that it naturally defines uniqueness for each row in a table.

Then, we discuss surrogate keys, which are typically ID column keys. I explain that surrogate keys are driven by sequences in the database. While a number of databases disclose the name of sequences, MySQL treats the sequence as an attribute of the table. In Object-Oriented Analysis and Design (OOAD), that makes the sequence a member of the table by composition rather than aggregation. Surrogate keys are also unique in the table but should never be used to determine uniqueness like the natural key. Surrogate keys are also candidate keys, like a …

In the previous part, we created our application and our 2 functions.

Now we need to create an API Gateway to be able to call these functions from outside OCI. Using a third party scheduler, our laptop, etc…

Before creating the gateway, we need to create some policy to allow the API Gateway to call our functions. I’ve tried to create the policy after, it seems to not work as expected.

Security

Dynamic Group

We need to create a Dynamic Group that will match our gateway:

The matching rule is checking the type of resource that should be ApiGateway and my compartment’s id:

All {resource.type='ApiGateway', resource.compartment.id = 'ocid1.compartment.oc1..xxxxxxxxx'}

Policy …

In my previous post, I explained how to deal with Performance_Schema and Sys to identify the candidates for Query Optimization but also to understand the workload on the database.

In this article, we will see how we can create an OCI Fn Application that will generate a slow query log from our MySQL Database Service instance and store it to Object Storage.

The creation of the function and its use is similar to the one explained in the …

MySQL is an outstanding database for online transaction processing. With suitable hardware, it is easy to execute more than 1M queries per second and handle tens of thousands of simultaneous connections. Many of the most demanding web applications on the planet are built on MySQL. With capabilities like that, why would MySQL users need anything else?  

Well, analytic queries for starters. Analytic queries answer important business questions like finding the number of unique visitors to a website over time or figuring out how to increase online purchases. They scan large volumes of data and compute aggregates, including sums, averages, and much more complex …