The latest set of updates for MaxScale has just been released, among the highlights of this alpha release are improved Galera support, the introduction of the first phase of the filter API and server maintenance mode.

Galera Support

MaxScale has always supported Galera, at least since the earliest downloadable release, now it has the ability to use Galera in a different way.

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Optimization involves improving the performance of a database server and queries that run against it. Optimization reduces query execution time and optimized queries benefit everyone that uses the server. When the server runs more smoothly and processes more queries with less, it performs better as a whole. To learn more about how a MySQL developer can make a difference with optimization, take the MySQL Developers training course.

This 5-day instructor-led course is available as:

• Live-Virtual Event: Attend a live class from your own desk - no travel required. Choose from a selection of events on the schedule to suit different timezones.
• In-Class Event: Travel to an education center to attend an event. Below is a selection of the …

Introduction So here’s a recent requirement that I’ve just encountered. I have a shared MySQL database I have several users that I want them to be able to create new databases However, I don’t want them to see each other’s databases And just to be absolutely clear, I obviously don’t want to give them all […]

Have you ever wondered exactly does log_warnings=2 log? Well, I have, and finally decided to check the code. (The manual used to mention setting this to 2 for diagnosing some connection-related problems, but I didn’t run into that comment in my most recent search.)

Basically, in recent 5.6 source code, we find “log_warnings > 1″ in 7 files. In 5.5 source, it is only in 5 files. Here are the 7 files in 5.6:

filesort.cc (line 460)
log_event.cc (lines 4873, 10020, 11209)
rpl_master.cc (line 912)
rpl_rli_pdb.cc (lines 1538, 1596, 1735, 2066)
rpl_slave.cc (lines 3585, 4684, 5405, 5436)
sql_acl.cc (lines 9591, 9613, 11351)
sql_connect.cc (line 791)

Long story short, the main (most common) ones are when a filesort fails (filesort.cc) or a failed login occurs (sql_acl.cc). Then there are some replication-specific instances where it logs extra info, such as master/slave/binlog info, “ignored” errors, and some summary stats …

MaxScale 0.7.0 was recently released (it is the 4th alpha, with the beta on the near horizon), and is available for download here.

The release contains a number of new enhancements as well as 8 bugs fixes.

Enhancements:

1. Galera Support: Enhanced support for Galera cluster to allow Galera to be used as a High Available Cluster with no write contention between the nodes. MaxScale will control access to a Galera Cluster such that one node is designated as the master node to which all write operations will be sent. Read operations will be sent to any of the remaining nodes that are part of the cluster. Should the currently elected master node fail MaxScale will automatically promote one of the remaining nodes to become the new master node.
2. Multiple Slave Connections: The Read/Write …

MySQL has an extensive range of high-availability solutions to suit many different use cases and deployment needs.  This list spans from the time-tested – yet continuously-improved – MySQL replication to the just-released MySQL Fabric, giving users many certified solutions for highly available MySQL deployments.  The list is growing yet again, with Oracle Clusterware adding support for MySQL.

Oracle’s Clusterware product is the foundation for the Oracle RAC, and has been battle-tested for high availability support for Oracle database, as well as other Oracle applications.  This technology is now available as part of the MySQL Enterprise subscription, and – like all Oracle commercial products – is …

The Hadoop Summit, a leading Apache Hadoop industry conference, has grown significantly over the years, and throughout the day, theCUBE, led by hosts John Furrier and Jeff Kelly, featured the best of thought leaders, use cases, data scientists, data analysts, and developers at the event. Watch yesterday's interview with Robert Hodges (CEO, Continuent) on real-time data loading from Oracle and

In this blog post we are going to talk about one of the features included since MySQL for Excel 1.2.0, we introduced some advanced options for the Import MySQL Data operation regarding Excel tables. You can install the latest GA or maintenance version using the MySQL Installer or optionally you can download directly any GA or non-GA version from the MySQL Developer Zone.

Due to all of the positive feedback that I received on the MySQL 5.7.3 & 5.7.4 blog posts, I have decided to complete the picture by doing the same for 5.7.1 & 5.7.2. Note that you will find historical releases — including milestone releases — at downloads.mysql.com.

So here is the belated post for the MySQL 5.7.1 Milestone Release, released on April 22, 2013. You can find the full list of changes and bug fixes in the 5.7.1 Release Notes. Enjoy!

InnoDB Online Alter Table

Online Rename Index This work by Marko …

MaxScale 0.6.0 was recently released (it is the 3rd alpha, with the beta on the near horizon), and is available for download here.

The particular release only contains 2 great additions and 2 important fixes (and note development continues with the 1.0 (GA) features, but these have not been put into this alpha version).

Important Additions:

1. A feature-complete read/write splitting module, i.e. read and write operations are now balanced in a smarter way to master or slave servers.
2. New client-based features, such as a version string that provides compatibility with the major connectors, the ability to connect through the root user and the use of the Unix socket when MaxScale is co-located with a client application on the same server.

Important Bug Fixes:

1. The new parameter …