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Displaying posts with tag: MySQL Cluster (reset)

MySQL Cluster Tutorial: NoSQL JavaScript Connector for Node.js
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This tutorial has been authored by Craig Russell and JD Duncan

The MySQL Cluster team are working on a new NoSQL JavaScript connector for MySQL. The objectives are simplicity and high performance for JavaScript users:

- allows end-to-end JavaScript development, from the browser to the server and now to the world's most popular open source database

- native "NoSQL" access to the storage layer without going first through SQL transformations and parsing.

Node.js is a complete web platform built around JavaScript designed to deliver millions of client connections on commodity hardware. With the MySQL NoSQL Connector for JavaScript, Node.js users can easily add data access and persistence to their web, cloud, social and

  [Read more...]
MySQL Cluster 7.2.12 Released
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The binary version for MySQL Cluster 7.2.12 has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) and should soon be available at https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.12 (compared to 7.2.10) is available from the 7.2.12 Change log.

MySQL Community Dinner at Pedro’s 2013
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Once again, Pythian is organizing an event that by now may be considered a tradition: the MySQL community dinner at Pedro’s! This dinner is open to all MySQL community members as many of you will be in town for the MySQL Conference that week.

Here are the details:

What: The MySQL community pay-your-own-way dinner
When: Tuesday April, 23 – Meet us at 6:30 pm in the lobby of the Hyatt Santa Clara, or at 7 pm at Pedro’s (You are welcome to show up later too!)
Where: Pedro’s Restaurant and Cantina – 3935 Freedom Circle, Santa Clara, CA 95054
How: Comment on this blog post to add your name to the list of probable attendees

Pedro’s can handle large groups of people, but we would like to have an idea of




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MySQL Presentations from FOSDEM 2013
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FOSDEM 2013

The Free and Open source Software Developers’ European Meeting (FOSDEM) is a two-day event organized by volunteers to promote the widespread use of Free and Open Source software.

I attended for the first time over the weekend and was really impressed by the number of people there, the energy and the quality of the content. The event really lives up to it’s name and is very developer-focused.

In the end, I got the opportunity to make 2 presentations. The first is a general introduction to MySQL Cluster….



The second illustrates how you can realise the benefits promised by NoSQL data stores wihtout losing the consistency and flexibility of relational databases…



“MySQL & Friends devroom” at FOSDEM 2013
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FOSDEM 2013

The Free and Open source Software Developers’ European Meeting (FOSDEM) is a two-day event organized by volunteers to promote the widespread use of Free and Open Source software. As in previous years, there is a dedicated stream of MySQL Sessions. On Saturday (2nd Feb) evening there’s a MySQL community dinner and then we’ve a packed program from 9:15 through 17:30 on Sunday (3rd Feb).

FOSDEM 2013 is a free event and there’s no requirement to pre-register – just get

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MySQL Cluster Manager 1.2.2 released
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MySQL Cluster Manager 1.2.2 is now available to download from E-delivery and from My Oracle Support .

Details on the changes can be found in the MySQL Cluster Manager documentation . Please give it a try and let me know what you think.

Documentation is available here.

Database Virtualization, What it Really Means
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This is a response to a blog postby analyst and marketing consultant Curt Monash.
Originally virtualization meant running one operating system in a window inside of another operating system, e.g. running a Linux on a Windows machine using Microsoft Virtual PC or VMWare. Then virtualization evolved to mean slicing a single server into many for more granular resource allocation (Curt’s ex uno plures, translated: out of one, many). It has since expanded to include e pluribus unum (from many, one) and e pluribus ad pluribus (from many to many). This is evidenced in the use of the term “virtualization” to create the compound words: server virtualization, storage virtualization, network virtualization and now database virtualization.
Server


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Database Virtualization, What it Really Means
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This is a response to a blog postby analyst and marketing consultant Curt Monash. Originally virtualization meant running one operating system in a window inside of another operating system, e.g. running a Linux on a Windows machine using Microsoft Virtual PC or VMWare. Then virtualization evolved to mean slicing a single server into many for more granular resource allocation (Curt’s ex uno plures, translated: out of one, many). It has since expanded to include e pluribus unum (from many, one) and e pluribus ad pluribus (from many to many). This is evidenced in the use of the term “virtualization” to create the compound words: server virtualization, storage

  [Read more...]
MySQL Cluster 7.2.10 Released
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The binary version for MySQL Cluster 7.2.10 has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.10 (compared to 7.2.9) is available from the 7.2.10 Change log.

