High availability is necessary for organizations to compete. This blog post shows the tools for for MySQL databases and how we can help configure and deploy.

The post The Mechanics of High Availability appeared first on Datavail.

The website or mobile app is the storefront for participating in the modern digital era. It’s your portal for inviting users to come and survey your products and services. Much attention focuses on front-end development; this is where the HMTL5, CSS, and JavaScript are coded to develop the landing page that everyone sees when they visit your site.

But the real magic happens on the backend. This is the ecosystem that really powers your website. One writer has articulated this point very nicely as follows:

The technology and programming that “power” a site—what your end user doesn’t see but what makes the site run—is called the back end. Consisting of the server, the database, and the server-side applications, it’s the behind-the-scenes functionality—the brain of a site. …

By default for MySQL server, InnoDB Engine is getting used widely due it’s ACID support, optimized read-write performance and for many other reasons which are great significance for the database server.

In this blog post, we are going to cover the InnoDB tablespace and its features like,

• InnoDB engine tablespaces
• Tablespace Data Encryption
• Tablespace related Configuration

InnoDB engine tablespaces System tablespace:  

Common tablespace for MySQL server operations. Apart from the table data storage, InnoDB’s functionality requires looking for table metadata, storing and retrieving MVCC info to support ACID compliance and Transaction Isolation. It contains several types of information for InnoDB objects.

• Contains:
  Table Data Pages
  Table Index Pages …

Many organizations are shifting toward the cloud, but how much are they moving over? New post explains top five reasons to move your MySQL database to AWS EC2.

The post Top 5 Reasons to Move MySQL to AWS EC2 appeared first on Datavail.

I’ve had some questions from people using MySQL Cluster GPL and wanting to move to using MySQL Cluster Carrier Grade Edition, i.e., they want to use MySQL Cluster Manager, MCM, to make their lives much easier, in particular, upgrading (as well as config change ease and backup history).

All I want to do here is to share with you my personal experience on migrating what’s considered a ‘wild’ NDB Cluster to a MCM managed cluster. It’s just as simple to follow the manual chapter Importing a Cluster into MySQL Cluster Manager so at least you can see how I did it, and it might help someone.

[ If you’re not migrating but just looking for further information on NDB Cluster, and came across this post, please please PLEASE look at the …

Join Percona’s, Architect, Manjot Singh as he presents Database Backup and Recovery Best Practices (with a Focus on MySQL) on Thursday, July 27, 2017 at 11:00 am PDT / 2:00 pm EDT (UTC-7).

Register Now

In the case of a failure, do you know how long it will take to restore your database? Do you know how old the backup will be? In this presentation, we will cover the basics of best practices for backup, restoration and business continuity. Don’t put your company on the line due to bad data retention and backup policies.

…

Embedding Structured Query Language (SQL) within PHP, or other programming languages, has been problematic for some. Mixing two programming languages together is just plainly not aesthetically pleasing. Especially when you have a declarative language (SQL) mixed with a procedural-object oriented language. But now, with the MySQL XDevAPI PECL extension, PHP developers can now stop mixing the two languages together together. MySQL Document StoreThe MySQL Document Store eliminates the heavy burden for SQL skills. It is designed to be a high speed, schema-less data store and is based on the MySQL JSON data type. This gives you roughly a gigabyte of store in a document format to do with as needed. So you do not need to architect you data before hand when you have no idea how it will evolve. No need to normalize your data. Now behind the scenes …

The VideoThe find() function for the MySQL Document Store is a very powerful tool and I have just finished a handy introductory video. By the way -- please let me have feed back on the pace, the background music, the CGI special effects (kidding!), and the amount of the content. The ScriptFor those who want to follow along with the videos, the core examples are below. The first step is to connect to a MySQL server to talk to the world_x schema (Instructions on loading that schema at the first link above).

\connect root@localhost/world_x

db is an object to points to the world_x schema. To find the records in the countryinfo collection, use db.countryinfo.find(). But that returns 237 JSON documents, too many! So lets cut it down to …

I am starting a series of videos on the MySQL Document Store. The Document Store allows those who do not know Structured Query Language (SQL) to use a database without having to know the basics of relational databases, set theory, or data normalization. The goal is to have sort 2-3 minute episodes on the various facets of the Document Store including the basics, using various programming languages (Node.JS, PHP, Python), and materializing free form schemaless, NoSQL data into columns for use with SQL.

The first Episode, Introduction, can be found here.

Please provide feedback and let me know if there are subjects you would want covered in the near future.

Tumblr is a big user of MySQL, and MySQL automation at Tumblr is centered around a tool we built called Jetpants. Jetpants does an incredible job making risky operations safe and reliable, even fairly complex tasks like replacing failed master servers, or splitting a shard.

While Jetpants is an incredibly effective and valuable tool for Tumblr’s day-to-day operation, it has remained very difficult to implement a meaningful testing framework. Integration testing at this level is very challenging. In this article I’ll go through these challenges and how we’ve tackled them at Tumblr.

Requirements

Jetpants operates under the assumption you’re managing MySQL daemons on a fully functional host, and that it can:

• ssh to the target system
• manage processes via service or systemctl commands
• copy data around between systems …