The MySQL Utilities Team is pleased to announce the latest GA release of
MySQL Utilities. This release marks a milestone of concentrated effort to
expand the use of utilities in more diverse installations through improved
robustness, error handling, and quality.

Many Improvements
There are number such enhancements in this release. In this post we will
highlight a few of the more significant improvements.

• (new utility) MySQL .frm Reader (mysqlfrm) - read .frm files and generate CREATE statements with or without a server connection.
• (revised) improved documentation including a section on example administrative tasks - see http://dev.mysql.com/doc/workbench/en/mysql-utilities.html
• MySQL Utilities is packaged for .msi, .rpl, .deb platforms and source .tar/.zip
…

MySQL 5.6 includes a host of enhancements to replication, enabling DevOps teams to reliably scale-out their MySQL infrastructure across commodity hardware, on-premise or in the cloud.

One of the most significant enhancements is the introduction of Global Transaction Identifiers (GTIDs) where the primary development motivation was:

- enabling seamless failover or switchover from a replication master to slave

- promoting that slave to the new master

- without manual intervention and with minimal service disruption.

You can download the new MySQL Replication High Availability Guide to learn more. …

Have you ever wondered what was in those .frm files littered throughout your data directory? Better still, have you encountered a situation where your data is either missing (was deleted) or damaged and all you have is the .frm files but don't know the structure of the table? Well, wonder no more!

The MySQL Utilities Team is pleased to announce the newest utility - the .frm reader (mysqlfrm). This utility is designed to read .frm files and produce a facsimile of the CREATE statement for the table or view.

That's Impossible! How Can That Work?
It works by making a copy of the .frm file(s) and launching a new, read-only instance of your existing server. The server need not be running but you are required to provide an open port for the new instance with the --port option.

The utility will launch the cloned server without reading your configuration file (--no-defaults). The utility also makes some …

The MySQL Utilities Team is pleased to announce a major advancement of MySQL Utilities. It is now available as a separate download!

That's right. If you want to use MySQL Utilities without installing MySQL Workbench, you can do that now.

The Utilities release-1.3.0 has been built for Windows Installer, RPM archive, and .tar/.zip. We have also made downloads for source only if you want to use Utilities to develop your own utilities or install the product in custom location. We plan to add other repositories in the future.

Is that it? Well, not quite. We have also included a new utility - the .frm Reader. See the blog, "New Utility: .frm Reader" for more information.

If you'd like to try out the new download, visit the MySQL Workbench download page:

http://dev.mysql.com/downloads/tools/utilities/ …

The MySQL Utilities Team is pleased to announce our latest release, version 1.2.1. This release contains many quality improvements and enhancements to the HA and Replication utilities. The following lists some of the most significant improvements.

• Improved transaction gathering algorithm for failover
  • Skips slaves that are already caught up
  • Ensures all transactions in the relay logs on the slaves are executed first
• External scripts in mysqlfailover and mysqlrpladmin now receive the old and new master information
• Improved demote master handling for switchover
• Improved connection error handling
• Quoting of tables and database names has been improved
• Login-path feature now reads port and socket

The utilities team continues to focus on improving usability, making features easier to use, and …

A problem that sometimes when writing queries or stored routines is the need to use strings to do basic manipulation of the data. While from a performance perspective it is generally faster to do these manipulations inside the application, for various reasons it may be desirably to keep things inside MySQL.

This post lists two stored functions that can be used for simple manipulation of strings.

substr_count()

This is a port of the PHP function of the same name. It counts the number of times a given substring is encountered in a text. The signature is:

substr_count(
   in_haystack mediumtext,
   in_needle varchar(255),
   in_offset int unsigned,
   in_length int unsigned
) RETURNS int unsigned

The function as it stands here, has the following limitations and behaviours:

• As the MySQL convention is to use 1 as …

New in MySQL Workbench 5.2.44 is the latest release of MySQL Utilities 1.1.0. This release contains a new utility called the MySQL Utilities Users' Console (mysqluc).

The MySQL Utilities Users' Console is designed to make using the utilities easier. While it is not a new utility in the sense it doesn't provide any new functionlity for managing MySQL servers or data, it does provide a unique shell environment with command completion, help for each utility, user defined variables, and type completion for options.

That's right, you no longer have to type out the entire name of the utility. For example, you can type mysqldbe and press the TAB key and it will complete the command as mysqldbexport. Don't remember the name of a database utility you want to use? That's no problem either - just type mysqldb and press TAB twice. The console will list all of the utilities that start with mysqldb.

The same is true …

If you’re a user of MySQL Workbench then you may have noticed a pocket knife icon appear in the top right hand corner – click on that and a terminal opens which gives you access to the MySQL utilities. In this post I’m focussing on the replication utilities but you can also refer to the full MySQL Utilities documentation.

What I’ll step through is how to uses these utilities to:

• Set up replication from a single master to multiple slaves
• Automatically detect the failure of the master and promote one of the slaves to be the new master
• Introduce the old master back into the topology as a new slave and then promote it to be the master again

Tutorial Video

Before going through the steps in detail here’s a demonstration of the replication utilities in action…

To get full …

Managing a MySQL database server can become a full time job. In many occasions, one MySQL DBA needs to manage multiple, even tens of, MySQL servers, and tools that bundle a set of related tasks into a common utility can be a big time saver, allowing you spend more time improving performance and less time executing repeating tasks. While there are several such utility libraries to choose, it is often the case that you need to customize them to your needs. The MySQL Utilities library is the answer to that need. It is open source so you can modify and expand it as you see fit.

In the latest episode of the "Meet the MySQL Experts" podcast series, Chuck Bell, Sr. MySQL Software Developer at Oracle, introduces a variety of recently released MySQL Utilities, and how DBAs can save significant time using the …

In the latest episode of our “Meet The MySQL Experts” podcast, Luis Soares, Engineering Manager of MySQL Replication discusses the new Global Transaction Identifiers (GTIDs) that are part of the latest MySQL 5.6 Development Release. We are also joined by Chuck Bell who discusses how the new MySQL HA utilities use GTIDs to create a self-healing replication topology.

In the podcast, we cover how GTIDs and the HA utilities are implemented, how they are configured and considerations for their use.

You can also learn more from Luis’ blog on GTIDs in MySQL 5.6 and Chuck’s …