2012, the Best Year for MySQL (...so far, but more to come)
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It's the end of the year and, before the world ends ;-) , I feel the pressure to follow up on last year's article "2011, a great year for MySQL in Review". I'll adopt a similar format and mention things in context, covering products, marketing, momentum, etc. at a high level. I may have missed something and I hope my colleagues will contribute to the list.

I really do think it's been the best year for MySQL so far... well, at least since when I signed my contract with MySQL AB at the end of 2007. We're just at the beginning of our journey and I wish to the MySQL family, to our community and ecosystem an even better 2013!

Summary





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MySQL Cluster Manager 1.2 – using the new features
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Oracle have just announced that MySQL Cluster Manager 1.2 is Generally Available. For anyone not familiar with MySQL Cluster Manager – it’s a command-line management tool that makes it simpler and safer to manage your MySQL Cluster deployment – use it to create, configure, start, stop, upgrade…. your cluster.

So what has changed since MCM 1.1 was released?

The first thing is that a lot of work has happened under the covers and it’s now faster, more robust and

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MySQL Cluster 7.2.9 Released
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The binary version for MySQL Cluster 7.2.9 has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.9 (compared to 7.2.8) is available from the 7.2.9 Change log.

MySQL Cluster 7.3: On-Demand Webinar and Q&A Available
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The on-demand webinar for the MySQL Cluster 7.3 Development Release is now available.

You can learn more about the design, implementation and getting started with all of the new MySQL Cluster 7.3 features from the comfort and convenience of your own device, including:

- Foreign Key constraints in MySQL Cluster

- Node.js NoSQL API 

- Auto-installation of higher performance distributed, clusters

We received some great questions over the course of the webinar, and I wanted to share

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WebEx Today! MySQL Cluster 7.3 Development Release: What’s New
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Thursday, October 25, 2012
MySQL Cluster 7.3 Development Release: What’s New

Join the webinar to get all of the detail on MySQL Cluster 7.3 DMR and Early Access releases. Announced at the recent MySQL Connect conference, Oracle has published previews of MySQL Cluster 7.3.

MySQL Cluster 7.3 delivers more power and flexibility than ever before. The webinar will demonstrate each of these new features and show you how to get started.

WHO:
Andrew Morgan, MySQL Product Management
Mat Keep, MySQL Product Management

WHAT:
MySQL Cluster 7.3 Development Release: What’s New web presentation.

WHEN:
Thursday, October 25, 2012: 09:00 Pacific time (America)

Thu, Oct 25: 06:00 Hawaii time
Thu, Oct 25: 10:00 Mountain time (America)
Thu, Oct 25: 11:00






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MySQL Cluster 7.3 - Join This Week's Webinar to Learn What's New
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The first Development Milestone and Early Access releases of MySQL Cluster 7.3 were announced just several weeks ago. To provide more detail and demonstrate the new features, Andrew Morgan and I will be hosting a live webinar (http://www.mysql.com/news-and-events/web-seminars/display-726.html) this coming Thursday 25th October at 0900 Pacific Time / 16.00 UTC

Even if you can't make the live webinar, it is still worth registering for the event (http://www.mysql.com/news-and-events/web-seminars/display-726.html) as you will receive a notification when the replay will be available, to view on-demand at your convenience

In the webinar, we will discuss the enhancements being previewed as part of MySQL Cluster 7.3, including:

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New MySQL Cluster 7.3 Previews: Foreign Keys, NoSQL Node.js API and Auto-Tuned Clusters
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At this weeks MySQL Connect conference, Oracle previewed an exciting new wave of developments for MySQL Cluster (http://www.mysql.com/products/cluster/), further extending its simplicity and flexibility by expanding the range of use-cases, adding new NoSQL options, and automating configuration.

What’s new:

  • Development Release 1: MySQL Cluster 7.3 with Foreign Keys
  • Early Access “Labs” Preview: MySQL Cluster NoSQL API for Node.js
  • Early Access “Labs” Preview: MySQL Cluster GUI-Based Auto-Installer

In this blog, I'll introduce you to the features being previewed.

