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Showing entries 1 to 30 of 265 Next 30 Older Entries

Displaying posts with tag: Percona (reset)

An Updated Description of Clustering Keys for TokuDB
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Covering indexes can result in orders of magnitude performance improvements for queries. Bradley’s presentation on covering indexes describes what a covering index is, how it can effect performance, and why it works. However, the definition of a covering index can get cumbersome since MySQL limits the number of columns in a key to 16 (32 on MariaDB).

Tokutek introduced multiple clustering indexes into MySQL to address these problems. Zardosht describes the multiple clustering indexes feature and how clustering indexes differ from covering indexes. Zardosht

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We’d love to go to Paris for the OpenStack Summit - please vote for our talks!
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August 6, 2014 By Severalnines

 

Well over a thousand sessions have been submitted for the OpenStack Summit and two of them includes our good selves! We’ve submitted two talks with partners of ours: 

 

… and would love it if the talks were included in the final agenda. For that to happen, we need a few

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ClusterControl Module for Puppet
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July 7, 2014 By Severalnines

If you are automating your infrastructure using Puppet, then this blog is for you. We are glad to announce the availability of a Puppet module for ClusterControl. For those using Chef, we already published Chef cookbooks for Galera Cluster and ClusterControl some time back.  

 

 

ClusterControl on Puppet Forge

 

The ClusterControl module initial release is available on Puppet Forge, installing the

  [Read more...]
Awesome MySQL 5.7 improvements
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Recently, I’ve had reason to poke at MySQL performance on some pretty cool hardware. Comparing MySQL 5.6 to MySQL 5.7 is a pretty interesting thing to do when you have many CPU cores.

The improvements to creating read views in InnoDB is absolutely huge for small statements with large concurrency – MySQL 5.7 completely removes this as a bottleneck – as much as doubling maximum SQL queries per second, which is a pretty impressive improvement.

I haven’t poked at the similar improvements in Percona Server on this hardware setup – so I can only really guess as to the performance characteristics of it… If comparing to older MySQL versions, Percona Server 5.5 is likely to outperform MySQL 5.5 thanks to

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How to Deploy Percona XtraDB Cluster without Internet Connection
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May 23, 2014 By Severalnines

If you need to deploy a database cluster behind your corporate firewall, on servers with no internet access, then this blog is for you. Most of the installation tutorials out there require servers to have an internet connection, and that would not work very well with companies under strict policies and compliance guidelines. 


Our online Galera Configurator supports deployment without Internet connection for Percona XtraDB Cluster. You would need to prepare a minimum of four hosts (three DB nodes and one management node), generate a Deployment

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Slides from PLMCE 2014 breakout session
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As many of you already know, PLMCE is an annual MySQL
community conference and Expo organized by Percona in the month of April
(usually). It is a great conference, not only to meet new and eminent people in
MySQL and related database fields, but also to attend interesting talks, and
also to give some.

This year I spoke about synchronous replication at a higher level. The talk was
titled “ACIDic Clusters: Review of current relational databases with synchronous replication”. Having previously given talks with boring titles (but





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MySQL related IRC discussion channels
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There are many MySQL related IRC discussion channels as the ecosystem itself grows. I join the following. Are there any that I’m missing?

Freenode (irc.freenode.net):

  • #mysql – main channel for all kinds of end user MySQL related discussions (the noisiest of the lot, naturally)
  • #maria – main channel for all kinds of MariaDB related discussions
  • #webscalesql – for all kinds of WebScaleSQL discussions
  • #percona – main channel for all kinds of Percona related discussions
  • #tokutek – main channel for Tokutek discussions (TokuDB or TokuMX)
  • SkySQL-specific channels: #maxscale and #mariadb-mgr

OFTC (irc.oftc.net):

  • #debian-mysql – for all kinds of Debian MySQL related bits (packaging, bugs, etc.)
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How to Setup Centralized Authentication of ClusterControl Users with LDAP
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April 24, 2014 By Severalnines

ClusterControl 1.2.6 introduces integration with Active Directory and LDAP authentication. This allows users to log into ClusterControl by using their corporate credentials instead of a separate password. LDAP groups can be mapped onto ClusterControl user groups to apply roles to the entire group, so it is very convenient for larger organizations who have a centralized LDAP-compliant authentication system. This blog shows you how to configure LDAP authentication in ClusterControl, and allow users to use their Active Directory or LDAP username and password to log in to ClusterControl. 

