by Fernando Laudares Camargos | Apr 13, 2015 | Insight for DBAs, MySQL, Percona Live, Percona Software
I’ve started my long journey from Florianópolis, Brazil, to Santa Clara, California and I type this words while waiting for a connection flight. Next Wednesday, Daniel Guzmán Burgos and I will be presenting in the Percona Live MySQL Conference and Expo (PLMCE)....
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 Arunjith Aravindan | Mar 9, 2015 | MySQL, Percona Software
MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication. What is MySQL Replication? It’s the process of copying the (real-time events) data from one master...
by Hrvoje Matijakovic | Jan 26, 2015 | MySQL, Percona Events, Percona Software
Percona is pleased to announce the availability of Percona Toolkit 2.2.13. Released January 26, 2015. 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 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 Aurimas Mikalauskas | Nov 14, 2014 | Insight for DBAs, MySQL
This blog post was inspired by my visit at the annual Zabbix Conference in Riga, Latvia this year, where I gave a couple of talks on MySQL and beyond. It was a two-day single-track event with some 200 participants, a number of interesting talks on Zabbix (and related...
by Stephane Combaudon | Nov 4, 2014 | MySQL, Percona Software
Percona Toolkit’s pt-table-checksum is a great tool to find data inconsistencies between a MySQL master and its replicas. However it is sometimes not enough to know that there are inconsistencies and let pt-table-sync fix the issue: you may want to know which...
by Matthew Boehm | Oct 16, 2014 | MySQL, Percona Software
I recently had a client ask me how to use Percona Toolkit tools with an SSL connection to MySQL (MySQL-SSL). SSL connections aren’t widely used in MySQL due to most installations being within an internal network. Still, there are cases where you could be...
by Arunjith Aravindan | Oct 13, 2014 | MySQL, Percona Software
Percona Toolkit’s pt-table-checksum performs an online replication consistency check by executing checksum queries on the master, which produces different results on replicas that are inconsistent with the master – and the tool pt-table-sync synchronizes...
by Muhammad Irfan | Oct 8, 2014 | Insight for DBAs, MySQL, Percona Services
MySQL replication is a core process for maintaining multiple copies of data – and replication is a very important aspect in database administration. In order to synchronize data between master and slaves you need to make sure that data transfers smoothly, and to...
by Hrvoje Matijakovic | Sep 30, 2014 | MySQL, Percona Events, Percona Software
Percona is pleased to announce the availability of Percona Toolkit 2.2.11. Released on Sept. 25, 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 perform...
by Jervin Real | Sep 17, 2014 | Insight for DBAs, MySQL, Percona Software
I recently encountered a situation in which after running Percona Toolkit’s pt-table-checksum on a customer system, 95% of the table on the MySQL master was different on the MySQL slave. Although this table was not a critical part of the infrastructure, from...
by Muhammad Irfan | Sep 4, 2014 | Insight for DBAs, MySQL, Percona Services, Percona Software
Here on the Percona Support team we often ask customers to retrieve disk stats to monitor disk IO and to measure block devices iops and latency. There are a number of tools available to monitor IO on Linux. iostat is one of the popular tools and Percona Toolkit, which...
by Tim Sharp | Aug 25, 2014 | Insight for DBAs, MySQL, Percona Software
In a previous post, my colleague mission statement declares, the Trove project seeks to provide a scalable and reliable cloud database service providing functionality for both relational and non-relational database engines. With the current release of Icehouse, the...
by Matt Griffin | Aug 1, 2014 | Insight for DBAs, MySQL, Percona Services, Percona Software
MySQL plays a critical role in OpenStack. It serves as the host database supporting most components such as Nova, Glance, and Keystone and is the most mature guest database in Trove. Many OpenStack operators use Percona open source software including the MySQL drop-in...
by Kenny Gryp | Jul 9, 2014 | Insight for DBAs, MySQL, Percona Software
A while back, I made some changes to the plugin interface for pt-online-schema-change which allows custom replication checks to be written. As I was adding this functionality, I also added the –plugin option to pt-table-checksum. This was released in Percona...
by Daniel Nichter | May 5, 2014 | Insight for DBAs, MySQL, Percona Software, Webinars
Tools for MySQL are a vital part of any deployment, so it’s important to use ones that are reliable and well-designed. Percona Toolkit is a collection of more than 30 command-line tools for MySQL, Percona Server, and MariaDB that can help database administrators...
by Muhammad Irfan | Mar 14, 2014 | Insight for DBAs, MySQL
MySQL has a nice feature: MySQL slow query log, which allows you to log all queries that exceed a predefined about of time to execute. Peter Zaitsev first wrote about this back in 2006 – there have been a few other posts here on the MySQL Performance Blog since...
by Hrvoje Matijakovic | Mar 4, 2014 | MySQL, Percona Events, Percona Software
Percona is glad to announce the release of Percona Toolkit 2.1.11 on March 4th, 2013 (Downloads are available here). Bugs Fixed: Fixed bug 1279502: –version-check behaves like spyware The configuration for what information Percona Toolkit should retrieve is not...
