by Stephane Combaudon | May 5, 2015 | MySQL
Being schemaless is one of the key features of MongoDB. On the bright side this allows developers to easily modify the schema of their collections without waiting for the database to be ready to accept a new schema. However schemaless is not free and one of the...
by Francisco Bordenave | May 4, 2015 | Insight for DBAs, MariaDB, MySQL
MySQL replication isn’t perfect and sometimes our data gets out of sync, either by a failure in replication or human intervention. We are all familiar with Percona Toolkit’s pt-table-checksum and pt-table-sync to help us check and fix data inconsistencies...
by Stephane Combaudon | Apr 28, 2015 | Insight for DBAs, MySQL, Percona Software
I often talk with people who are very interested in the features of Percona XtraDB Cluster (PXC) such as synchronous and parallel replication, multi-node writing and high availability. However some get confused when operating a real PXC cluster because they do not...
by Tom Diederich | Apr 24, 2015 | MySQL, Percona Events, Percona Live
With highlights that included news of Percona’s acquisition of Tokutek, a lively keynote discussion with Apple legend Steve “Woz” Wozniak, scores of technical sessions, tutorials and a festive MySQL community dinner and game night, last week’s...
by Peter Zaitsev | Apr 21, 2015 | Insight for DBAs, MySQL, Webinars
MySQL sharding is one of the most used and surely the most abused MySQL scaling technology. My April 2 Dzone article, “To Shard, or Not to Shard,” proved there is indeed quite an interest in this topic. As such, I’m hosting a live webinar tomorrow...
by Peter Zaitsev | Apr 14, 2015 | MySQL
It is my pleasure to announce that Percona has acquired Tokutek and will take over development and support for TokuDB® and TokuMX™ as well as the revolutionary Fractal Tree® indexing technology that enables those products to deliver improved performance, reliability...
by Peter Zaitsev | Apr 14, 2015 | MySQL
It is my pleasure to announce that Percona has acquired Tokutek and will take over development and support for TokuDB® and TokuMX™ as well as the revolutionary Fractal Tree® indexing technology that enables those products to deliver improved performance, reliability...
by Jervin Real | Apr 10, 2015 | Benchmarks, MySQL, Percona Software
A few years back Deva wrote about how to use tcpdump on very busy hosts. That post sparked my interest about exploring how to measure the impact of tcpdump on very busy hosts. In this post, I wanted to highlight how much of an impact there really is and what options...
by Nilnandan Joshi | Apr 9, 2015 | MySQL, Percona Live
Recently, I was working on one of the issue related to locks and deadlocks with InnoDB tables and I found very interesting details about how InnoDB locks and deadlocks works with or without index for different Isolation levels. Here, I would like to describe a small...
by Matt Griffin | Apr 8, 2015 | Insight for DBAs, MySQL, Percona Live, Percona Software
In April and May, Percona will hold and participate in two OpenStack events: OpenStack Summit. Join our talks at these events in Santa Clara and Vancouver for new insights into the MySQL operations of the core of OpenStack as well as the latest information on MySQL...
by Matt Yonkovit | Apr 6, 2015 | MySQL, Percona Services
Every day hundreds of millions of dollars are wasted by allowing improperly tuned or misconfigured systems, misunderstood infrastructure, and inefficient IT operations to live and thrive in data centers around the globe. There are both direct and indirect costs...
by Michael Coburn | Apr 3, 2015 | MySQL
On a recent engagement I worked with a customer who makes extensive use of UUID() values for their Primary Key and stores it as char(36), and their row count on this example table has grown to over 1 billion rows. The table is INSERT-only (no UPDATEs or DELETEs), and...
by Hrvoje Matijakovic | Mar 31, 2015 | MySQL, Percona Events, Percona Software
Percona is glad to announce the release of Percona XtraBackup 2.2.10 on March 31, 2015. Downloads are available from our download site or Percona Software Repositories. Percona XtraBackup enables MySQL backups without blocking user queries, making it ideal for...
by Peter Zaitsev | Mar 27, 2015 | MySQL
TechCrunch reported yesterday that Apple has acquired FoundationDB. And while I didn’t see any mention if this news on the FoundationDB website, they do have an announcement saying: “We have made the decision to evolve our company mission and, as of today,...
by Matt Griffin | Mar 24, 2015 | MySQL, Percona Live, Percona Services, Percona Software
Percona Toolkit is one of our most mature open source applications. Derived from Maatkit and Aspersa, Percona Toolkit has evolved significantly over the years. The software now contains 32 tools, over 4,000 tests, and has been downloaded over 250,000 times. Anyone who...
by Stephane Combaudon | Mar 19, 2015 | MongoDB, MySQL, Webinars
MongoDB 3.0 was recently released. Instead of focusing on what’s new – that is so easy to find, let’s rather talk about something that has not changed a lot since the early MongoDB days. This topic is sharding and most specifically: how to choose a...
by George O. Lorch III | Mar 18, 2015 | Insight for DBAs, MySQL, Percona Live
So you want to contribute to OpenStack? I can help! For the last year or so I have been involved with OpenStack and more specifically the Trove (DBaaS) project as sort of an ambassador for Percona, contributing bits of knowledge, help and debugging wherever I could...
by Muhammad Irfan | Mar 16, 2015 | MySQL, Percona Services
One of our Percona Support customers recently reported that Percona XtraBackup failed with a page corruption error on an InnoDB table. The customer thought it was a problem or bug in the Percona XtraBackup tool. After investigation we found that an InnoDB page was...
by Stephane Combaudon | Mar 13, 2015 | Insight for DBAs, MySQL, Percona Software, Webinars
My webinar “Multi-threaded Replication in MySQL 5.6 and 5.7” on February 25 generated several excellent questions following the presentation (available an online migration to GTIDs and that’s why here.
by Mike Benshoof | Mar 13, 2015 | Insight for Developers, MySQL
Geographic information systems (GIS) are used by application developers to incorporate geographic information into their datasets to create apps with cool features such finding the address to the best steakhouse in town or the locations of local points of historical...
