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Displaying posts with tag: Open Source (reset)
Webinar Replay & Slides: Galera Cluster Best Practices - Zero Downtime Schema Changes

December 5, 2013 By Severalnines

 

Thanks to everyone who attended yesterday’s webinar; if you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

 

Thanks again to our speaker, Seppo Jaakola from Codership, the creators of Galera Cluster, for this in-depth talk on Galera Cluster Best Practices - Zero Downtime Schema Changes.

 

Webinar topics covered

  • How to perform Zero Downtime Schema Changes
  • 2 main methods: TOI and RSU
  • Total Order Isolation: predictability and consistency
  • Rolling Schema Upgrades
  • pt-online-schema-change
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Kuali — Open Source Model Evolves

Kauli – Open Source Grown Up

Kuali is proof that the Open Source model works for more than nerds and geeks. Kuali is a movement where colleges and universities pool resources to develop the software they need to run their institutions. The parties involved provide money and bodies to work on the various projects. And if an school needs a feature in a hurry, they provide money or bodies to get the work done. This is a highly collaborative effort spans the globe.

Many of these same schools found themselves locked into very expensive software that had to be extensively tailored to meet their needs. Each upgrade was an expensive and time consuming process in an era of shrinking staffs and budgets. Regular upgrades were needed to support changes in regulations or latent needs. The cost of upgrades and customization was taking too much of scarce funds. This drove them into an open …

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Severalnines at Percona Live London 2013: MySQL Cluster Performance Tuning, exhibitor space with live demos, discount code...

November 4, 2013 By Severalnines Percona Live London MySQL Conference - 11-12th November, 2013

We’re particularly excited about this year’s Percona Live London MySQL Conference. The line-up of speakers & topics looks excellent and it’s good to see speakers from Oracle, Percona, the MariaDB Foundation (amongst others) scheduled at the same event. It demonstrates not just the diversity of the ever broadening MySQL ecosystem, but also the fact that there really is room for everyone to contribute, participate in and advance MySQL in manifold directions while still retaining a certain amount of uniformity.

And this is how we will be contributing to the event ...

 

Talk - MySQL Cluster Performance Tuning By Johan Andersson, CTO & Co-Founder, Severalnines

Correct tuning of MySQL NDB Cluster can have dramatic impact on …

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November 6 Webinar: 5 Pitfalls to Avoid with MySQL and Big Data

You love MySQL for its ease of deployment – but are you worried about how your application will perform when it starts to scale?

SPEAKER: Gerry Narvaja, Tokutek
DATE: Wednesday, November 6th
TIME: 1pm ET
Register Now!

Join this interactive webinar with Gerry Narvaja of Tokutek as he walks through the potential pitfalls when using MySQL for Big Data applications, how you can avoid unnecessary tolls on time and resources and tips on how to get the most out of your MySQL applications with open source TokuDB.

Attend this webinar to learn how to:

  • dramatically increase performance without having to rewrite code
  • reduce the total cost of your servers and flash/SSD storage
  • perform hot schema changes

The …

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Data Analytics at NBCUniversal. Interview with Matthew Eric Bassett.

“The most valuable thing I’ve learned in this role is that judicious use of a little bit of knowledge can go a long way. I’ve seen colleagues and other companies get caught up in the “Big Data” craze by spend hundreds of thousands of pounds sterling on a Hadoop cluster that sees a few megabytes [...]

OQGraph and TokuDB

Today, while at Oracle's MySQL Connect conference in San Francisco, I had the opportunity to talk to Gerardo Narvaja and that inspired me to try using OQGraphv3 and TokuDB. Of course, the first challenge is to compile it on my MacBook which has MacOS Lion 10.7. I installed the Apple's latest XCode Command Line tools and eventually compiled a MariaDB which had both TokuDB and OQGraph available

Introducing audit_login: simple MySQL login logfile based auditing

audit_login is a simple MySQL login auditing plugin, logging any login or login attempt to log file in JSON format.

It seems that audit plugins are all the rage lately... We've developed out simple plugin a month ago as part of our database securing efforts; by auditing any login or login attempt we could either intercept or later investigate suspicious logins.

However we quickly realized there is much more to be gathered by this info.

In very short, you install this plugin onto your MySQL server, and your server starts writing into a text file called audit_login.log entries such as follows:

{"ts":"2013-09-11 …
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QA and bug fixing for OQGraph

Just mentioning it here because hard work deserves to be recognised and mentioned: Andrew McDonnell is doing an awesomely good job of testing, understanding and fixing bugs in OQGraph... which is no mean feat because the core of the code is based on the Boost Graph Library which isn't a trivial C++ library.

Converting an OLAP database to TokuDB, part 1

This is the first in a series of posts describing my impressions of converting a large OLAP server to TokuDB. There's a lot to tell, and the experiment is not yet complete, so this is an ongoing blogging. In this post I will describe the case at hand and out initial reasons for looking at TokuDB.

Disclosure: I have no personal interests and no company interests; we did get friendly, useful and free advice from Tokutek engineers. TokuDB is open source and free to use, though commercial license is also available.

The case at hand

We have a large and fast growing DWH MySQL setup. This data warehouse is but one component in a larger data setup, which includes Hadoop, Cassandra and more. For online dashboards and most reports, MySQL is our service. We populate this warehouse mainly via Hive/Hadoop. Thus, we have an hourly load of data from Hive, as well as a larger daily load.

There are some updates on the data, but …

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common_schema 2.2: better QueryScript isolation & cleanup; TokuDB; table_rotate, split params

common_schema 2.2 is released. This is shortly after the 2.1 release; it was only meant as bug fixes release but some interesting things came up, leading to new functionality.

Highlights of the 2.2 release:

  • Better QueryScript isolation & cleanup: isolation improved across replication topology, cleanup done even on error
  • Added TokuDB related views
  • split with "index" hint (Ike, this is for you)
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