Percona is glad to announce the release of Percona Toolkit 2.2.9 on July 10, 2014 (downloads are available here and from the Percona Software Repositories). This release is the current GA (Generally Available) stable release in …[Read more...]
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 Toolkit 2.2.8.
With these additions, I spent some time writing a plugin that allows Percona Toolkit tools …[Read more...]
We recently open-sourced our percona-agent and if you check out the source code, you’ll find that it is written in the Go programming language (aka Golang). For those not up to speed, the percona-agent is a real-time client-side agent for Percona Cloud Tools.
Our requirements are quite demanding for our agents. This one is software that works on a real production server, so it must be fast, reliable, lightweight and easy to distribute. Surprisingly enough, …[Read more...]
Whither your rollback plan?
MySQL 5.6 upgrades are in full swing these days and knowing how to safely upgrade from MySQL 5.5 to 5.6 is important. When upgrading a replication environment, it’s important that you can build a migration plan that safely allows for your upgrade with minimal risk — rollback is often a very important component to this.
For many people this means upgrading slaves first and then the master. The strategy of an older master replicating to a newer slave is well known and has been …[Read more...]
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 automate a variety of database and system tasks. With so many available tools, however, it can be difficult knowing where to start.
For this reason I invite you …[Read more...]
I’d like to congratulate Canonical with the new Ubuntu 14.04
LTS (Trusty Tahr) Release, it really looks like a great
release, and I say it having my own agenda It looks even more
great because it comes with a full line of Percona
If you install Ubuntu 14.04 and run
you will find:
Working as a Percona Support Engineer, every day we are seeing lots of issues related to MySQL replication. One very common issue is slave lagging. There are many reasons for slave lag but one common reason is that queries are taking more time on slave then master. How to check and log those long-running queries? From MySQL 5.1, log-slow-slave-statements variable was introduced, which you can …[Read more...]