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ClusterControl 1.2.6 Released
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April 22, 2014 By Severalnines

 

Join our upcoming webinar New Features Webinar on ClusterControl 1.2.6 - May 13th 2014 with live demo. Click on following banner to register:

 

The Severalnines team is pleased to announce the release of ClusterControl 1.2.6. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. 

 

Highlights of ClusterControl 1.2.6 include:

  • Centralized Authentication
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If you use MySQL in the Amazon cloud, you need to ask yourself this question
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Join 25,000 others and follow Sean Hull on twitter @hullsean. Are you serious about backups? If you’re just using Amazon EBS snapshots, that may not be sufficient. There’s a good chance it won’t protect you against your next data loss. That’s why I like to have a few different types of backups Also: 5 more […]
Heartbleed OpenSSL Bug: Impact on ClusterControl Users & Recommendations on How to Protect your Systems
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April 10, 2014 By Severalnines

 

In the wake of recent concerns and debates raised around the Heartbleed bug, we wanted to update Severalnines ClusterControl users on any impact this bug might have on ClusterControl & associated databases and/or applications.

 

Background

 

If your ClusterControl's web application has been accessible on the internet, then most likely you have also been exposed to the Heartbleed OpenSSL security bug, see: http://heartbleed.com for more details. 

By default, our database deployment script enables SSL encryption for the

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Reflections on return to MySQL Community and Ecosystem
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After a four year hiatus, my participation in last week’s Percona Live MySQL Users conference marked my official return to the MySQL Community and Ecosystem. As with earlier renditions this year’s “UC” was very well attended with a healthy mix of familiar faces and new blood, all coming together to discuss, present and explore the boundaries of the most popular and widely used open source database on the planet.  There were many good, informative keynote and technical sessions, BoFs and the exhibit hall was packed most of the operating hours with those interested in what the MySQL ecosystem is up to.  I also found it very refreshing that Oracle was among the most active in presenting useful technical content around their current and future MySQL open source product releases. All in  [Read more...]
Percona Live 2014 Recap
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The MySQL community continues to amaze me, everyone is friendly and always willing to answer questions and help others. It’s always nice to meet people in-person that I’ve met virtually in the last 12 months. Percona Live 2014 MySQL Conference and Expo in Santa Clara just wrapped up and I wanted to share my highlights of the event before I unplug for the weekend.

  • I heard several stories of people’s experiences with TokuDB, open sourcing 12 months ago has been a huge success for Tokutek. We have a growing community in our tokudb-user Google Group, please share your experiences and help others.
  • In his “Galera Cluster New Features” presentation, Sappo Jaakola of
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9 Reasons For Attending The Percona Live MySQL Conference & Expo 2014
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March 28, 2014 By Severalnines

 

Percona Live MySQL Conference & Expo - March 31st to April 4th

The Severalnines Team Will Be Onsite at Booth 418 - Come Say Hello!

 

 

If you’re still thinking about whether or not you should be attending the Percona Live MySQL Conference & Expo that starts on Monday 31st of March, here are 9 reasons (we are Severalnines after all) on why we’ll be there. May these help you positively in

