People claim that MongoDB is not transactional. It actually is, and that’s a good thing.

In MongoDB 2.2, individual operations are Atomic. By having per database locks control reads and writes to collections, write operations on collections are Consistent and Isolated. With journaling on, operations may be made Durable. Put these properties together, and you have basic ACID properties for transactions.

The shortcoming with MongoDB’s implementation is that these semantics apply to individual write operations, such as an individual insert or individual update. If a MongoDB statement updates 10 rows, and something goes wrong with the fifth row, then the statement will finish execution with four rows updated and six …

Welcome to my blog. I am Anitha and  is currently leading the testing team for MySQL Server in Oracle. This is a great place to be and I love every moment of my work on this great product with a bright  group of colleagues. In this blog I plan to write about testing in MySQL , testing in general and some other topics that are of interest to me.

MySQL for Database Administrators is the foundation of the authentic MySQL Curriculum. By taking this live 5-day instructor-led course, you find out how MySQL enhancements increase performance, scalability, reliability and manageability of your Web, Cloud and embedded application requirements.

You will learn to:

• Setup the server and databases
• Maintain and secure data
• Configure for performance and high availability
• Explore real-world problems and discover best practices

You can take this course as a:

• Live Virtual Event: Take this course from your own desk choosing from 15 events already on the schedule, delivered in English or Germany.
…

I’ve just completed my first month here at Continuent, strangely back into the MySQL ecosystem which I have been working in for some time before I joined CouchOne, and then Couchbase, two and half years ago. Making the move back to MySQL is both an experience, and somehow, comfortable…

Continuent produce technology that makes for easier replication between MySQL servers and, more importantly, more flexible solutions when you need to scale out by providing connector and management functionality for your MySQL cluster. That means that you can easily backup, add slaves, and create complex replication scenarios such as multi-master, and even multiple-site, multiple-master topologies. This functionality is split over two products, Continuent Tungsten, which is the cluster management product, and the open source Tungsten Replicator, which provides the basic replication functionality.

Those who know me well will know that I am no fan …

FromDual is looking for professional, enthusiastic and experienced people who:

• Know MySQL, Percona Server or MariaDB extensively
• Are Familiar with the open source eco-system
• Know how to operate database systems, as a DBA or a DevOps
• Understand what can go wrong in operating a database
• Are happy to work autonomously, remotely and to communicate with IRC, Skype, Mail and Phone
• Are comfortable on Linux systems
• Are team players, keen to contribute to the growth of the company
• Are Comfortable dealing direct with clients and
• Look for new challenges

Job description

We are looking for full-time …

One of the main responsibilities of any database administrator is to keep a close eye on how database performance is impacting size and storage. Decisions will have to be made on whether or not to make changes within the database structure or application itself, or to make the changes on the storage and resource side [...] Read More

Space is limited so RSVP Today!

Join Oracle’s MySQL Team on April 22, 2013, as we celebrate the general availability of MySQL 5.6. With product demos and fun activities in a relaxing atmosphere, this is the party for the MySQL community to get together and have a toast on the work all of us did to make MySQL 5.6 the best release ever. Whether you are an attendee at Percona Live, a member of local MySQL user groups, a MySQL user in the Bay Area, or simply interested in MySQL technology, you’re all invited to Oracle’s MySQL Community Reception.

Mingle with your peers and learn from real-world experiences.

Meet MySQL engineers and get the first-hand information on the latest product development.
Have lots of fun!

RSVP today and get ready for an evening of casual but informative conversation, with …

Do not forget the Call for Papers for MySQL Connect ends in less than two weeks!

The Call for Papers is now open, and will be running until April 12. We highly encourage MySQL users, customers, partners and community members to submit session proposals now.

MySQL Connect represents a unique opportunity to learn about the latest features of the best MySQL product releases ever, discuss product roadmaps, and connect directly with the engineers driving MySQL innovation.

The Conference is chock-full with technical sessions, hands-on labs, Birds of a Feather (BOF) sessions and tutorials delivered by MySQL community members, users, customers, partners and Oracle’s MySQL engineers.

The event will include five tracks: Performance and Scalability, High Availability & Replication, Cloud & Big Data, Database Administration & DevOps, Architecture and Application Development.

This is your chance to share …

I use Percona Toolkit a lot. We all know about the most popular tools: pt-heartbeat, pt-kill, pt-online-schema-change, pt-query-digest, pt-stalk, pt-table-checksum, etc. They can help a lot working with MySQL.

But there are also some lesser known tools that don't have anything to do with MySQL.

Here are a few of my favorites:

pt-price

Percona acknowledges that "PT" doesn't only stand for "Percona Toolkit", it is also the chemical symbol for Platinum, so they recently added this handy little tool to give you the current spot price for Platinum. The price of Platinum is changing all the time, and it's hard to keep up with it. Also, currency exchange rates are constantly fluctuating, so figuring out the value of platinum in various currencies is almost impossible. That's …

I use Percona Toolkit a lot. We all know about the most popular tools: pt-heartbeat, pt-kill, pt-online-schema-change, pt-query-digest, pt-stalk, pt-table-checksum, etc. They can help a lot working with MySQL.

But there are also some lesser known tools that don't have anything to do with MySQL.

Here are a few of my favorites:

pt-price

Percona acknowledges that "PT" doesn't only stand for "Percona Toolkit", it is also the chemical symbol for Platinum, so they recently added this handy little tool to give you the current spot price for Platinum. The price of Platinum is changing all the time, and it's hard to keep up with it. Also, currency exchange rates are constantly fluctuating, so figuring out the value of platinum in various currencies is almost impossible. That's …