Review the blogs listed below for more detail on each of the specific features discussed.

Save the date!: A live webinar is scheduled for Thursday 25th

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MySQL Oracle Connect 2012: Day Two
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Another good day today: I attended the keynotes and found them quite interesting.

I especially liked the way Twitter uses MySQL to build up a NoSQL solution. Jokes aside, I took a few notes on things I must analyze and dig in.

The introduction of the Paypal models seemed very interesting, which brought me to attend the presentation later on. It was well constructed and had some good theoretical work, but I was quite disappointed. I found the presentation incomplete and missing real numbers for the MySQL Cluster NDB setup.

I attended the presentation done by Ronald B. It was good — nothing really advanced, but it was on purpose. He was very informative and explanatory for a junior MySQL DBA, and I enjoyed his presentation for the logical approach and construction.

Ronald also highlighted that it was the content of less then a chapter of one of his books and was done on purpose to

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MySQL Oracle Connect 2012: Day One
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I attend five sessions today, and I think that some of them were very interesting, like the one on the Optimizer insight. It was quite informative and accurate.

Another one, done by the MySQL Cluster (NDB) group on the installer and new Javascript API interface, left me a little bit…foggy. Why? Because in my mind, one of the most important things to accomplish in NDB is the correct dimensioning of the memory, buffers, possible operation, attributes, and so on. All these things should come from the schema definition review and from the application analysis.

Now given the review analysis of the schema is still not present in the installer, I think that we missed a very important piece of information. When I raised the issue, Bernd mentioned that they were thinking of integrating that as well. It’s a good move, and I hope to see it soon. About the

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MySQL Oracle Connect 2012 Keynotes
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I’m excited to be here not only to catch up with old friends and ex-colleagues, but also to witness what seems to be the start of a very significant conference from MySQL.

I really enjoyed the introductions done by Edward Screven and Thomas Ulin. Edward highlighted the fact that MySQL is increasing its presence in the market and in the community. This could be thanks to the unbelievable effort done by Oracle in keeping its production cycle on target. Thomas stressed that point and gave a great description of it. He demonstrated Oracle’s main focus points, which are mainly on InnoDB, with implementation and enhancement of the internal contentions, then on Optimizer improvements and NoSQL integration.

Replication remains a pending issue from my side because if we have the global transaction ID, we still suffer from delay in replication given that parallel

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MySQL now provides support for DRBD
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Oracle has announced that it now provides support for DRBD with MySQL – this means a single point of support for the entire MySQL/DRBD/Pacemaker/Corosync/Linux stack! As part of this, we’ve released a new white paper which steps you through everything you need to do to configure this High Availability stack (http://www.mysql.com/why-mysql/white-papers/mysql_wp_drbd.php). The white paper provides a step-by-step guide to installing, configuring, provisioning and testing the complete MySQL and DRBD stack, including:

  • MySQL Database
  • DRBD kernel module and userland utilities
  • Pacemaker and Corosync cluster messaging and management processes
  • Oracle Linux operating system

DRBD is an extremely popular way of adding a layer of High

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MySQL Cluster Auto-Installer – labs release
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Deploying a well configured cluster has just got a lot easier! Oracle have released a new auto-installer/configurator for MySQL Cluster that makes the processes extremely simple while making sure that the cluster is well configured for your application. The installer is part of MySQL Cluster 7.3 and so is not yet GA but it can also be used on MySQL Cluster 7.2. A single command launches the web-based wizard which then steps you through configuring the cluster; to keep things even simpler, it will automatically detect the resources on your target machines and use these results together with the type of workload you specify in order to determine values for the key configuration parameters.

Tutorial Video

Before going through the detailed steps, here’s a demonstration of the

  [Read more...]
Tutorial: Getting Started with the NoSQL JavaScript / Node.js API for MySQL Cluster
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Tutorial authored by Craig Russell and JD Duncan 

The MySQL Cluster team are working on a new NoSQL JavaScript connector for MySQL. The objectives are simplicity and high performance for JavaScript users:

- allows end-to-end JavaScript development, from the browser to the server and now to the world's most popular open source database

- native "NoSQL" access to the storage layer without going first through SQL transformations and parsing.

Node.js is a complete web platform built around JavaScript designed to deliver millions of client connections on commodity hardware. With the MySQL NoSQL Connector for JavaScript, Node.js users can easily add data access and persistence to their web, cloud, social and mobile applications.