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How to convert master-slave to master-master replication in MySQL
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Recently, I have worked on one of this case where customer wanted to convert master-slave to master-master replication. They wanted to write on one master and keep another master as a hotspare. Many people are using this kind of environment Continue reading →   [Read more...]
Don't miss these Tungsten talks at Percona Live MySQL Conference & Expo
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Keynotes and Sessions: Keynote: Getting Serious about MySQL and Hadoop at ContinuentRobert Hodges (CEO, Continuent) Hadoop for MySQL PeopleChris Schneider (Database Architect, Groupon.com) From Dolphins to Elephants: Real-Time MySQL to Hadoop ReplicationMC Brown (Director of Documentation, Continuent), Linas Virbalas (Senior Software Engineer, Continuent) Virtually Available MySQL, or How to
Webinar Replay & Slides: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster
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March 13, 2014 By Severalnines

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

 

Special thanks to Seppo Jaakola, CEO at Codership, the creators of Galera Cluster, and to Johan Andersson, CTO at Severalnines, for their presentations and the live demo.

 

Webinar topics discussed: 

  • Application use cases for Galera
  • Schema design
  • Events and Triggers
  • Query design
  • Migrating the schema
  • Loading initial data into the
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ClusterControl 1.2.5 Released
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March 5, 2014 By Severalnines

The Severalnines team is pleased to announce the release of ClusterControl 1.2.5. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. 

For additional details about the release:

  [Read more...]
MongoDB and Hadoop - Stockholm MongoDB User Group Meetup - Monday, March 3, 2014
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February 27, 2014 By Severalnines

 

Stockholm MongoDB User Group Meetup: “MongoDB and Hadoop”

Monday, March 3, 2014 starting @ 5:00 PM

 

Join us next Monday as we host the Stockholm MongoDB User Group Meetup in Kista, or the Wireless Valley as it is also referred to. 

 

Our very own Vinay Joosery will be speaking about how to best automate the management & deployment of database clusters, specifically MongoDB clusters though the same principles apply for MySQL, MariaDB and Percona XtraDB based clusters. Henrik Ingo of MongoDB will be talking about Analytics with MongoDB & Hadoop. And Jim Dowling, a Senior Researcher at the Swedish Institute of Computer Science, will talk

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An update on the MariaDB Audit Plugin and a new version of it
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I’m happy to announce that a new version of the MariaDB Audit Plugin is available. Version 1.1.5 can be downloaded here. As you can see the Audit Plugin is available from SkySQL, who has developed the plugin.

However, now with the Audit Plugin being GA for a couple of months since 7th of November last year and customers using it in production, SkySQL has decided to contribute the Audit Plugin to the MariaDB project and I’m happy to tell you that starting from MariaDB versions 5.5.37 and 10.0.9 the Audit Plugin will be included by default. Notice that these versions of MariaDB aren’t yet released.

The MariaDB Audit Plugin introduces the capabilities of tracking user access to data. By having the Audit Plugin available by default in MariaDB, all users can

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Webinar: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster
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February 13, 2014 By Severalnines

 

Galera is slowly but surely establishing itself as a credible replacement for traditional MySQL master-slave architectures. 

The benefits are clear - a true multi-master InnoDB setup with built-in fail-over, potentially across data centers. 

But how do you migrate? Does the schema or application change? What are the limitations? Can migration be done online, without service interruption? What are the potential risks, and how to address those?

 

Webinar: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster

 

Tuesday, March

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On the road again - FOSSAsia
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On the road again - FOSSAsia

It has been a few busy months until now. I have moved from Italy to Thailand, and the move has been my first priority, keeping me from attending FOSDEM and interacting with social media. Now I start catching my breath, and looking around for new events to attend. But before I get into this, let’s make a few things clear:

  • I am still working for Continuent. Actually, it’s because of my company flexibility that I could move to a different country (a different continent, 6 time zones away) without much trouble. Thanks, Continuent! (BTW: Continuent is hiring! )
  • I am still involved with MySQL activities, events, and community matters. I just happen to be in a different time zone, where direct talk with
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Introducing Trite: A tool for automating import of InnoDB tablespaces
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Mysqldump is a fantastic tool for backing up and restoring small and medium sized MySQL tables and databases quickly. However, when databases surge into the multi-terabyte range restoring from logical backups is inefficient. It can take a significant amount of time to insert a hundred million plus rows to a single table, even with very fast I/O. Programs like MySQL Enterprise Backup and Percona XtraBackup allow non-blocking binary copies of your InnoDB tables to be taken while it is online and processing requests. XtraBackup also has an export feature that allows InnoDB file per tablespaces to be detached from the shared table space and imported
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Announcing Partnership with Percona
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February 4, 2014 By Severalnines

