Going to MySQL Connect was truly a blast. We got a lot of good questions and feedback in the sessions and there were a lot of interest in both MySQL Fabric and the MySQL Applier for Hadoop.

A big thank you to all that attended the talks, I got a lot of good questions and comments that will help us build good solutions.

The talks are available on SlideShare:

• MySQL Sharding: Tools and Best Practices for Horizontal Scaling 
• MySQL Applier for Apache Hadoop: Real-Time Event Streaming to HDFS
• Sharding PHP with MySQL …

Thanks to everyone who came. Definitely check out the recording below!

Heyo everybody!

Coming up this Wednesday, October 2nd, 2013 at 12:00pm pacific (19:00 GMT) is another exciting #DBHangOps. Join the google hangout to discuss:

• MySQL Utilities from Chuck Bell!
• How do you constrain over-consumption of resources by competing applications?
• Network vs. Local storage for MySQL
  • How do you use this for HA? Do you use DRBD or floating VIPs?
• Secure connections to MySQL (using SSL) (requested by Daniel)
  • Do you have experience with this? What’s the performance impact?
• PCI Certification with MySQL — what changed for you?
• MySQL-isms!
  • (From Gerry) Sub SELECTs — Why aren’t these as mature as other databases?
  …

As you saw on the keynote, we are introducing an integrated framework for managing farms of MySQL servers with support for both high-availability and sharding. It should be noted that this is a very early alpha and that it at this point is not ready for production use.

MySQL Fabric is an integrated system for managing a collection of MySQL servers and is the framework on which high-availability and sharding is built. MySQL Fabric is open-source and is intended to be extensible, easy to use, and support procedure execution even in the presence of failure, an execution model we call resilient execution.

To ensure high-availability, it is necessary to have redundancy in the system. For database systems, the redundancy traditionally takes the form of having a primary server acting as a master and using replication to keep secondaries available to take over in case the primary fails. This means that the "server" …

Applications should be written taking into account that errors will eventually happen and, in particular, database application developers usually consider this while writing their applications.

Although the concepts required to write such applications are commonly taught in database courses and to some extent are widely spread, building a reliable and fault-tolerant database application is still not an easy task and hides some pitfalls that we intend to highlight in this post with a set of suggestions or tips.

In what follows, we consider that the execution flow in a database application is characterized by two distinct phases: connection and business logic. In the connection phase, the application connects to a database, sets up the environment and passes the control to the business logic phases. In this phase, it gets inputs from a source, which may be an operator, another application or a component within the same …

In this post, we are going to show how to develop fault-tolerant applications using MySQL Fabric, or simply Fabric, which is an approach to building high availability sharding solutions for MySQL and that has recently become available for download as a labs release (http://labs.mysql.com/). We are going to focus on Fabric's high availability aspects but to find out more on sharding readers may check out the following blog post:

•  http://vnwrites.blogspot.com/2013/09/mysqlfabric-sharding-introduction.html

Servers managed by Fabric are registered in a MySQL Server instance, called backing store, and are …

And that’s a wrap! Check out the recording:

Hello!

Coming up this Wednesday, September 18th, 2013 at 12:00pm pacific (19:00 GMT) come and join #DBHangOps to discuss:

• Data warehousing in MySQL
  • Shipping large tables from production to your Data warehouse
  • Do you use Federated engine?
  • What other solutions do you use?
• Answer some questions about MySQL-isms (requested by Tim Callaghan)
  • Why does MySQL have FRM files instead of storing them in a data dictionary table?
  • Why doesn’t InnoDB support other page sizes?
  • Why do we store data in a master.info file?
• What are you excited to see at MySQLConnect?

As always, take …

Check out the video!
Hey there everybody!

Coming up this Wednesday, September 4th, 2013 at 12:00pm pacific (19:00 GMT) take part in #DBHangOps to discuss:

• Data Dictionary Corruption
  • What is it?
  • How does it happen?
  • How did you fix it?
  • What about FRM file corruption?
• MySQL Utilities (requested by Sheeri Cabral!)
  • mysqlfrm — http://dev.mysql.com/doc/workbench/en/mysqlfrm.html
    • Read about it at Chuck Bell’s blog http://drcharlesbell.blogspot.com/2013/04/mysql-utilities-new-frm-reader-utility.html
    …

The MySQL Utilities Team is pleased to announce the latest GA release of
MySQL Utilities. This release marks a milestone of concentrated effort to
expand the use of utilities in more diverse installations through improved
robustness, error handling, and quality.

Many Improvements
There are number such enhancements in this release. In this post we will
highlight a few of the more significant improvements.

• (new utility) MySQL .frm Reader (mysqlfrm) - read .frm files and generate CREATE statements with or without a server connection.
• (revised) improved documentation including a section on example administrative tasks - see http://dev.mysql.com/doc/workbench/en/mysql-utilities.html
• MySQL Utilities is packaged for .msi, .rpl, .deb platforms and source .tar/.zip
…

In my recent SQL work for a large Swiss bank, I have maintained nested database view monsters whose unnested SQL code amounted up to 5k lines of code, joining the same table over and over again in separate subselects combined via UNION operations. This monster performed in way under 50ms, no matter how we queried … Continue reading The Myth About Slow SQL JOIN Operations →

Hey all!

Coming up this Wednesday, August 21st, 2013 at 12:00pm pacific (19:00 GMT) join in to talk about:

• Gerry from Tokutek to talk about B-Tree indexes in InnoDB and fractal indexes TokuDB!
• Schema Versioning
  • How do you manage schema versions in your development pipeline?
  • How are your schema changes deployed? Is it automated?
  • Some automated schema management tools:
    • South — http://south.aeracode.org/ — a DJango (python) friendly migration tool
    • Flyway — http://flywaydb.org/ — A database migration framework for java
    • Liquibase — …