While the initial implementation is designed to plug and play with Node.js, the actual

  [Read more...]
MySQL Connect: What to Expect From the Wondrous Land of MySQL Cluster
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The MySQL Connect conference is only a couple of weeks away, with MySQL engineers, support teams, consultants and community aces busy putting the final touches to their talks.

There will be many exciting new announcements and sharing of best practices at the conference, covering the range of MySQL technologies.

MySQL Cluster (http://www.mysql.com/products/cluster/) will a big part of this, so I wanted to share some key sessions for those of you who plan on attending, as well as some resources for those who are not lucky enough to be able to make the trip, but who can't afford to miss the key news. Of course, this is no substitute to actually being there….and the good news is that

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More GlassFish loadbalancing tips for Connector/J
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Almost two weeks ago, I encouraged GlassFish users who need load-balanced JDBC connections to MySQL Cluster (or master-master replicated MySQL Server) to set the loadBalanceValidateConnectionOnSwapServer property to true in order to help ensure the connection chosen at re-balance is still usable.  That advice triggered finding a bug (14563127) which will cause the following Exception message:

No operations allowed after connection closed. Connection closed after inability to pick valid new connection during fail-over.

If you implemented the loadBalanceValidateConnectionOnSwapServer property and are seeing the above error message, updating your driver to the

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MySQL Cluster to InnoDB Replication Howto
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In this blog post I will show you how to setup a replication from MySQL Cluster  (ndbcluster) to a regular MySQL Server (InnoDB). If you want to understand the concepts, check out part 7 of our free MySQL Cluster training.

First of all we start with a MySQL Cluster looking like this, and what we want to do is to setup replication server to the Reporting Server (InnoDB slave).



0 0 1 125 713 Severalnines AB 5 1 837 14.0 Normal 0 false false false EN-US JA X-NONE






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MySQL Cluster 7.2.8 Released
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The binary version for MySQL Cluster 7.2.8 has now been made available at http://www.mysql.com/downloads/cluster/ (http://www.mysql.com/downloads/cluster/" target="_blank) (GPL version) or https://support.oracle.com/ (commercial version).

A description of all of the changes (fixes) that have gone into MySQL Cluster 7.2.8 (compared to 7.2.7) is available from the 7.2.8 Change log.

Monty’s team announces the availability of MariaDB Galera Cluster!
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We’re delighted to share the news that our friends at MariaDB today announced the availability of MariaDB Galera Cluster!

We’ve been talking a good bit about MariaDB in the past few months and it’s great to see the MariaDB & Codership partnership result in today’s announcement.

read more

Learn From MySQL Support Staff at MySQL Connect!
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Members of the MySQL Support Team wear a number of different hats here at Oracle.  Obviously, our top priority is to provide amazing technical support that makes customers rave (http://www.mysql.com/support/quotes.html" target="_blank).  We also have a team dedicated to processing bug reports from the MySQL Community.  Some of us are active bloggers or assist on mailing lists or forums, while others find other ways to contribute to the MySQL Community.  We help out with QA and product planning, write

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Load-balanced JDBC Tip for GlassFish Deployments
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Having supported a number of successful load-balanced JDBC applications using MySQL Cluster and MySQL Connector/J over the years, I’ve found a few problems that are unique to specific Java app servers.  A recent customer inquiry reminded me of a GlassFish-specific issue, and the Connector/J connection property we introduced to help solve it.  I thought it might be useful to document this here for any GlassFish users looking to deploy a load-balanced JDBC application with MySQL (Cluster or multi-master replication).

If you’re entirely new to the load-balancing functionality in MySQL Connector/J, you may want to review some earlier

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MySQL Cluster: Troubleshooting Error 157 / 4009 Cluster Failure
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0 0 1 519 2962 Severalnines AB 24 6 3475 14.0 Normal 0 false false false false EN-US JA X-NONE
Suddenly your application starts throwing "error 157" and performance degrades or is non-existing. It is easy to panic then and try all sorts of actions to get past the problem. We have seen several users doing:
  • rolling restart
  • stop cluster / start cluster
because they also see this in the error logs:120828 13:15:11 [Warning] NDB: Could not acquire global schema
  [Read more...]
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