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Quest for Better Replication in MySQL: Galera vs. Group Replication

 | February 24, 2017 |  Posted In: Group Replication, High-availability, Insight for DBAs, Insight for Developers, MySQL, Percona XtraDB Cluster, Replication

Group Replication

UPDATE: Some of the language in the original post was considered overly-critical of Oracle by some community members. This was not my intent, and I’ve modified the language to be less so. I’ve also changed term “synchronous” (which the use of is inaccurate and misleading) to “virtually synchronous.” This term is more accurate and already used by both […]

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WAN Synchronous Clusters: Dealing with Latency Using Concurrency

 | February 1, 2017 |  Posted In: Group Replication, Insight for DBAs, Insight for Developers, MySQL, Percona XtraDB Cluster, Replication

WAN Latency

In this blog, we’ll discuss how to use concurrency to help with WAN latency when using synchronous clusters. WAN Latency Problem Our customers often ask us for help or advice with WAN clustering problems. Historically, the usual solution for MySQL WAN deployments is having the primary site in one data center, and stand-by backup site in […]

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How to Manually Build Percona Server for MySQL RPM Packages

and  | January 20, 2017 |  Posted In: Insight for Developers, MySQL

In this blog, we’ll look at how to manually build Percona Server for MySQL RPM packages. Several customers and other people from the open source community have asked us how they could make their own Percona Server for MySQL RPM binaries from scratch. This request is often made by companies that want to add custom patches […]

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Don’t Let a Leap Second Leap on Your Database!

 | December 27, 2016 |  Posted In: Insight for DBAs, Insight for Developers, MongoDB, MySQL

Leap Second

This blog discusses how to prepare your database for the new leap second coming in the new year. At the end of this year, on December 31, 2016, a new leap second gets added. Many of us remember the huge problems this caused back in 2012. Some of our customers asked how they should prepare for this year’s event […]

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MongoDB PIT Backups In Depth

 | December 16, 2016 |  Posted In: Cloud and NoSQL, High-availability, Insight for DBAs, Insight for Developers, MongoDB, open source databases, Percona Server, Solutions Engineering

MongoDB PIT Backups

In this blog is an in-depth discussion of MongoDB PIT backups. Note: INTIMIDATION FREE ZONE!! This post is meant to give the reader most of the knowledge that is needed to understand the material. This includes basic MongoDB knowledge and other core concepts. I have tried to include links for further research where I can. […]

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High Availability Poll Results

 | August 2, 2016 |  Posted In: High-availability, Insight for Developers

high availability poll

This blog reports the results of Percona’s high availability poll. High availability (HA) is always a hot topic. The reality is that if your data is not available, your customers cannot do business with you. In fact, estimates show the average cost of downtime is about $5K per minute. With an average outage taking 40 […]

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MySQL Quality Assurance: A Vision for the Future by Roel Van de Paar (Final Episode 13)

 | August 13, 2015 |  Posted In: Insight for DBAs, Insight for Developers, MySQL, Quality Assurance

MySQL Quality Assurance

Welcome to the final – but most important – episode in the MySQL QA Series. In it, I present my vision for all MySQL Quality Assurance – for all distributions – worldwide. Episode 13: A Better Approach to all MySQL Regression, Stress & Feature Testing: Random Coverage Testing & SQL Interleaving 1. pquery Review 2. Random […]

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MySQL QA Episode 12: My server is crashing… Now what? For customers or users experiencing a crash

 | August 11, 2015 |  Posted In: Insight for DBAs, Insight for Developers, MySQL, Quality Assurance

My server is crashing… Now what? This special episode in the MySQL QA Series is for customers or users experiencing a crash. A crash? Cheat sheet: https://goo.gl/rrmB9i Sever install & crash. Note this is as a demonstration: do not action this on a production server! sudo yum install -y http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm sudo yum install -y Percona-Server-client-56 Percona-Server-server-56 sudo service […]

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