Introduction 

MySQL Enterprise Backup (MEB) is a highly efficient tool for taking backups of your MySQL databases. In the 3.11.0 release, we are taking that one step further by introducing a new concept called "optimistic" backup. Optimistic backup leverages the patterns we saw frequently especially as related to very large databases.

For backups the goals are:

1 - Quality and Consistency - the backup and more importantly the restore just "works".
2 - Size, time, and overhead - like in the game of golf - low score wins - for backups and for
     restores.
3 - Flexibility – It’s not always one size fits all - whether how the backup is run, where it goes,
     how it is recovered.

With optimistic backup - we look at mostly the read aspects of your database to enable us to create a backup that is smaller, faster to backup, faster to …

I’ve just released the 1.1.0 version of the MySQL sys schema.

This release is hugely pleasing to me, in that I actually didn’t have to do too much work on it myself! There were a significant number of contributions from Jesper Wisborg Krogh and Arnaud Adant, both MySQL Support Engineers (at the time at least, Arnaud has moved on to pastures new now), as well as again from Joe Grasse.

Thank you all for your contributions!

Here’s a summary of the changes:

Improvements

• Added host summary views, which have the same structure as the user summary views, but aggregated by host instead (Contributed by Arnaud Adant)
  • host_summary
  • host_summary_by_file_io_type
  • host_summary_by_file_io
  …

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 is free, contains the pt-diskstats tool for this purpose. The pt-diskstats tool is similar to iostat but it’s more interactive and contains extended information. pt-diskstats reports current disk activity and shows the statistics for the last second (which by …

Join me online next week (September 10 at 10 a.m. PDT) for my live webinar on Migrating to Percona XtraDB Cluster.  This was a popular webinar that I gave a few years ago, so I’m doing it again with updates for Percona XtraDB Cluster 5.6 (PXC) and all the latest in the Galera world.

This webinar will be really good for people interested in getting an overview of what PXC/Galera is, what it would take to adopt it for your application, and some of the differences and challenges it brings compared with a conventional MySQL Master/slave setup.  I’d highly suggest attending if you are considering Galera in your environment …

Download MariaDB Galera Cluster 10.0.13

Release Notes Changelog What is MariaDB Galera Cluster?

MariaDB APT and YUM Repository Configuration Generator

The MariaDB project is pleased to announce the immediate availability of MariaDB Galera Cluster 10.0.13. This is a Stable (GA) release.

See the …

Spil Games hackday At Spil Games we organise a monthly hackday (actually the last two Thursday/Friday of the month) where several teams try to hack something in limited amount of time. The only rules for the hackday are: make something cool, keep it simple, document it, learn something and have fun. In general it means time is […]

The post Spil Games hackday: research MaxScale appeared first on Spil Games Engineering.

September 3, 2014 By Severalnines

Running your database cluster on AWS is a great way to adapt to changing workloads by adding/removing instances, or by scaling up/down each instance. At Severalnines, we talk much more about scale-out than scale up, but there are cases where you might want to scale up an instance instead of scaling out. 

In this post, we’ll show you how to change instance sizes with respect to RAM, CPU and IOPS, and how to tune your Galera nodes accordingly. Moreover, this post assumes that instances are launched using Amazon VPC.

When do we need to upgrade an instance?

You typically need to upgrade an instance when you run out of server resources. This includes CPU, RAM, storage capacity, disk throughput and bandwidth. You must allow enough headroom for …

Schedule Builder allows you to effectively plan your conference and pre-enrol in MySQL Central sessions you want to attend. In addition to the keynotes, you can schedule your attendance to conference sessions delivered by Oracle's MySQL engineers, MySQL customers, community members and partners, as well as plan to attend tutorials, hands-on labs and Birds-of-a-Feather sessions. Plus, you can also plan to join all the Oracle OpenWorld keynotes, extensive content and entertainment!

The MySQL Central "Focus On" document provides you an overview of the MySQL Central content (note that one additional tutorial will shortly be added to the doc so …

We are pleased to announce our attendance at the PyCon New Zealand in Wellington, New Zealand, on September 12-14, 2014! This time we do not have a booth, but will be very actively going around and talk to you. Find our staff wearing MySQL t-shirt!

Anyway if you are interested our colleague from the Solaris Modernization team, James C. McPherson is going to have a talk on Why Python rocks Solaris. Come to hear James' talk scheduled for Saturday, Sep 13 @ 11:20 am (Track 1). 

Let me start by saying a big “thank you” to the staff at Oracle for deciding to open source reducer.sh. It’s a tool I developed whilst I was working for them several years ago. Its sole purpose is to do one thing – but do it good: test-case simplification.

So, let’s say some customer just sent you 120,000 lines of SQL code and affirms that “it definitely causes a crash.” Or maybe you ran RQG (the Random Query Generator) for awhile (with the general query log turned on) and now you have a nice SQL trace which may just lead to that crash the run resulted in. Or you’re a DBA testing the company’s usual queries with Valgrind, and noticed that 2 in 1000 queries give a Valgrind warning in the mysqld error log – you’re just not sure which one. Or maybe you’re a developer, and during testing you saw that a SELECT query output did not look the way it should – the output was “7″ where it should have been “5″ – the …