Right-sizing database instances is the process of adjusting your database instances’ size to match the workload generated by the application. In most cases, the incentive to right-size your database instances will be to lower the cloud infrastructure’s costs, ideally without compromising on performance.

In this post we’ll guide you through how to analyze the instance’s used resources, in an effort to identify opportunities to save on your RDS costs.

How to identify memory related down-sizing opportunities

MySQL has a lot of “moving parts” which may contribute to the amount of memory it needs to operate efficiently. Just to list a few of the most impactful factors: fixed-size buffers (query cache, innodb buffer pool size), the database’s workload (query connections, query buffers), replication internals (replication connections, binary log caches) and more.

When looking for down-sizing opportunities, …

Author: Scott Stone

We are pleased to announce the general availability of SQL Diagnostic Manager for MySQL 8.9. Existing users may upgrade to this version through the Idera Customer Portal. New users may download the trial version from the Idera Website or the Monyog Website.

Rebranded from the popular Monyog product for monitoring performance of MySQL and other MySQL compatible databases, SDM for MySQL is  a comprehensive solution to monitor, alert, and diagnose the availability, health, and performance of MySQL, or MariaDB in physical, virtual, and cloud environments.

SQL Diagnostic Manager for MySQL addresses the most critical performance …

In this Angular 9 tutorial, we'll learn to build an Angular 9 CRUD example application going through all the required steps from creating/simulating a REST API, scaffolding a new project, setting up the essential APIs, and finally building and deploying your final application to the cloud.

We'll learn by example how to send GET requests with URL query strings and parameters and process HTTP responses from REST API servers in your Angular 9/8 application using Httplient for fetching and consuming JSON data, how to do error handling for HTTP errors using the RxJS throwError() and catchError() operators, how to retry failed HTTP requests in poor network connections and cancel pending requests using the RxJS retry() and takeUntil() operators, and finally how to deploy the application to Firebase hosting using the latest Angular 8.3+ features. We'll also see how to use Angular services and RxJS Observables, and learn how to set up Angular …

Starting with version 8.0.18 the MySQL Workbench source package finally ships also all our GPL unit and integration tests, which we are using internally to control code quality. For that we had first to replace our old, outdated testing framework by something new and more appropriate. We evaluated quite a few C++ testing frameworks but found them either not to be sufficient or difficult to use. Instead we had something in mind that comes close to the Jasmine framework which is widely used among JS developers. The way it hides all the boring test management details and the clear structure it uses, was quite an inspiration for us and we decided to develop our own testing framework modeled after that.

Casmine – C++17 BDD Testing Framework

Casmine is a C++ unit and integration testing …

Production interruptions are nearly guaranteed to happen at some point in time. We know it so we plan backups, create recovery standby databases, convert single instances into clusters.

Admitting the need for a proper recovery scenario, we must analyze the possible disaster timeline and failure scenarios and implement steps to bring your database up. Planned outage execution can help prepare, diagnose, and recover from the next one. To mitigate the impact of downtime, organizations need an appropriate recovery plan, which would include all factors required to bring service into life.

Backup Management is not as mild as just scheduling a backup job. There are many factors to consider, such as retention, storage, verification, and whether the backups you are taking are physical or logical and what is easy to overlook security. 

The Call For Papers (CFP) for Percona Live 2020 is now open!

DEADLINE EXTENDED TO WEDNESDAY, January 22.

Percona Live will be held in Austin, Texas from Monday, May 18 through Wednesday, May 20, 2020 at a new venue, the AT&T Hotel and Conference Center. The CFP is open for submissions from November 27, 2019, through January 13  22, 2020. We invite abstracts covering any and all aspects of open source databases, including on-premise, in the cloud, and across the multi-verse!

Hot Open Source Topics for 2020

All Open Source database themes are welcome, but these are our hot topics for 2020:

• Success in the multi-verse: How to optimize performance, architecture, high-availability, replication, and …

MySQL does its best to return requested bytes as fast as possible. However, it needs human help to identify what is important and should be accessed in the first place. Queries, written smartly, can significantly outperform automatically generated ones. Indexes and Optimizer statistics, not limited to the Histograms only, help increase the speed of the query.

Join Percona’s Principal Support Engineer for MySQL Sveta Smirnova on Thurs, Dec 5th from 10 to 11 am PST to learn how MySQL query performance can be improved through the utilization of Developer and DevOps tools. In addition, you’ll learn troubleshooting techniques to help identify and solve query performance issues.

Register Now

If you can’t attend, sign up …

Geo-scale MySQL – or how to build a global, multi-region MySQL cloud back-end capable of serving several hundred million player accounts

This blog introduces a series of blogs we’ll be publishing over the next few months that discuss a number of different customer use cases that our solutions support and that centre around achieving continuous MySQL operations with commercial-grade high availability (HA), geographically redundant disaster recovery (DR) and global scaling.

This first use case looks at a customer of ours who are a global gaming company with several hundred million world-wide player accounts.

What is the challenge?

How to reliably, and fast, cater to hundreds of millions of game players around the world? The challenge here is to serve a game application for a geographically-distributed audience; in other words, a pretty unique challenge.

It requires fast, local response times …

Author: Robert Agar

MySQL is one of the most popular and widely used database platforms in the world. If you are a DBA or database developer, there is a very high probability that at least some of the systems under your purview are powered by MySQL. The standard tasks such as user administration and ensuring that the databases are backed up and can be restored are important facets of your daily responsibilities. You will also be charged with maintaining a high level of performance that addresses the concerns of the database’s users.

Creating backup jobs and setting up new user accounts are fairly straightforward tasks that should not be overly challenging to an experienced DBA. Even if you do not have extensive experience with MySQL, you will very quickly become comfortable with any idiosyncrasies that the platform presents. Performance tuning, on the other hand, can be a complicated undertaking. It can …

Hello dear MySQL Community ! As you know FOSDEM 2020 will take place February 1st and 2nd. After having received many, many requests we decided to organize for the 4th year in a row the pre-FOSDEM MySQL Day… with a big change, for this edition the event will be called “pre-FOSDEM MySQL Days” !

We have decided to extend that extra day related to the world’s most popular open source database to 2 days: 30th and 31st of January at the usual location in Brussels.

We will also have the usual sessions track but most probably a second room for those who would like to get their hands dirty in the code !!

Please don’t forget to register as soon as possible as you may already know, the seats are limited !

Register on eventbrite: …