Great news for Percona customers! We are thrilled to announce our partnership with Percona. Effective immediately, Percona customers will be able to enjoy the advanced automation, monitoring and cluster management capabilities of ClusterControl. Percona will be bundling, with its Cluster support contracts, Percona ClusterControl - a privately branded version of ClusterControl Community. Together we're providing support for the full stack, from Percona XtraDB Cluster to management tools, giving customers one number to call. 

For anyone who has deployed, managed or

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Enhancing pt-kill to Better Protect your Servers
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I believe in automation as much as possible, and I'm always working to make the day to day tasks of operations as smooth as possible.  Also I try not to be afraid to take good tools and make them better.

Here in Database Ops at Box, we use pt-kill running as a service to constantly monitor our servers and help protect against long running queries.  But our thresholds are pretty generous, and in some cases it's possible for unforeseen circumstances to cause enough queries to storm the database such that we can have problems before any of them hit the threshold for "busy time."  Ditto for idle connections.

The response is that someone has to be available to manually run another copy of pt-kill with much lower thresholds to clear out these thundering herds.  But what if we could let pt-kill handle both the "normal" mode and still protect



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and now for something completely different…
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As many of you know, I’ve been working in the MySQL (http://www.mysql.com) world for quite a while now. IN fact, it was nearly 10 years ago when I first started hacking on MySQL Cluster (https://www.mysql.com/products/cluster/) at MySQL AB.

Most recently, I was at Percona which was a wonderful journey where over my nearly three years there the company at least doubled in size, launched several new software products and greatly improved the quality and frequency of releases.

However the time has come for something

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Percona server 5.5/5.6 installation failed on Ubuntu 13.04/13.10(amd64)
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While installing Percona Server 5.5/5.6 on Ubuntu 13.04/13.10, I got some weird errors, which I never faced before. Errors were something like, dpkg: error processing /var/cache/apt/archives/libmysqlclient18_1%3a5.5.35-rel33.0-611.raring_amd64.deb (–unpack):   libmysqlclient18:amd64 1:5.5.35-rel33.0-611.raring (Multi-Arch: no) is not co-installable with libmysqlclient18 which has multiple Continue reading →   [Read more...]
Connect to MySQL in the Amazon Public Cloud
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Troubleshooting MySQL on Amazon can be a real test of patience. There are quite a few different things to watch out for in terms of connectivity & networking. Sometimes a checklist can help. Join 16,000 others and follow Sean Hull on twitter @hullsean. Here’s my exhaustive list of things that can block you. 1. Be […]
PerconaLive 2014 program is published
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PerconaLive 2014 program is published

After a few months of submissions and reviews, the program for PerconaLive MySQL Conference and Expo 2014 is published. The conference will be held in Santa Clara, from April 1 to 4, 2014.

Registration with early bird discount is available until February 2nd. If you plan to attend, this is probably the best time to act.

I will be presenting twice at the conference:

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Converting MySQL trees to git
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I have put up a set of scripts on github: https://github.com/stewartsmith/bzr-to-git-conversion-scripts. Why do I need these? Well… if only bzr fast-export|git fast-import worked flawlessly for large, complex and old trees. It doesn’t.

Basically, when you clone this repo you can run “./sync-BLAH.sh” and it’ll pull BZR trees for the project, convert to git and clean things up a bit. You will likely have to edit the sync-BLAH.sh scripts as I have them pointed at branches on my own machine (to speed up the process, not having to do fresh BZR branches of MySQL trees over the network is a feature - it’s never been fast.). You’ll also want to edit the

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Showing entries 1 to 30 of 265 Next 30 Older Entries

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