http://webscalesql.org/

yeah , big buzz around that one

So I decided to check the install process:

1. Clone the repo from

root@webscalesql-5.6.clean:[Mon Mar 31 11:37:11][~]$ cd /opt/
root@webscalesql-5.6.clean:[Mon Mar 31 11:37:15][/opt]$ mkdir installs
root@webscalesql-5.6.clean:[Mon Mar 31 11:37:17][/opt]$ cd installs/
root@webscalesql-5.6.clean:[Mon Mar 31 11:37:19][/opt/installs]$ git clone https://github.com/webscalesql/webscalesql-5.6.git
Initialized empty Git repository in /opt/installs/webscalesql-5.6/.git/
remote: Counting objects: 30397, done.
remote: Compressing objects: 100% (12678/12678), done.
remote: Total 30397 (delta 18716), reused 27620 (delta 16936)
Receiving objects: 100% (30397/30397), 47.99 MiB | 460 KiB/s, done.
Resolving deltas: 100% (18716/18716), done.

2. …

In previous posts we have talked about importing data from MySQL to Excel, exporting data from Excel to a new or to a existing MySQL table (via the Export Data or Append Data operations) which are common tasks to be performed against MySQL tables. In this post we will talk about possibly the coolest feature in MySQL for Excel which is the Edit Data operation which allows the retrieval of a MySQL table's data to an Excel worksheet so the data can be edited, deleted or inserted in new rows and those changes saved back to the MySQL database in a friendly and intuitive way, and more importantly, without the need of writing SQL queries making it accessible to any kind of user.

You will learn in this guide how to do it and all the details about the Edit Data feature in MySQL for Excel.

The MySQL Development team is happy to announce our 5.7.4 development milestone release, now available for download at dev.mysql.com.  You can find the full list of changes and bug fixes in the 5.7.4 Release Notes.  Here are the highlights. Enjoy!

Error Logging

Use of error logging API in InnoDB (WL#6755) This work by Anil Toshniwal completes the integration of the new error log formatting in 5.7. It was done for the server layer in 5.7.2 and now it has been done for InnoDB. There is one common API for all error logging. Messages to the error log now have the same format with connection ID and UTC timestamp with microsecond resolution.  The user is in …

I’ve previously noted my wish to have a comprehensive password policy in MySQL Server.  MySQL Server 5.7.4 takes a significant step towards this goal by adding native support for enforcing password lifetime policy.  This complements the validate_password plugin introduced in MySQL Server 5.6, which helps ensure adequate password complexity, and builds on the password expiration mechanism also introduced in MySQL Server 5.6.  This new feature has a new documentation page, and is covered in the MySQL Server 5.7.4 change logs, which …

ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of the benchmarks carried out by Uday Sawant (ScaleArc) and myself. You can also download the report directly as a PDF here.

The goal of these benchmarks is to identify the potential overhead of the ScaleArc software itself and the potential benefits of caching. The benchmarks were carried out with the trunk version of sysbench. For this reason, we used a very small set of data, so the measurements will be fast, and it’s known that caching has huge benefits when the queries themselves are rather expensive. We decided that we would rather show that benefit with a real-world application, which is coming later is this series. And if you’re in the Silicon Valley area, be sure to join us this evening at the …

The first version of MySQL Cluster 7.4 has now been released on MySQL Labs. Note that labs loads are not suitable for production use (in fact they’re even less mature than Development Milestone Releases); their purpose is to give users a chance to see what’s in the works, try it for themselves and then provide feedback. Having read that, if you’d like to try it out then Download MySQL Cluster 7.4 from MySQL Labs.

The focus of this first Cluster 7.4 load is performance and data node restart times.

Performance

MySQL Cluster was designed from the outset to be a distributed, in-memory database and …

The MySQL developer tools team announces 6.1.4 as our GA release for MySQL Workbench 6.1.

MySQL Workbench 6.1 is an upcoming major update for the official MySQL graphical development tool.
Introducing over 30 new features, this version has many significant enhancements focusing on real-time performance assessment and analysis from the SQL statement level to server internals and file IO. You can see this in additions to the SQL Editor as well as new dashboard visualization and reporting that take advantage of MySQL Server 5.6 and 5.7 Performance Schema, and enhancements to the MySQL Explain Plans.

Additionally Workbench 6.1 is leveraging work from various teammates in MySQL Engineering by introducing a schema called "SYS" that provides simplified views on Performance Schema, Information Schema, and other areas. Special thanks to the server optimizer team, server runtime team, and Mark Leith.  For …

Background

InnoDB is a transactional storage engine. Two parts of the acronym ACID (atomicity and durability) are guaranteed by write-ahead logging (WAL) implemented by the InnoDB redo log.

A statement within a user transaction can consist of multiple operations, such as inserting a record into an index B-tree. Each low-level operation is encapsulated in a mini-transaction that groups page-level locking and redo logging. For example, if an insert would cause a page to be split, a mini-transaction will lock and modify multiple B-tree pages, splitting the needed pages, and finally inserting the record.

On mini-transaction commit, the local mini-transaction log will be appended to the global redo log buffer, the page locks will be released and the modified pages will be inserted into the flush list. Only after the log buffer has been written …

Best MariaDB ever hits the streets – MariaDB 10 innovations developed with Google, SkySQL & Fusion-IO

London, United Kingdom – 31 March 2014 – The MariaDB Foundation, an independent body which promotes the popular open source database MariaDB, today announced the much-anticipated general availability of MariaDB 10, providing today’s generation of application developers with enhanced performance and functionality.

Since its launch in 2009, MariaDB has built an active and vibrant open source community and has led the way in database innovation. In 2013, Wikimedia Foundation, the people behind Wikipedia, announced the migration of many of its production MySQL systems over to MariaDB and Google confirmed it aims to move its thousand-plus MySQL instances over to MariaDB technology.

Engineered by some of the world’s leading database experts, including MySQL founder, Michael ‘Monty’ …

MySQL Cluster is used by many different industries. MySQL Cluster thrives in the most complex data environments that demand real-time analytics such as:

• Financial trading with fraud protection
• Feed-streaming analysis and recommendations
• Massive online multiplayer games
• Communication services

To learn more about MySQL Cluster, take the MySQL Cluster training course. Below is a selection of events already on the schedule for this 3-day instructor led course: