by Jay Janssen | Dec 5, 2014 | Benchmarks, MySQL, Percona Software
Introducing Consul I’m always interested in what Mitchell Hashimoto and Hashicorp are up to, I typically find their projects valuable. If you’ve heard of Vagrant, you know their work. I recently became interested in a newer project they have called...
by Peter Boros | Dec 4, 2014 | Insight for DBAs, MySQL, Webinars
Fact: MySQL is the most commonly used database in OpenStack deployments. Of course that includes a number of MySQL variants – standard MySQL by Oracle, MariaDB, Percona Server, MySQL Galera, Percona XtraDB Cluster, etc. However, there are many misconceptions and...
by Tom Diederich | Dec 4, 2014 | MySQL, Percona Events, Percona Live
You know you’ll be there so why not save some $$ by registering now for the Percona Live MySQL Conference & Expo 2015 (April 13-16 in Santa Clara, Calif.). Super Saver registration discounts are available through Dec. 14 at 11:30 p.m. PST. (That’s just 10...
by Jay Janssen | Dec 3, 2014 | MySQL, Percona Software
One new feature in Percona XtraDB Cluster (PXC) in recent releases was the inclusion of the ability for an existing cluster to auto-bootstrap after an all-node-down event. Suppose you lose power on all nodes simultaneously or something else similar happens to your...
by Andrew Moore | Dec 2, 2014 | Insight for DBAs, MySQL, Percona Services
This post is a follow-up to my November 19 webinar, “Tips from the Trenches: A Guide to Preventing Downtime for the Over-Extended DBA,” during which I described some of the most common reasons DBAs experience avoidable downtime. The session was aimed at...
by Stephane Combaudon | Dec 1, 2014 | Insight for DBAs, MySQL, Percona Software
By default in MySQL 5.6, each time MySQL is started (regular start or crash recovery), it iterates through all the binlog files when GTIDs are not enabled. This can take a very long time if you have a large number of binary log files. MySQL and Percona Server 5.6.21+...
by Peter Zaitsev | Nov 26, 2014 | Benchmarks, MySQL
Often enough I find MySQL benchmark results where the difference between results is 1% or even less and some conclusions are drawn. Now it is not that 1% is not important – especially when you’re developing the product you should care about those 1%...
by Hrvoje Matijakovic | Nov 25, 2014 | MySQL, Percona Events, Percona Software
Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on Novmeber 25th 2014. Binaries are available from downloads area or from our software repositories. We’re also happy to announce that Ubuntu 14.10 and CentOS 7 users can download, install, and...
by Jay Janssen | Nov 25, 2014 | MySQL, Security
I log into a lot of different servers running MySQL and one of the first things I do is create a file in my home directory called ‘.my.cnf’ with my credentials to that local mysql instance: [client] user=root password=secret 123...
by Hrvoje Matijakovic | Nov 24, 2014 | MySQL, Percona Events, Percona Software
Percona is glad to announce the release of Percona Server 5.6.21-70.1 on November 24, 2014. Download the latest version from the Percona web site or from the Percona Software Repositories. Based on MySQL 5.6.21, including all the bug fixes in it, Percona Server...
by Stephane Combaudon | Nov 24, 2014 | Insight for DBAs, MySQL
People using OpenStack Trove instances can hit a common issue in the MySQL world: how to perform schema change operations while minimizing the impact on the database server? Let’s explore the options that can allow online schema changes. Summary With MySQL 5.5,...
by Jay Janssen | Nov 21, 2014 | Cloud, MySQL, Percona Software
I’m happy to announce that Google has added Click-to-deploy functionality for Percona XtraDB Cluster (PXC) on Google Cloud Compute nodes. This gives you the ability to rapidly spin up a cluster for experimentation, performance testing, or even production use on...
by Miguel Angel Nieto | Nov 20, 2014 | Insight for DBAs, MySQL
Performance Schema (P_S) has been available since MySQL 5.5, more than 4 years ago. It is still difficult to see production servers with P_S enabled, even with MySQL 5.6 where the feature is enabled by default. There have been several complaints like the overhead,...
by Arunjith Aravindan | Nov 19, 2014 | Insight for DBAs, MySQL, Percona Software
You might have encountered situations where you had to kill some specific select queries that were running for long periods and choking the database. This post will go into more detail with an example of report query offloading. Report query (select) offloading to a...
by Andrew Moore | Nov 18, 2014 | Insight for DBAs, MySQL, Percona Services
MySQL table alterations can interrupt production traffic causing bad customer experience or in worst cases, loss of revenue. Not all DBAs, developers, and syadmins know MySQL well enough to avoid this pitfall. DBAs usually encounter these kinds of production...
by Peter Zaitsev | Nov 18, 2014 | Benchmarks, MySQL
Starting with MySQL 5.6 there is an INNODB_METRICS table available in INFORMATION_SCHEMA which contains some additional information than provided in the SHOW GLOBAL STATUS output – yet might be more lightweight than PERFORMANCE_SCHEMA. Too bad INNODB_METRICS was...
by Hrvoje Matijakovic | Nov 17, 2014 | MySQL, Percona Events, Percona Software
Percona is pleased to announce the availability of Percona Toolkit 2.2.12. Released on November 14, Percona Toolkit is a collection of advanced command-line tools to perform a variety of MySQL server and system tasks that are too difficult or complex for DBAs to...
by Stephane Combaudon | Nov 17, 2014 | Insight for DBAs, MySQL
Even if a Galera node looks like a regular MySQL server, the underlying replication mechanism is very different. This implies some changes in the way you have to configure the Galera nodes. Here are some of the most common misconceptions about Galera when using this...
by Matt Griffin | Nov 14, 2014 | Benchmarks, Insight for DBAs, Insight for Developers, MySQL, Percona Software
One of the big announcements at the Amazon Web Services re:Invent 2014 conference this week was the unveiling of Aurora. The result of years of internal work, Aurora, currently in preview, is a MySQL 5.6-compatible option that “combines the speed and availability of...
by Jay Janssen | Nov 14, 2014 | Insight for DBAs, MySQL, Percona Software
Thanks to all who attended my Nov. 12 webinar titled, “Percona XtraDB Cluster as a MySQL HA Solution for OpenStack.” I had several questions which I covered at the end and a few that I didn’t. You can view the entire webinar and download the slides...
