MySQL 5.5.44 was recently released (it is the latest MySQL 5.5, is GA), and is available for download here:

http://dev.mysql.com/downloads/mysql/5.5.html

This release, similar to the last 5.5 release, is mostly uneventful.

There were 0 “Functionality Added or Changed” items this time, and just 15 overall bugs fixed.

Out of the 15 bugs, there were 5 InnoDB bugs (1 of which also spans partitioning), 1 security-related bug, 1 performance-related, and 3 additional potential crashing bugs. Here are the ones worth noting:

• InnoDB: An assertion was raised on shutdown due to XA PREPARE transactions holding explicit locks.
• InnoDB: Removal of a foreign key object from the data dictionary cache during error handling caused the server to exit.
• InnoDB: SHOW ENGINE …

VividCortex, the monitoring solution for the modern data system, now supports MongoDB in addition to MySQL, PostgreSQL and Redis.

Charlottesville, Virginia (PRWEB) June 01, 2015 – VividCortex, the monitoring solution for the modern data system, announces immediate availability of database monitoring for MongoDB. Earlier this year, VividCortex expanded its cloud-based tool from MySQL to PostgreSQL and Redis. This is another step toward providing the most robust monitoring solution for today’s diverse, distributed systems as data grows exponentially.

MongoDB is a rapidly growing NoSQL database that is developer-friendly and designed to scale. VividCortex applies …

MariaDB 10.1.4 was recently released, and is available for download here:

https://downloads.mariadb.org/mariadb/10.1.4/

This is the 2nd beta, and 5th overall, release of MariaDB 10.1. Now that it is beta, there were not as many major changes in this release (compared to 10.1.3), but there were a few notable items as well as many overall bugs fixed (I counted 367).

Since it’s beta, I’ll only cover the major changes and additions, and omit covering general bug fixes (feel free to browse them all here).

To me, these are the highlights:

• Encryption: Many, many changes related to Table and Tablespace Encryption that was implemented in …

I have released version 0.0.9 of Chef multipath cookbook. The cookbook now supports Pure Storage SAN among a bunch of other improvements.

Below is the list of changes and improvements in version 0.0.9 of Chef multipath cookbook:

• Added support for Pure Storage SAN
• Added test-kitchen tests
• Reimplemented the chefspec tests
• Fixed the issues reported by foodcritic

The cookbook is now tested to work with Chef 12.

To configure multipath for Pure Storage LUNs, all you need to do is set the following attribute:
node["multipath"]["storage_type"] = "purestorage"

Feel free to contribute in the form of pull requests and bug reports. The repository is available at …

Podcasts Learning

In this episode we discuss our timeless podcasts. For those who are new and listening for the first time - welcome! This podcast is a great jumping off point to learn about specific topics we've covered. If you have been with us for some or all of the time, thank you for being with us, and we hope this trip down memory lane brings you nostalgia - it did for us.

Podcasts Learning

In this episode we discuss our timeless podcasts. For those who are new and listening for the first time - welcome! This podcast is a great jumping off point to learn about specific topics we've covered. If you have been with us for some or all of the time, thank you for being with us, and we hope this trip down memory lane brings you nostalgia - it did for us.

I thought it was worth a moment to reiterate on the new Performance Schema related defaults that MySQL 5.7.7 brings to the table, for various reasons.

For one, most of you might have noticed that profiling was marked as deprecated in MySQL 5.6.7. So it is expected that you invest into learning more about Performance Schema (and Mark’s sys schema!).

Second, there are lots of virtual environments and appliances out there running Community Edition MySQL where Performance Schema can be a useful tool for analyzing performance. Thus, expect to see more articles about using PERFORMANCE_SCHEMA and SYS_SCHEMA from us!

Third, we have more and more junior readers who might benefit from light reads such as this.

The new defaults that I wanted to highlight are mentioned in the …

A few months ago I updated my profile on LinkedIN, and adjusted my position as CTO and founder of Athoa Ltd, a British company currently active for translation services and events that in the past hosted a couple of interesting open source projects. I simply forgot to disable the email notification to my connections, set by default, and in 2-3 hours I received tens of messages from friends and ex-colleagues who were curious to hear about my new adventure.

Today, I changed my profile on LinkedIN again and have left the email notification set on purpose.

As of today, I join the team at ScaleDB. My role is to define the product and the strategy for the company, working closely with CEO Tom Arthur, CTO …

Providing a suitable High Availability (HA) solution for each database system is one of the challenging tasks for a DBA and here we have to answer some questions like the following ones:

1. What is the cost for that HA solution?
2. Is it required to change the system structure or the DB design to use that HA solution?
3. Is it complicate to understand, use or maintain ?

Choosing the suitable HA solution for each system will depend on the answers of such questions …
In this post, I’m going to write about MySQL Master High Availability MHA as a nice tool which provides HA for MySQL by performing automatic fail-over or fast online master switching with almost no downtime!

Before going through more details about MHA, let’s first answer the previous questions:

1. MHA is a free opensource tool, no cost to …

All of our services (external REST APIs and internal services) are written in Go. Like others, we wanted to factor out repeated code, but found it hard to do without making things messy or hiding the flexibility of the built-in net/http interfaces. After evaluating many “REST frameworks” for Go, we found some that seemed to have good ideas, but nothing that met our needs well enough. Using these as inspiration and drawing on experience with other languages and their frameworks, we created Siesta. We believe it improves on other projects with similar goals, and is worth trying.

Siesta is our third “REST framework;” the others are ugly internal-only failures we will never open source. Siesta is designed to accomplish the following:

• Handle common tasks such as defining and validating inputs, which can be in the URL or query string. These are strongly typed and flexible.
• More sophisticated routing than …