In this blog post, I will run a gh-ost benchmark against the performance of pt-online-schema-change.

When gh-ost came out, I was very excited. As MySQL ROW replication became commonplace, you could use it to track changes instead of triggers. This practice is cleaner and safer compared to Percona Toolkit’s pt-online-schema-change. Since gh-ost doesn’t need triggers, I assumed it would generate lower overhead and work faster. I frequently called it “pt-online-schema-change on steroids” in my talks. …

In this blog, we’ll look at ClickHouse on its one year anniversary.

It’s been a year already since the Yandex team released ClickHouse as open source software. I’ve had an interest in this project from the very start, as I didn’t think there was an open source analytical database that could compete with industry leaders like Vertica (for example).

This was an exciting year for ClickHouse early adopters. Let’s look at what it accomplished so far.

ClickHouse initially generated interest due to the Yandex name – the most popular search engine in Russia. It wasn’t long before jaw-dropping responses popped up: guys, this thing is crazy fast! Many early adopters who tried ClickHouse were really impressed.

Fast doesn’t mean convenient …

In this first of a series of blog posts, we’ll look at MySQL encryption at rest.

At Percona, we work with a number of clients that require strong security measures for PCI, HIPAA and PHI compliance, where data managed by MySQL needs to be encrypted “at rest.” As with all things open source, there several options for meeting the MySQL encryption at rest requirement. In this three-part series, we cover several popular options of encrypting data and present the various pros and cons to each solution. You may want to evaluate which parts of these tutorials work best for your situation before using them in production.

Part one of this series is implementing disk-level encryption using crypt+LUKS.

In MySQL 5.7, InnoDB has built-in encryption features. This solution has some cons, …

Join Percona’s CEO and Founder Peter Zaitsev as he presents MySQL In the Cloud: Migration, Best Practices, High Availability, Scaling on Wednesday, June 7, 2017, at 10 am PDT / 1:00 pm EDT (UTC-7).

Register Now

Businesses are moving many of the systems and processes they once owned to offsite “service” models: Platform as a Service (PaaS), Software as a Service (SaaS), Infrastructure as a Service (IaaS), etc. These services are usually referred to as being “in the cloud” – meaning that the infrastructure and management of the service in …

I will be at several events in June 2017:

• db tech showcase 2017 – 16-17 June 2017 – Tokyo, Japan. I’m giving a talk about best practices around MySQL High Availability.
• O’Reilly Velocity 2017 – 19-22 June 2017 – San Jose, California, USA. I’m giving a tutorial about best practices around MySQL High Availability. Use code CC20 for a 20% discount.

I look forward to meeting with you at either of these events, to discuss all things MySQL (High Availability, security, cloud, etc.), and how Percona can help you.

As I write this, I’m in Budva, Montenegro, for the Percona engineering meeting.

This blog post is a summary of the Percona Software and Roadmap Update – Q2 2017 webinar given by Peter Zaitsev on May 4, 2017. This webinar reflects changes and updates since the last update (Q1 2017).

A full recording of this webinar, along with the presentation slide deck, can be found here.

Percona Software

Below are the latest and upcoming features in Percona’s software. All of Percona’s software is 100% free and open source, with no …

It was a big April if you’re in the MySQL ecosystem, so am looking forward to other events that have different focus and a different base, so to speak. See you at:

• rootconf – May 11-12 2017 – Bangalore, India. My first Rootconf was last year, and it was a great event; I look forward to going there again this year, to talk about capacity planning for your databases. If you register with this link you get a 10% discount.
• Open Source Data Center Conference – May 16-18 2017 – Berlin, Germany. I’ve enjoyed my trips to OSDC in the last few years, and they’re on their last tickets now …

CentOS 7 Systemd issue with Percona Cluster is that SST fails to sync the nodes, unable to join cluster group and giving the misleading broken pipe 32 SIG errors.

The post How to Resolve Systemd Issue with Percona XtraDB Cluster on CentOS 7 appeared first on Datavail.

Please join Percona’s Consultant David Ducos on Thursday, December 29, 2016 at 10 am PST/ 1:00 pm EST (UTC-8) as he presents JSON in MySQL 5.7.

Since it was implemented in MySQL 5.7, we can use JSON as a data type. In this webinar, we will review some of the useful functions that have been added to work with JSON.

We will examine and analyze how JSON works internally, and take into account some of the costs related to employing this new technology. 

At the end of the webinar, you will know the answers to the following questions: 

• What is JSON?
• Why don’t we keep using VARCHAR?
• How does it work? 
• What are the costs?
• What limitations should we take …

Tab housekeeping but I also realise that people seem to have missed announcements, developments, etc. that have happened in the last couple of months (and boy have they been exciting). I think we definitely need something like the now-defunct MySQL Newsletter (and no, DB Weekly or NoSQL Weekly just don’t seem to cut it for me!).

MyRocks

During @scale (August 31), Yoshinori Matsunobu mentioned that MyRocks has been deployed in one region for 5% of its production workload at Facebook.

By October 4 at the …