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Comment on How to Quickly Visualize/Analyze a MySQL Database? by residential architect

Good blog post. I definitely love this website. Keep writing!

MySQL Connect Conference: My Experience

It was a great experience to attend the MySQL Connect Conference for the first time ever. Personally I was very much enthralled to present about "How to make MySQL Backups" besides attending different sessions to absorb more knowledge about the technical prospects of MySQL. One of the agenda items in my presentation was "MySQL Enterprise Backup" functionality and features. There were total of 40 attendees in the session, who were very much interested about the MySQL Enterprise Backup product and gave positive feedback as well as areas of improvements on our product. Some of our features brought lot of excitement and smile amongst our customers including,

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Galera gotchas

We’ve recently implemented Galera clustering and have been pleased with the relatively easy install and implementation. A quick description of galera is the joining of individual mysql dbs as nodes to create a cluster that features multi-threaded synchronous replication, which allows for true high availability while still using your original db and engine (innodb). Likewise, [...]

Act NOW to maximise the chance of your bugs being fixed before 5.6 is declared production ready!

As an RC release, MySQL 5.6 has gone through extensive QA. But what matters most is whether 5.6 works for your environment and application needs - and now's the ideal time to test that, and provide us with any feedback on what needs fixing as we approach GA.

Entity Framework 4.3.1 Code based Migrations and Connector/Net 6.6

 Code-based migrations is a new feature as part of the Connector/Net support for Entity Framework 4.3.1. In this tutorial we'll see how we can use it so we can keep track of the changes done to our database creating a new application using the code first approach.

Upgrading to Code Based Migrations EF 4.3.1 with Connector/Net 6.6

This walk through is based on the approach of code first and it assumes you have a basic understanding of code first Entity Framework, so please make sure to check this subject before going further with Entity Framework Code Based Migrations. The purpose of this post is to show you how you can upgrade your existing database and use the Code First Migrations to keep track of the changes done in your model and replicate them to your database.

MySQL-5.6, GTID and binlogs on slaves

Not much to add really to the bug I’ve filed here: bug#67099.

I personally can think of some very nasty consequences of applying this on the slaves I manage, and the reason I’m posting the bug is that while I guess this is too late to fix in 5.6 as it’s effectively a new feature, I’m sure many sites may bump into this and be somewhat disappointed if they want to use the new GTID feature and have several slaves.  Hence, if the fix/feature has to go into MySQL 5.7 then I hope it goes in sooner rather than later. We will see.

Updated: 2013-09-19

I probably should have updated this earlier but it does seem that Oracle have taken these comments on board. See: WL6559.  It looks like they plan to do this for 5.7 which is good news. I’m really hoping …

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Making it easier to follow and participate in MariaDB development

In June, I told about the consolidation of the MariaDB project tools. The final piece of this consolidation, to report bugs in the MariaDB project tracking tool called JIRA has now been finalized.

Bug reporting stays open! JIRA is open to anyone. The bug reports are publicly available, even without logging in and as a bonus it will be easier to follow what is going on in the project since you don’t have to jump between several tools to get the complete picture.

All bugs that existed in Launchpad have been migrated to JIRA. To find a bug that was originally reported on Launchpad use the following approaches:

  • If you happen to have the original bug id you can search for the bug by typing lp:bugid into the search field in the upper right corner of JIRA. Also, if you have the …
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New MySQL Cluster 7.3 Previews: Foreign Keys, NoSQL Node.js API and Auto-Tuned Clusters

At this weeks MySQL Connect conference, Oracle previewed an exciting new wave of developments for MySQL 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 October at 0900 Pacific Time / …

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Optimistic non-locking copy of InnoDB .frm files


MySQL Enterprise Backup(MEB) does hot backup of innodb data and log files. Till MEB 3.6.1, the user backs up the only innodb tables in a 3 step process:

STEP 1. Take backup using --only-innodb option

STEP 2. Temporarily make the table read only by executing “FLUSH TABLES WITH READ LOCK”

STEP 3. Manually copy the .frm files of innodb tables to the destination directory where backup is stored.

 


MEB 3.7.0 has an enhancement to innodb file copying. The .frm files gets copied along with the hot backup done for innodb files. I would like to make the blog a little interactive by explaining the feature as answers:


1. What are these .frm files?


The files containing the metadata, such as the table definition, of a MySQL table.

For backups, the full set of .frm files are always required …

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